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Important notice:

Please note that this page is about the original diagnostic tool provided by vehicle manufacturer. The tool can be usually bought only by authorised dealer. The page is intended only for educational purposes. All mentioned names and rights belong to the owner.

Premium Tech Tool test functions list  

 

ptt-logo 

 

1 - Service and maintenance

 

                17004-3 - Fault codes, test mode

The purpose of this test is to inspect the status of the fault codes in order to isolate the causes of faults in the event of electrical faults such as open circuits and loose connections.  TEST MODE: Certain control units can be set to special test mode. When a control unit is in the test mode the sensitivity for fault codes is higher. This makes it possible to see all faults, even those that are only active for a very short time.  The test mode cannot be activated when the engine is running, but the engine can be started after the control module has been set to test mode.

                17007-3 - Oscilloscope

                Note: The test is suited to two different oscilloscope types.

                The purpose of the test is to access the oscilloscope as a measuring instrument.

                17012-3 - Error codes

This test can be used to read and erase any fault codes stored in the control units of the vehicle. You can also read freeze frames, which are linked to certain fault codes.  READ FAULT CODES - MID FILTER: The control units you want to read are selected in the MID filter before the test is started. The default setting is that all control units are selected.  ERASE FAULT CODES: Fault codes can be erased, either all together or individually. When you erase a fault code, select the code to be erased.When correcting OBD fault codes, make sure to verify that the fault code is inactive and erased afterwards. If the fault code is not erased or if a root fault is not corrected, the MIL lamp will light until the fault code has become inactive and 3 fault-free cycles have been performed.FREEZE FRAME: A "Freeze frame" is a collection of values from a number of sensors and components, saved at the time the fault code was stored. MID128: The values are saved at two points before, one at the time of the fault code, and at two points after the fault code occurred. MID136: The values are saved when the fault code occurred.Click on button "Read Freeze Frames" to read off the Freeze Frames. Note that the button is only available when there are Freeze Frames in one of the control units.

                17031-3 - Diagnostic status, check

The functionality of the operation is to help the workshop mechanics to know if a diagnostic function has completed or not when he / she tries to verify a repair.

With the help of repair status it is possible to see if the diagnosis has completed or not and by that be sure of the fault code status (active/inactive).

ResultThis column show the result of the diagnosis when the procedure is done.

Green - Repair OK.

Red - Repair NOK. Question mark - Error.

Hourglass - Diagnosis not fulfilled yet.

Empty - The fault code doesn't have repair status.StatusThis column show the current status of the diagnosis.

Ready - The diagnosis is done.

Not ready - The diagnosis is still in progress.

N/A - No diagnosis for this fault code. Error

                17034-3 - Vehicle information, test

This operation reads ECU information from the vehicle.

                17037-3 - Sensor and parameter values, monitoring

Allows the user to monitor a selection of sensor values read from the J1587 serial communications bus. The user may select the desired sensors from the Available signals list to monitor engine and vehicle operations.

                17071-3 - Function monitoring parameters, reset

The purpose of the test is to reset saved characteristic information in the engine control unit when one or more of specific components are replaced. The engine control unit monitors these components during operation and "learns" their characteristics.

                17073-3 - Service Alert System, Configuration and Reports

This test allows you to reset the service reminder and adjust the service interval.You can even program a number of parameters to active the function of the service reminder. This is normally performed after a conversion kit for the service reminder has been installed.There are three values that can be used to state when a service reminder should occur: mileage, engine hours and number of days since last reset.If more than one service interval is used, then the one that occurs first will result in the service reminder.One can read out and write in new values for each service interval.State the value 0 to inactivate the service reminder for one or more service intervals.

 

2 - Engine, Engine mounting and equipment

 

                20 - General

                                20005-3 - Fuel consumption data

This test can read off the fuel consumption values saved in the engine control unit.Important ! These values should be compared with the customers fuel journals for evaluating any fuel consumption complaints.

                                20006-3 - Engine statistics data

This test will show different values which are saved in the engine control unit. These values cannot be erased.The operation allows the user to view life and vehicle trip information logged by LVD parameters (Logged Vehicle Data). Seven tabs are available to show the graphical charts representation and one table is reporting Engine Torque x Engine Speed.Information that can be recorded in a memory counter space, those are used to build a number that represents how many hours that a measurement value stays fixed in each X-Axis constant range. Then is possible to analyze how the truck behavior was during a specific situation. For example, what are the sensors values when the vehicle runs in a specific application? Or if a driver had conducted his/her vehicle in a bad way.

                                20007-3 - Engine protection data

This test can be used to read statistics saved in the engine control unit about engine protection activation throughout the service life of the engine. These values cannot be erased.

                                20036-3 - Perf

Start the program using the start button.  To evaluate see the service information.

                               

                21 - Engine

                                21006-3 - Cylinder compression, test

This test indicates if there is any deviation in compression in any cylinder in relation to the other cylinders.  For the values to be accurate the test must be carried out with the engine at operating temperature.

                22 - Lubrication and oil system

                                22001-3 - Oil pressure test (during cranking)

This test is used to check that the correct engine oil pressure is attained during cranking in order to start the engine without risk of damage.When the test (Engine cranking) is started the fuel flow to the cylinders will be cut off. This is done so that the start engine is able to crank the engine and the engine oil pressure can be observed without starting the engine.The engine oil temperature should be approximately 20°C.

                23 - Fuel system

                                23016-3 - Cylinder balancing, test

This test indicates whether any of the injectors deviates too much in the fuel injection so that the engine characteristics are damaged.  Positive compensation means that the injector is not providing enough fuel to the cylinder. The injection time is increased for the injector giving too little fuel in order to achieve even running in the engine.

                                23017-3 - Feed pressure, inspection

This test checks that the supply pressure is in accordance with the specification. To ensure that the supply pressure is within specifications, the test should be performed both at idle and at 1400 rpm (rpm).If a fault is indicated, follow the fault tracing instructions in the service information, function group 23: Check list "Supply pressure, fault tracing".

                                23021-3 - Fuel volume, check

This test checks the fuel volume, either with the vehicle stationary or during a test drive. The fuel volume can be checked under special conditions, such as driving with the power take-off or other power consuming accessories.

                                23022-3 - Fuel pressure

Start the program using the start button. To evaluate see Service information.

                                23024-3 - Power consuming equipment, fuel volume, check

This test checks the fuel consumption of power consuming equipment such as a power take-off, compressor, fan, generator etc.  Start the engine. Activate the component to be checked. Note the fuel consumption level. Deactivate the component. Note the difference in fuel consumption.  For an accurate evaluation, the conditions should be the same as when previous readings were taken on the vehicle.  If there are no values for the relevant vehicle values can be read using test: "Sensor values history, read off. From the control unit. "  If there are no previous values a reference vehicle can be used. The reference vehicle must be equipped exactly the same for the values to be used as reference.  Check if any repairs or superstructure additions have been carried out on the vehicle which may affect the fuel consumption.

                                23028-3 - Fuel system bleeding, test

The test checks the fuel system venting function. The test checks the conditions for the function, control from the engine control unit to the electric fuel pump and the status of the switches in the cab.Conditions for performing venting of air from the fuel system are:

Engine off.

Vehicle speed 0 kph (0 mph).

Parking brake applied.

                                23321-3 - Draining water in the fuel, test

This test checks the water draining function of the water separator.  The test checks the conditions for the function, the regulation from the engine control unit to the drain valve (Y38), and the status of the stalk in the cab and also the water-in-fuel indicator (B52).The conditions for draining water from the fuel system are:

Engine off.

Vehicle speed 0 kph (0 mph).

Parking brake applied.

Water indicator signal active.

                                23712-3 - Injectors shut off, manual

One injector at a time can be manually shut off using this test. This is a complementary test to the cylinder balancing test. Shut off the suspect injector. Listen to the engine note. Run the test at the engine speed at which the misfire occurs. If there is no misfiring at any engine speed, the test must first be performed at idle and then at an engine speed of 1000 rpm.

 

                24 - Fuel system, gas propulsion

                25 - Inlet and exhaust system

                                25003-3 - Boost pressure, test drive

Purpose of testThe boost pressure test shows if the engine fuel supply is correct and if the turbo and the boost pressure systems are OK.Test descriptionThe test should be performed by driving the vehicle fully loaded, in a pre-determined gear (second or third highest gear) and with the accelerator pedal depressed (100%), allowing the engine speed to gradually increase from 1000 rpm. The vehicle should accelerate from 1000 to 1800 rpm in 30-50 seconds.The test should be performed on level ground or on a road with a slight uphill slope.It is very important that the selected gear (second or third highest gear) and road conditions allow the engine speed to increase as described.

                                25005-3 - Test driving, response

The response test shows how quickly the boost pressure, and therefore power, is built up when the accelerator pedal is depressed quickly. The response test is carried out by driving the vehicle under full load on a specific axle. The gear is determined according to load and traffic conditions and must be selected so that the engine speed does not rise too quickly under full throttle. After acceleration, the engine speed may increase/decrease by a maximum of 50 rpm.For automatic transmissions, the test must be performed as a STALL test.

                                25006-3 - Intake and exhaust system, check

This test checks whether the boost pressure sensor is functioning correctly and whether there are any major blockages in the intake and exhaust system. Rapidly press the accelerator pedal to high idle speed. Maintain high idle speed for approximately 10 seconds. Read off the boost pressure in the intake manifold when the value has stabilized. Repeat the test three times. Make a note of the highest value.

                                25336-3 - Engine brake function, test

The purpose of this test is to check the engine braking switch, the conditions for engine braking and the control function from the engine control unit to the exhaust gas governors and VCB's solenoid valves.

                                25340-3 - Warm-Hold function, test

The purpose of this test is to check the heat retention function of the exhaust pressure governor, the conditions for heat retention, and the control from the engine control unit to the solenoid valve for the exhaust pressure governor.

                                25456-3 - Exhaust aftertreatment diagnostics

The purpose of this operation is to check the status of inputs and outputs that are related to the exhaust after-treatment system.This operation enables a check of the after-treatment fuel shut-off valve and a means to purge air from the after-treatment fuel system.

                                25457-3 - Diesel Particulate Filter Service Regeneration

This operation is used to perform a "service regeneration" of the diesel particulate filter (DPF).During engine operation, the Diesel Particulate Filter becomes loaded with soot. Regeneration of the DPF takes place during engine operation in order to remove the soot. If the soot level becomes greater than that which can be removed by the normally-occurring regeneration process, service regeneration may be needed. Service regeneration may also be needed to prepare the filter for ash cleaning.To perform a service regeneration of the diesel particulate filter (DPF), ensure that the vehicle is in a suitable location and start the engine. The exhaust temperature during this process becomes very high, therefore be sure that the exhaust outlet is not directed towards anything that could be damaged by high temperatures. Some exhaust extraction hoses may not be designed to handle the high exhaust temperature that is generated by the service regeneration process, so it is recommended that this procedure be performed with the vehicle outdoors rather than connecting an extraction hose to the exhaust tailpipe.Start the operation by clicking the start button in the toolbar or by pressing Ctrl+Spacebar. Click the activation button in the Service Regeneration Activation object in order to start the service regeneration process.The engine speed will increase along with activation of the discharge recirculation valve in order to generate the exhaust heat needed to support the regeneration process. When the diesel particulate filter (DPF) assembly has reached a suitable temperature, the after-treatment fuel shut-off valve will be activated in order to supply fuel pressure to the after-treatment injector.

                                25537-3 - Variable geometry turbo function test

This test shows the status of the turbo and it's actuator.The following conditions must be fulfilled in order for the test to be activated:

No other test may have been started on the VGT.

The parking brake must be applied.

The test may not be performed if the VGT's position sensor is faulty.

The test may not be performed if the VGT's actuator is faulty.

The test may not be performed if the voltage is below the normal threshold level, 20 V.

The vehicle must be stationary (0 kph)(0 mph).

The engine must be turned off.

                                25585-3 - Actuator by-pass valve, test

This test checks that the wastegate opens and closes.This operation can be done with a stationary vehicle (Turbo wastegate, 30% activation) or when test driving (Charge pressure, output torque, pedal position and engine speed against time).If this operation is done due to a request from Guided Diagnostics, return to Guided Diagnostics after the test is completed for further fault-finding/evaluation.

                                25846-3 - SCR system, test

This test is for SCR system testing.

                                25847-3 - SCR system drain, test

The purpose of the test is to drain the system, if this was not done at shut down.The AdBlue solution is pressed back to the container, so there should be no risk of AdBlue leaking out when the system is opened for i.e. filter replacement.In normal conditions the system is drained automatically each time the ignition is turned off, but some vehicles may have a certain delay. The reason is to avoid unnecessary starting times with short stops.

                                25857-3 - Urea Crystallisation SCR Catalytic Silencer, Regeneration

This operation is used to perform a "service regeneration" of the SCR Catalyst.Under certian circumstances, the SCR catalyst may become loaded with crystals, urea deposits, which is a chemical process that may occur when urea is injected in cold duty cycles that never reaches high exhaust temperatures. If the crystallisation level becomes greater than that which can be removed by the normal engine operation, service regeneration may be needed. The exhaust temperature during this process becomes very high (up to 500ºC).

                                25920-3 - Exhaust aftertreatment system, service regeneration

This operation is used to perform a "service regeneration" of the diesel particulate filter (DPF).During engine operation, the Diesel Particulate Filter becomes loaded with soot. Regeneration of the DPF takes place during engine operation in order to remove the soot. If the soot level becomes greater than that which can be removed by the normally-occurring regeneration process, service regeneration may be needed. Service regeneration may also be needed to prepare the filter for ash cleaning.To perform a service regeneration of the diesel particulate filter (DPF), ensure that the vehicle is in a suitable location and start the engine. The exhaust temperature during this process becomes very high, therefore be sure that the exhaust outlet is not directed towards anything that could be damaged by high temperatures. Some exhaust extraction hoses may not be designed to handle the high exhaust temperature that is generated by the service regeneration process, so it is recommended that this procedure be performed with the vehicle outdoors rather than connecting an extraction hose to the exhaust tailpipe.Start the operation by clicking the start button in the toolbar or by pressing Ctrl+Spacebar. Click the activation button in the Service Regeneration Activation object in order to start the service regeneration process.

                26 - Cooling system

                                26325-3 - Electrically controlled engine cooling fan (FC), test

This test checks the function of the electrically controlled cooling fan. The test includes checking the fan speed sensor (B32) and the function of the control valve (Y35) on the fan. In addition, the system that has requested the fan is checked.When running this test, the engine coolant temperature must not exceed 70 °C (158 °F) . If the temperature is higher, the fan will be activated automatically by the engine control unit.Check that no other function requests the fan before the function of the fan has been evaluated.Explanation of conditions, see "Requesting fan activation". Comment If there are active fault codes on the fan, only part of the test can be completed.

                27 - Engine controls

                                27102-3 - Accelerator pedal, test

The object of this test is to check the different positions of the accelerator pedal. 

1. Depress and release the pedal.

2. Check that the signals are within the permitted limits.

                                27104-3 - Extra throttle control, contacts and sensors, test

The object of this test is to check the different positions of the extra accelerator control.

1. Increase and reduce the acceleration.

2. Check that the signals are correct.

                                27503-3 - Cruise control, test

The object of this test is to check the function of the cruise control.

                28 - Ignition and control system

                                28308-3 - Idle shutdown function check

The purpose of this test is to check the settings and operation of idle shutdown (ISD), if enabled. The idle shutdown feature makes it possible to specify how long the engine should be allowed to idle when certain conditions are met.Compare the parameter settings to the expected operation of the idle shutdown. Check the function of the idle shutdown by allowing the engine to idle while the conditions for idle shutdown are met. Monitor the conditions using the objects in the test. Check that the engine is shut down when the conditions are met. If the engine does not shut down when expected, or shuts down when it should not, check the parameter settings and check that the monitored conditions are being read properly.

                                28407-3 - Sensor Values, Monitoring

The purpose of this test is to check that the sensors give plausible values.Evaluation of the sensor value is best done on an engine at normal working temperature, at low idle with the vehicle stationary.The test can also be used to check the sensor values under other conditions, i.e. engine stationary or driving on the road.

                                28420-3 - Flywheel and camshaft signal, test

The purpose of this test is to check the signals from the flywheel sensor and camshaft sensor.Check the box corresponding to the engine speed that is to be tested and start the program with the start button.For more detailed information, press on the information button for the subtest to be used before starting the oscilloscope.

                                28486-3 - Sensor values history

This test displays snapshots of the sensor values during the service life of the engine. 

The first value is set during test operation in the factory. The second value is set after 100 engine hours. These values are frozen and will never be erased. They can be used as a reference for evaluation if there have been any changes during the service life of the engine. Two frozen values can also be stored if major repairs have been made to the engine. This must be used as new reference values because the condition of the engine has changed. 

The engine control unit saves these sensor values every 150 engine hours when the conditions are met.

                29 - Miscellaneous

                                29332-3 - Exhaust gas circulation, function test

The test shows if the function of the EGR system is correct. The test also shows if the conditions that control the EGR system are fulfilled when it is active.For more fault tracing information see "EGR system, fault tracing (Check list R)".

                                29366-3 - EGR cooler, cleaning

This is a function for cleaning the EGR cooler. If the EGR temperature sensor has given several warnings that the EGR temperature is too high, the cooler must be cleaned internally to remove carbon deposits.

 

3 - Electrical system and instruments

 

                33311-3 - Preheating, test

The object of this test is to check the preheating function. The preheating time varies depending on the coolant temperature and engine type. See "Specifications".

                33445-3 - Ignition lock, switch, test

The object of this test is to check the different positions of the ignition switch.

                36303-3 - Interval wiper, test

The purpose of this test is to check the function of intermittent windshield wiping when washing. Status symbols turn green when different positions are selected. Start reading off the signals before carrying out the tests.1. Start reading off 2. Test "Wash-/ wipe position, windscreen wipers switch " 3. Test "Intermittent position, windscreen wipers switch" 4. Test "Activate intermittent relay"

                36415-2 - Switch lamp, test

The test is used to check the communication between the main lamp switch and the outer lighting control unit.  Test and evaluate all functions on the lamp switch.  Headlamp range adjustment is not included in this test. The signal from the headlamp range adjustment control is not connected via the control unit.

                36421-3 - Position switch reversing lamp, test

The purpose of this test to check position switch reversing lamp.

                36423-3 - Lever switch high beam / low beam, test

This test reads the signals from the full and half beam switch to the exterior lighting control unit. Test the full- and half beam switch, check the inputs status.

                36424-3 - Stalk switch direction indicator, test

This test reads the signals from the turn signal lamp switch to the exterior lighting control unit. Test the turn signal lamp switch, check the inputs status.

                36491-3 - Steering wheel buttons, test

The test is used to check the messages that are sent from the steering wheel buttons to the radio.

                36603-3 - Anti-theft alarm status, test

The purpose of this test is to check the status of the readable terminals on the alarm control unit.Go into service mode before starting the test:

1. Turn the ignition key to the drive position.

2. Press (and hold in) "switch, reduced function, alarm".

3. Press the lock button on the remote control. (The siren sounds weakly briefly). 

Exit service mode after completing the test:

1. Turn the ignition key to the drive position.

2. Press (and hold in) "switch, reduced function, alarm".

3. Press the "unlock button" on the remote control.

                36607-3 - Logged anti theft alarm activations, read out

The purpose of the operation is to read out saved alarm events stored in the control unit. Each time the alarm is activated, the control unit saves the cause and point in time of the event.

                36614-3 - Load indicator, test

The test is used to check the calibration of the load indicator when this function is engaged.1. Drive the loaded vehicle on to the weigh bridge. Note the front- and read axle weights.

                36622-3 - MID 163-Transponder reading, test

This test reads the ignition key code, checks that it is registered in the control unit and then responds with the serial number of the key.  Turn the key to the drive position. Start the test. The read off begins and the key number is displayed on the screen.  Up to 6 keys can be registered.

                36624-3 - MID 163-Key counting, test

This test counts the number of keys that are registered in the control unit. The number can be between 0 and 6.

                37173-3 - Data links, fault tracing with oscilloscope

The purpose of the test is to permit fault tracing of data links using an oscilloscope. The test adjusts the settings so that a clear result can be obtained.It is important to make the correct selections before measurement starts.

                38117-3 - Instrument, test

The test is used to check the functions of the instrument.

                38118-3 - Gauge check, instrument

This test displays the signal values obtained from the sensors by the control unit. Compare the readings from the gauges with the read off signal values.For continued fault finding, please refer to the Service information.

                38356-3 - K-factor, test

This test is used to check the programmed calibration factor.This test must be carried out on an accurately measured strip of at least 21 m (70 ft). 1. Drive the vehicle to the exact start point of the measured distance.

                38440-3 - Brake contacts, test

This test reads the signals from the brake lamp switches to the exterior lighting control unit and the signal from the brake pedal switch for the cruise control to the vehicle control module. Depress the brake pedal and check the status of the switches.S48B/C which is used for conventional trailer braking, is not used on vehicles with EBS.

                39203-3 - Audio unit function test

The purpose of this test is to check the various functions and controls of the audio unit (radio).

                39746-3 - Volvo Link, GPS, test

The purpose of this test is to check the basic functions of the GPS installed in the vehicle.

                39747-3 - Volvo Link, Satellite Communications, test

The purpose of this test is to check that satellite communication in the control unit is working.  The proximity of buildings, trees and electrical noise (such as generators, transformers or high voltage power lines) will usually affect the results.

 

4 - Gearbox

 

                40001-3 - Starting gear selection, read out

The purpose of this test is to read off log data showing the gear one started in.This function is activated on vehicles with manual gearboxes built after week 1005.  The function may also be activated on vehicles built between weeks 0837 - 1005 which have Information display (MID 140) with a part number between 21015769 - 21015794 or 21366868 - 21355894. Use conversion kit 85124541 and then perform the subtest "Configuration of the function for logging starting gear".At disc replacement, "Number of starts on gear" must always be reset.

                40005-3 - Range inhibitor, test

The purpose of this test is to check that the range inhibitors are functioning.  Preparations: Check that air pressure exceeds 550 kPa (80 psi). Connect speed simulator 9998498 to the cigarette lighter socket. Use adapter 9998533 and breakout box 9998551. Connect the adapter to the vehicle control unit at connector Pb (blue colour). Connect a laboratory cable between C3 in the speed simulator and socket 6 in the breakout box.

                40010-3 - Clutch cylinder, test

The purpose of the test is to check the function of clutch cylinder control and to check the movement of the piston between the free wheel and engaged positions.The test must be carried out in the following order:1. Start the test with the common start button. Check that the sensor value (disengaged) is stable. 2. Activate Clutch engaged. Check that the "ball" moves.The purpose is to check that the stroke lies within approved limits, and to examine the difference between the values of the "balls" in clutch wear. 1. Activate Stroke. The value must be between the parameters.2. Activate Clutch wear, calibration data (shows the current situation) and Clutch wear, stored calibration data (shows the current stored value) for clutch wear. The difference between the "balls" shall be less than 2.5 mm. If the difference is greater than 2.5 mm, this can be due to the clutch having just been replaced, without a new calibration being performed. If can also depend on a mechanical fault or software error, try to perform a new calibration and then repeat the test again.X1=The higher limit value shows the value with a NEW clutch disc (should be written on the decal). The "ball" shows the most recent value. Yellow colour on the shaft shows when it is time to change the clutch disc. Red colour on the axle shows that the clutch disc is worn out.3. Finish the test and return to the fault tracing tree for the clutch cylinder, see service information: Information type: Diagnostics, funct.grp. 43, title: Fault tracing.

                40012-3 - Gear selector position sensor, test

The purpose of the test is to check that the selected gear position is read correctly by the gear selector control unit. 

1. Start the test using the common start button. 

2. Check all selector positions using the gear selector. Check that the selected gear selector position corresponds to the position displayed by the PC. If the correct gear selector position is not displayed, check the status of the sensors in the present position. 

3. Exit the test.

                40015-3 - Range cylinder, test

The purpose of the test is to check that the solenoid valves for the range cylinder are intact and that the air cylinder piston and position sensor move.The test must be carried out in the following order:1. Start the test using the common start button.2. Activate Solenoid valve, high range, a noise should be heard.Check that the "ball" in the Sensor value moves and that the status light lights green.3. Deactivate, a noise should be heard.4. Repeat step 2 and 3 for Solenoid valve, low range.The purpose is to also check that the stroke length is within the approved values.1. Activate Actual stroke length.

                40016-3 - Split cylinder, test

The purpose of the test is to check that the solenoid valves for the split cylinder are intact and that the air cylinder piston and position sensor move. The test must be carried out in the following order:1. Start the test using the common start button.2. Activate Solenoid valve, low split, a noise should be heard.

                40020-3 - Gears, test

The purpose of the test is check that the gear "selected" corresponds with the engaged gear and to check the positions of the selector forks.The test must be carried out in the following order:

1.Check a gear by activating a gear with the PC-tool.

2. When a gear has been activated, listen for the activation sound, read off and check that "gear selected" corresponds with the activated gear.

3. Compare the positions of the selector forks with the matrix in figure V77317.If a programming fault occurs when activating a gear, the gear cogs in the transmission may not have meshed. Try moving the vehicle a short distance and start the test again.

4. Repeat steps 1-2 for the other gears.

5. Conclude the test.

                40023-3 - Gearbox speed sensor, test

The purpose of this test is to check the function of the speed sensors.Note the measured values in Service information "Function test", Powertronic, Group 437.The test must be carried out in the following order:

1. Remove the propeller shaft from the gearbox. 

2. Start the engine. 

3. Start the test using the common start button. Check that the output speed is 0 rpm.

                40024-3 - Oil sensor signals, test

The purpose of this test is to check the function of the oil temperature sensor.  The test must be carried out in the following order:  1. Start the test using the common start button.  2. Measure the temperature of the gearbox using non-contact gauge 9998519.  3. Check that the temperature of the gauge is approximately the same as the oil temperature sensor.  4. Exit the test.

                40025-3 - Solenoid valves, test

The purpose of this test is to check that the solenoid valves function mechanically by listening.  Activate the desired valve using the start button. A "ticking" noise must be heard from valves S1-S8 and a "buzzing noise" from S11 and S13 as a confirmation that the valve has been activated (the valve operates for 3-4 seconds).  If no sound is heard from the relevant valve, carry out the measurement according to the instructions in the service information "Check list control system gearbox", Powertronic, Group 437.

                40026-3 - PWM valves clutches and brakes, test

The purpose of the operation is to check the valves in the gearbox's control systemThe valves are controlled by PWM current output.There is a subtest for each brake and clutch.

                40027-3 - PWM valves main pressure and brake pressure, test

Special tools: Nipples 9809662, 9809663 and 9809664 are included in kit 9998630 and cannot be ordered separately. Where quick-release nipples are mounted on the gearbox, use angle connection 9996722 and adapter 11666027.The purpose of this test is to check the function of the PWM valves.

                40028-3 - Lockup and Retarder, test

Special tools: Nipples 9809662, 9809663 and 9809664 are included in kit 9998630 and cannot be ordered separately. Elbow union 9996722 is used when quick-release nipples are installed on the gearbox. The purpose of the test is to check that the PWM valves and retarder function and to check that the retarder gives the correct torque.

                40083-3 - PWM valves clutch, test

The purpose of the test is to check the function of the clutch cylinder and to check for any air leakage and also test the performance of the clutch.

                40087-3 - Pressure sensor, test

The purpose of this test is to check the function of the pressure sensor.

                40091-3 - Gear activation, control housing (for removal/replacement)

Special tools: 9990099, 9998555 Other special equipment: Programming unit 9808584, Adapter 9808563 With removed gearbox: Make a test nipple from: 969327, 969263, 1592924, 9992976.The purpose of the test is to arrange the gears, using the PC tool, so that the regulator housing can be lifted from the gearbox, see figure. The test is performed with the gearbox mounted in the vehicle but electrically isolated, or with a removed gearbox.

                40098-3 - Gears, check oil pressure, test

Special tools: Nipples 9809662, 9809663 and 9809664 are included in kit 9998630 and cannot be ordered separately. Elbow union 9996722 is used when quick-release nipples are installed on the gearbox. The purpose of this test is to check the pressure for the brakes and clutches in the gearbox. Note the measured values in Service information "Function test", Powertronic, Group 437.

                40112-3 - Gear selector, test

The purpose of the test is to check that the gear selector position is read correctly by the control unit.1. Start the test using the common start button.2. Check all gear selector positions against the gear selector. Check that the gear selector position agree with the status shown in the PC-tool and in the display.3. Exit the test.

                40145-3 - Solenoid valves measuring, test

The purpose of this test is to check that the solenoid valves function electrically.  Carry out the measurements according to the instructions in the service information "Inspection list gearbox control system", Powertronic, Group 437. To carry out the measurement the valves must be controlled using the PC-. 1. Connect adapter 9998543 and breakout box 9998551 to the Canon switch.  2. Activate the different valves and read off the values using multimeter 9510060.  3. Exit the test.

                40170-3 - Inhibit cylinder, first gear, test

The purpose of the test is to check the function of the inhibit cylinder for first gear.The test must be carried out in the following order:1. The gearbox shall be in neutral. 2. Depress the clutch pedal. 3. Activate the solenoid valve with the PC-tool, it should not be possible to engage first gear. 4. Inactivate the solenoid valve. 5. Depress the clutch pedal, it shall be possible to engage first gear. 6. Conclude the test.EvaluationIf it is possible to engage first gear with the solenoid valve activated, undo the solenoid valve from the control housing: Check that the solenoid valve is not binding. Check that there is power to the solenoid valve.When mounting, tighten the bolts to torque 10+/- 1.5 Nm.

                41126-3 - Clutch wear check, test

The purpose of the check is to read out the X1-value, actual clutch wear and look at clutch wear in relation to service.

                41180-3 - Clutch drag, test

The purpose of the test is to check clutch drag.The test must be carried out in the following order:1. The gear lever should be in position N. 2. Start the engine. 3. Start the test with the common start button. 4. Check that the value is within the limits. 5. End the test.

                41181-4 - PWM valves clutch activation, test (gearbox removed)

The purpose of the test is to operate the clutch PWM valves in order to perform leak checks either by listening or using soap water.Special tools: 9990099, 9998555

                41182-3 - PWM valves clutch activation, test

The purpose of the test is to operate the clutch PWM valves in order to measure on the clutch valve assembly.

                43116-4 - Gears, test (Gearbox removed)

The purpose of the test is to check that the "engaged" gear corresponds to the selected gear. The gearbox must be calibrated before the test is run.

                43121-3 - Gear selector cylinder 1/reverse gear, test

The purpose of the test is to check that the gear shift solenoid valves are intact and that the air cylinder piston and position sensor move.

                43122-3 - Gear selector cylinder 2/3, test

The purpose of the test is to check that the gear shift solenoid valves are intact and that the air cylinder piston and position sensor move.

                43126-3 - Solenoid valve, brake, intermediate shaft, test

This test is intended to verify the function of the brake reserved for the layshaft.The test must be done in the following order:1. The gear selector must be in position N.  2. Start the engine.  3. Carry out the test, using the common start button.  4. Check that the "ball" is between the limit values.  5. Finish the test.Possible anomalies:If the "ball" is not inside the limit values, this could be caused by faults in assembly of the disk.

                43128-4 - Solenoid valve, brake, intermediate axle, test (gearbox removed)

The purpose of the test is to operate the solenoid valve on the counter shaft in order to perform leak checks either by listening or using soapy water.Special tools: 9990099, 9998555

                43194-3 - Input signals for gear selection, test

The purpose of the test is to check input signals for gear selection.

                43773-3 - Vehicle inclination sensor, test

The purpose of this test is to check the function of the incline sensor.The test must be carried out in the following order:The vehicle must be on a level surface with the air suspension in driving mode.1. Place a protractor on the frame. 2. Start the test. 3. Compare the value given by the protractor with the "Sensor value for the incline sensor".4. Exit the test.

                48141-3 - Power take-off pressure, clutch, check

The purpose of the test is to check that the correct pressure is supplied to the power take off clutch.Perform the measurement according to instructions in service information "Function check VT1805/2006/2506PT", Powertronic, Group 437. In order to perform the measurement, the power take off must be activated with the PC tool or with the switch intended for this function.Before activation of the test, dismount equipment that is connected to the power take off if it requires a higher speed than idle to function and/or start up.1. Connect hose 88890022, transmitter (0-60 bar) 88890089, signal conversion cable 88890017, signal conversion equipment 88890014 and multimeter 88890074 (alternatively 9812519).2. Activate the power take off by clicking on the start button in the test or turning on the switch. Read off the value using multimeter 88890074 (alternatively 9812519).3. Conclude the test by clicking on the stop button or by turning off the switch.

 

5 - Brakes

 

                50006-3 - Brake pads, test

The test is used to show how much of the friction material is left on the brake pads.  1. The parking brake should be released.  2. Run the engine until the compressed air system is well charged.  3. Apply the foot brake with the ignition key in the driving position.  4. Activate the test to read off the remaining brake pad thickness. When there is 20 % brake pad material or less left, the pads are worn out and must be replaced.  5. After completing the test, the ignition key must be turned to the stop position and then back to the driving position.

                50011-3 - Modulators, test

This test is used to determine whether the modulator is functioning correctly, and to check that the air lines are correctly installed. The test takes approximately 1 minute. The test cannot be stopped during this time.

                50012-3 - Service brake valve, test

This test is used to determine whether the foot brake valve is in contact with the control unit and if the two potentiometers in the foot brake valve are correctly connected electrically.

                50013-3 - TCS function shut off, test

This test is used to disconnect the TCS function when testing on rollers. This is to prevent TCS control operation. The test must also be used when towing, with the ignition key in the drive position to avoid the towed vehicle "jumping" off the towing vehicle. This is a risk if TCS control is activated. 1. Activate "TCS, shut-off".  2. Check that the display symbol lights.

                50016-3 - Wheel speed sensor signal voltage, test

This test is used to determine whether the wheel speed sensor/pulse wheel is giving an accurate signal. 1. Connect as illustrated 2. Chock the wheels and raise the relevant axle. 3. Start the read out and rotate the relevant wheel at a steady speed of approximately 6 km/h. 4. Evaluate the result.The 2-pin connector marked 1 goes to measuring points 1-2 on the breakout box. The 2-pin connector marked 2 goes to measuring points 3-4 on the breakout box.For more detailed information, press on the information button for the subtest to be used before starting the oscilloscope.

                50017-3 - Foot brake valve signal voltage, test

This test is used to determine whether the electrical section of the footbrake valve is giving a correct signal. 1. Connect as illustrated. 2. Apply the parking brake. 3. Start the read out and press the footbrake at a steady rate. 4. Evaluate the result.For more detailed information, press on the information button for the subtest to be used before starting the oscilloscope.

                50020-3 - Wheel speed sensor, test

The test is used to determine whether the wheel speed sensor is free of faults and is correctly installed.  1. Chock the wheels and jack up the appropriate axle. Block the relevant wheel.  2. Activate the test.  3. Spin the relevant wheel so that a speed is displayed.  4. Allow the wheel to rotate freely. Read off the lowest speed which can be read off, i.e. just before 0 km/h (0 mph) is displayed. This speed must be below 6 km/h (4 mph). Repeat the procedure five times. The result must be approved once.  5. When the test is complete, the ignition key must be turned to the off position and then back to the driving position.

                50021-3 - Brake adaptation

This test is for brake adaptation.

                56023-3 - Pneumatic system, status

Using this status test it is possible to check the following data for the air drier.

Regeneration volume

Compressor, pumped air quantity

Compressor, degree of engagement

Desiccant canister, consumed quantity

Desiccant canister, remaining lifespan

                56186-3 - Air drier solenoid valves, test

The purpose of this test is to check the function of the solenoid valves.

Solenoid valve, compressor relief

Solenoid valve, regeneration valve

Air drier, regeneration function

                56362-3 - Parking brake, contact AT regulator, test

This test is used to check the signal from the parking brake switch. The switch closes if there is a drop in pressure in the secondary braking system which indicates that the parking brake has been applied.

                59110-3 - Control auxiliary brake, test

This test checks that the control for the retarder is working correctly.  A value is displayed for each control position.  The signals from the brake pedal switch and accelerator pedal position is also displayed. The signals determine when and if the retarder should be activated.  The speed (offset) above the selected cruise control speed is also displayed. The vehicle must not exceed this speed during retardation.Evaluation  If any of the signals are faulty, there is a fault in the circuit between the control and the vehicle control unit (VECU) or the control is defective.

                59221-3 - Pressure setting retarder, Test

The purpose of the test is to pressurize the retarder to locate any leakage by listening or using soapy water.Activate and deactivate the PWM-valve using the PC-.

                59222-3 - Function Retarder, Test

The aim of the test is to check the function of the retarder during road use (downhill).Start the test using the common start button, readings are taken continuously for 5 minutes (300 s). When taking many readings the test will be saved onto the job card several times. To more easily differentiate the readings it is possible to make notes in the job card for each test (set of readings).

                59242-3 - PWM valve retarder, test

The purpose of the test is to deploy the PWM-valve so that 25%, 50%, 75% and 100% of maximum pressure is reached.  When the sub-tests are run, the pressure reached is checked to ensure that it is within the limit values for each level.

                59297-3 - Temperature sensor, test

The purpose of the test is to check the function of the sensors.Check that: Coolant temperature, retarder is approximately the same as Coolant temperature, engine.

                59302-3 - Wheel speed sensor ABS, test

This test is used to detect a faulty wheel speed sensor, a faulty cable harness or incorrect clearance between the wheel speed sensor and pulse wheel.  This test checks that the ABS control unit receives a correct signal from the wheel speed sensors. A weak signal may be due to incorrect clearance between the wheel speed sensor and the pulse wheel or a faulty cable harness or sensor.  The test can either be carried out on all wheels at the same time (Test driving) or on one wheel at a time (Stationary).

                59303-3 - Toothed wheel, ABS, test

Carry out "Wheel speed sensor ABS, test" before starting this test.  The aim of this test is to check that the pulse wheel is correctly installed, undamaged and that there is no dirt that could disrupt the function of the ABS system.  The voltage ratio displayed for each wheel rotation is an indication of out-of-true or damage to the pulse wheel.  The test can either be carried out on all wheels at the same time - Test driving, or on one wheel at a time - Stationary.

                59305-3 - Solenoid control valves, ABS, test

The test is used to check that the solenoid control valve, pipe installations and cable harnesses are fault free.  The solenoid control valve is activated in a sequence similar to ABS braking.  The sequence in repeated 5 times in 20 second intervals for a total of approximately 100 seconds. This means that the mechanic is able to see the movements of the brake lever.  The movement of the brake lever depends on the pressure in the brake cylinder. Always ensure that there is full system pressure in the brake system. At an engine speed of 1000 rpm, apply the foot brake as much as possible using pedal jack 9985009.

                59306-3 - ABS control unit, test

This test is used for basic set up of the control unit. This basic setting is carried out if non-documented or non-erasable error codes occur.

                59318-3 - Foot brake valve backup, test

The purpose of this test is to check that the pneumatic function in the footbrake valve is functioning and that the air lines are correctly installed.

                59364-3 - EBS control unit input-/output signals status, test

Available tests:- Supply voltage EBS- Analogue signals from the EBS control unit- Actual brake pressure from the EBS control unit- Switch EBS- Outlets EBS- ESP steering angle sensor signal

                59371-3 - ESP function switching on and off, test

This test is used to disengage and engage the ESP function in order to perform the rolling brake test without ESP control. Start the test from the toolbar.

Switch on ESP control:

1. Activate the "ESP, activation" test.

2. Check that the display symbol goes out. 

Disengage ESP control:

1. Activate the "ESP, shut-off" test.

2. Check that the display symbol lights.

                9376-3 - Activate ABS valve, test

The purpose of this test is to check that the solenoid valve for the ABS can be controlled.

 

6 - Wheel suspension and steering

                64538-3 - Control valve, test

The aim of the test is to check the function of the control valve for electronically/hydraulically controlled axles.Before carrying out the tests, the wheels must be set to the straight ahead position.Switch off the engine and restart to have the wheels in the straight ahead position, after the test.

                64720-3 - ECU, electronically controlled hydraulic axle input output status, test

The aim of this test is too read the input and output signals from MID184, the control unit for electronically/hydraulically controlled axles.

 

7 - Frame, springs, damping and wheels

 

                72873-3 - External Signals to ECS, Test

ECS uses primary tank pressure and vehicle speed to function. The parking brake must be applied before certain ECS tests can be carried out.  This test checks that the signals from the vehicle control unit VECU are accessible and correct.

                72874-3 - Control box, test

PURPOSE: Check that the signals from the remote control box are received and correctly interpreted by the control unit.

IMPLEMENTATION: Start the test, activate the buttons and check that the received signals agree with the button in question.

                72875-3 - Pressure sensor, test

The test is used to check that the signals from all the pressure sensors which are connected to the ECS can be read and are within their permitted values.

1. Switch off ECS (key in stop position and control box in driving position). 

2. Connect a pressure gauge (9996926) and hose (9996461) to the test outlet of the pressure sensor to be tested.

3. Turn the ignition key to the drive position. 

4. Start the test. Compare the pressure on the gauge to the pressure on the screen for the relevant pressure sensor and ensure that the pressures correspond. 

5. Raise or lower the vehicle, or activate the bogie function, to see a change in pressure on both the manometer and screen.

6. Switch off ECS and remove the equipment.  (For the bogie function, version 6*4, the signal from the differential lock switch must also be active.)  When the test is completed, the vehicle will return to the drive position if the parking brake is released or the switch on the control box is set to the drive position. (If the driving position is already active, the switch must be moved out of the position and then back again)

                72876-3 - Level sensor, test

The object of this test is to check the function of the level sensor as the position of the vehicle changes.  This test must be carried out with the control button on the control box in the MAN1 position.  Activate the test using the start button (in the tool bar above). Then manoeuvre the vehicle using the buttons (in each sub-test) for each respective function. Check that the voltage for the level sensor changes according to the operation. Check that the air bellows fill with and empty of air.

                72877-3 - Solenoid valves, test

The purpose of this test is to check each individual solenoid valve in the valve assembly. Activate one valve at a time and check that a "click" or "puff" sound is heard. The valves are activated for a few seconds. When a vehicle has covering bodywork fitted, it can be difficult to hear the "clicks" and "puffs".

                72880-3 - Lift axle switch, test

PURPOSE:This test checks that the signals from the bogie switch's active position are received and interpreted correctly by the control unit.IMPLEMENTATION:1. Apply the parking brake.  2. Activate the test.  3. Activate the switch in the cab and check that the signals received by the control unit agree with the position of the switch.

                72885-3 - Air suspension system module in-output signals status, test

This test is used to read the status of the control unit input signals.Start the test, activate the different switches (bogie and auxiliary functions). Check that the received signal agrees with the positions of the switches. Note that if the signals are not present, if may be due to the vehicle not being equipped with these auxiliary functions. Green symbol = Activated position Grey symbol = Not activated position For further information, see service information under group "Fault codes electronically controlled air suspension " under group 72.

                72887-3 - ECS system status, test

The purpose of the test is to perform an evaluation of the electronic air suspension system (ECS) during normal use.To know whether the ECS system is behaving correctly, two or three signals per axle must be observed simultaneously, for example level sensor, pressure sensor and solenoid valve activation.Start the test by pressing the start button in the toolbar or the spacebar on the keyboard.

                72905-3 - Additional functions ECS, parameter test

This test is used to read off the additional function parameters. Only the parameters that are programmed will show a value.If any of the parameters are incorrectly programmed, fault codes may appear on ECS, and also on other systems.

                72928-3 - Verify level sensor calibration, test

The purpose of this test is to avoid a complete calibration process. It helps by verifying if the vehicle is calibrated within the predefined limits. This test also allows simplified fault tracing, e.g. when corrosion effect the system, when the level sensor link arms are damaged and normal sensor electrical faults. If uncertainty in performing calibration occurs, refer to service information group 728 "Level sensor, calibration". The difference compared with previous level sensors calibration is the calibration height, H2.VERSIONS: 

1. Ensure that the vehicle is unloaded. 

2. Rectify any fault codes. 

3. Chock the wheels and release the parking brake. 

4. Start the engine and fill the system with air until the load is taken off the compressor. 

5. Raise the vehicle using the control box. 

6. Switch off ECS. Position the spacers (9998626) according to the service information group 728 "ECS level sensor, calibration" but use the following measurements for spacer 9998626 instead:  H1 Spacer rear = 307 mm 

7. Switch on ECS and lower the vehicle onto the spacers using the control box 

8. Calibration must be carried out with the button on the control box in the upper "MAN1"position. 

9. Calibrate. 

10. Switch off ECS and remove the spacers.

                77601-3 - Tyre pressure monitoring truck, test

Under the tabs there are tests which are used read off information related to TPM (Tyre Pressure Monitoring).To confirm that the wheel module (tyre pressure sensors) ID has been stored and that the hose is connected to the wheel, the following can be performed after the calibration: Activate the wheel modules, by holding special tool 9990168 against them for at least five seconds, so that they transmit more frequently. Wait a further 30 seconds and read off the pressures, then check that the values have been received and that they are within realistic limits. When the air pressure in a tyre falls by more than 283 bar/sec the transmission frequency of the sensors increases.

                77615-3 - Tyre pressure monitoring trailer, test

Under the tabs there are tests which are used read off information related to TPM (Tyre Pressure Monitoring).To confirm that the wheel module (tyre pressure sensors) ID has been stored and that the hose is connected to the wheel, the following can be performed after the calibration: Activate the wheel modules, by holding special tool 9990168 against them for at least five seconds, so that they transmit more frequently. Wait a further 30 seconds and read off the pressures, then check that the values have been received and that they are within realistic limits. When the air pressure in a tyre falls by more than 283 bar/sec the transmission frequency of the sensors increases.

 

8 - Body, cab and interior

 

                87518-3 - Parking heater timer, read-out and resetting

The purpose of the test is to read out the parking heater's timer value and the applicable warning interval.  The interval can be adjusted and the timer (for when the parking heater was most recently run) can be reset.

 

9 - Miscellaneous

 

                93003-3 - Bodybuilder module Input-/Output signals status, test

The purpose of the test is to read the status from all readable terminals on the Bodybuilder module, MID 249.  Start the test. Check that status of the inputs. Compare with the specifications in the Service Manual, Fault codes Body Builder Module, group 93.  For continued fault-tracing, please refer to the wiring diagram for: Control unit Body builder module (A36)

 

 

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