Part 2
Note! There must not be any corrosion between the cable terminals and screw heads.
Check the starter motor connection for voltage supply and connection to the engine block. Check for contact resistance and oxidation.
Check the connections of the terminals to the cables.
Check the engine's ground connection for contact resistance and oxidation.
Check the connections of the terminals to the cables.
Check the positive and negative terminals of the battery. Check for contact resistance and oxidation.
Check the connections of the terminals to the cables.
Check the connection for the battery negative lead to the body.
Remedy as necessary.
Other information
- For information about the cable routing, see the relevant Wiring Diagram.
- For further information about the fuses and relays, see the Wiring Diagram.
- Checking wiring and terminals Checking Wiring And Terminals
Continue - Verification
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Checking the starter motor
Check the voltage feed cable between the battery and starter motor #6/25:1(#B1) for short-circuit to ground and open circuit.
Check fuses.
If the starter motor does not work when bridging between terminal #6/25:1(#B1) and terminal #6/25:2(#A1), despite being supplied with voltage from the battery, there is an internal fault.
Replace starter motor.
Remedy as necessary.
Other information
- For information about the cable routing, see the relevant Wiring Diagram.
- For further information about the fuses and relays, see the Wiring Diagram.
- Checking wiring and terminals Checking Wiring And Terminals
Continue - Verification
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Other fault-tracing
DONE - DONE
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Verification
Verification
VERIFIED - VERIFIED
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FAULT FOUND -
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Checking the park / neutral position (PNP) function in the gear position sensor (only vehicles with automatic transmission)
Checking the park / neutral position (PNP) function in the gear position sensor (only vehicles with automatic transmission)
Checking the park / neutral position (PNP) function in the gear position sensor (only vehicles with automatic transmission)
Note! For the test to be carried out the battery must be fault free and the starter motor relay and starter motor and corresponding wiring must be checked.
Caution! Avoid touching the pins in the control module and the corresponding connector on the cable harness.There is a risk of static discharge which could damage the control module.Discharge yourself and tools to be used by holding the tool's metal part and touching a body part on the car just before starting to work.
- Ignition on.
- When the gear position sensor is in position P or N the Engine Control Module (ECM) receives signals from the Transmission Control Module (TCM) that start is permitted.
- The gear selector shall be in position P or N.
- Parking brake applied.
Check the voltage between the Engine Control Module (ECM) terminals #B15 and #B1.
The voltage must be 0 V.
Other information
- See Connecting breakout box for Engine Control Module (ECM).
- See Signal specification for Engine Control Module (ECM).
- For information about the cable routing, see the relevant Wiring Diagram.
Is the voltage OK?
Yes - Replacing a component
No - Checking the wiring and terminals
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Replacing a component
Caution! Avoid touching the pins in the control module and the corresponding connector on the cable harness.There is a risk of static discharge which could damage the control module.Discharge yourself and tools to be used by holding the tool's metal part and touching a body part on the car just before starting to work.
If voltage is approximately 0 V on terminal #B15 on the Engine Control Module (ECM), when the gear-shift position sensor is in position P or N, the circuit for the gear-shift position sensor is working.
The fault may be in the Engine Control Module (ECM).
Try replacing Engine Control Module (ECM).
Note! Before replacing the control module, ensure that all other relevant symptom tests have been carried out.
Other information
- See replacing the Engine Control Module (ECM).
Continue - Verification
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Checking the wiring and terminals
Caution! Avoid touching the pins in the control module and the corresponding connector on the cable harness.There is a risk of static discharge which could damage the control module.Discharge yourself and tools to be used by holding the tool's metal part and touching a body part on the car just before starting to work.
Check the cable between the Engine Control Module (ECM) terminal #B15 and Transmission Control Module (TCM) terminal #A5. Check for an open-circuit. Check for a short-circuit to ground. Check for a short-circuit to supply voltage.
Remedy as necessary.
Other information
- See Connecting breakout box for Engine Control Module (ECM).
- See Connecting breakout box for Transmission Control Module (TCM).
- See Signal specification for Engine Control Module (ECM).
- See Signal specification for Transmission Control Module (TCM).
- For information about the cable routing, see the relevant Wiring Diagram.
Was a fault detected?
Yes - Verification
No - Other fault-tracing
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Other fault-tracing
DONE - DONE
------------------------
Verification
Verification
Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition off.
- Reinstall the connectors, components etc.
- Parking brake applied.
- The battery shall be fully charged.
- The gear selector shall be in position D.
- Turn the ignition key to start position (key position III).
The engine should not be able to be started.
- The gear selector shall be in position P or N.
- Turn the ignition key to start position (key position III).
It should now be possible to start the engine.
Is the function OK?
Yes - VERIFIED
No - Other fault-tracing
------------------------
Other fault-tracing
DONE - DONE
------------------------
VERIFIED - VERIFIED
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FAULT FOUND -
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Exit fault-tracing
Exit fault-tracing
The information below is conditional on no relevant diagnostic trouble codes being stored for the symptom and that all diagnostic tests for the symptom have been performed.
The fault must be diagnosed and remedied.
If no malfunction has been found in any of the diagnostic tests, report the result of the troubleshooting to the sales company/importer according to normal report procedure.
Continue - VERIFIED
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DONE - DONE
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VERIFIED - FAULT FOUND
VERIFICATION FAILED - Checking the diagnostic trouble codes (DTCs)
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Checking the diagnostic trouble codes (DTCs)
- Ignition off.
- Reconnect the connector to the Steering Wheel Module (SWM).
- Insert the key in the ignition switch.
- Turn the ignition key to position II.
Click on the VCT2000 symbol.
Check if any of the following diagnostic trouble codes have been generated in the vehicle.
Remedy as necessary.
- CEM-DE11.
- CEM-E000.
- CEM-E001.
- CEM-6C54.
- ECM, Communication with Central Electronic Module (CEM).
- ECM, Communication with Brake Control Module (BCM).
Other diagnostic trouble codes (DTCs) that may be stored in the control modules in the vehicle are not relevant for the symptom.
If none of the above diagnostic trouble codes are detected, proceed with general troubleshooting of the CAN-net according to instructions under TROUBLESHOOTING/GENERAL DIAGNOSTICS AND TESTS.
Continue - DONE
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Replacing the Steering Wheel Module (SWM)
If no fault is found on the cables or connections this means that the Steering Wheel Module (SWM) is defective and must be replaced.
Other information
- Checking wiring and terminals Checking Wiring And Terminals
Continue - Verification
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Verification
Note! After carrying out the repair, check that the fault has been remedied.
- Ignition off.
- Reinstall the connectors, components etc.
Check the operation of the steering column lock. Insert the ignition key in the ignition switch.
The steering column lock must be unlocked. It must be possible to turn the steering wheel.
Then check that the car can be started.
Can the vehicle be started?
Yes - VERIFIED
No - Fault-tracing information
-------------------------------------------------
Fault-tracing information
The fault must be diagnosed and remedied.
If no malfunction has been found in any of the diagnostic tests, report the result of the troubleshooting to the sales company/importer according to normal report procedure.
Continue - FAULT-TRACING FAILED
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Checking the diagnostic trouble codes (DTCs)
- Ignition switch position II.
Click the VCT2000 symbol to read diagnostic trouble codes (DTCs).
Check that diagnostic trouble codes (DTCs) starting with CEM-DFXX are stored in the vehicle. For example, CEM-DF04, CEM-DF07.
Remedy these diagnostic trouble codes (DTCs) first.
Other information
Were any defects found?
Yes - Checking text message in Driver Information Module (DIM)
No - Checking cable harness
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Checking cable harness
- Ignition off.
Check the cable harness in the left/right front door.
Hint: The speaker can be removed to visually check the cable harness.
Check fuses.
Remedy as necessary.
Other information
- For information about fuses, see the wiring diagram.
- Loudspeaker, side door front Loudspeaker, Front Side Door
- Lift mechanism, front door Service and Repair
Was a fault detected?
Yes - Verification
No - Checking text message in Driver Information Module (DIM)
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Checking the diagnostic trouble codes (DTCs)
- Ignition switch position II.
Click the VCT2000 symbol to read diagnostic trouble codes (DTCs).
Check if diagnostic trouble code CEM-1A41 is detected.
Are there relevant diagnostic trouble codes (DTCs)?
Yes - Replacing the Start Control Unit (SCU)
No - Other fault-tracing
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Other fault-tracing
If no fault has been detected, continue with the following fault tracing procedures.
The fault tracing procedures should be performed in numerical order.
If no fault is detected during each fault tracing procedure, proceed to the next one.
See VIDA for reference information.
1. Check the battery charge status, connections to the battery and chassis and the battery cables for contact resistance and oxidation.
2. Check cables and fuses.
3. Check the starter motor relay.
4. Check the starter motor.
5. Check the start inhibitor function in the gear position sensor, only applies to vehicles with automatic transmission.
Continue - Verification
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Fault-tracing information
- Troubleshoot diagnostic trouble code CEM-6C41 according to DIAGNOSTICS/DIAGNOSTIC TROUBLE CODE.
Continue - DONE
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Checking chassis number
- Check the chassis number according to DIAGNOSTICS/DETAILS.
Is the chassis number lower than 095696 if it is an S40 or lower than 094791 if it is a V50?
Select an alternative.
Yes - Downloading new software
No - Checking the ignition switch
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Downloading new software
- Download new software in Central electronic module (CEM).
Continue - Checking the ignition switch
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Checking the ignition switch
- Click on the VCT2000 symbol.
- Check that the status of the ignition switch corresponds to all key positions.
Compare with table in link below.
Other information
- For table,
Description of switch for start control unit (SCU) Description Of Switch For Start Control Unit (SCU)
Are all key positions OK?
Yes - Verification
No - Checking the ignition switch
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Checking the ignition switch
- Change to another key belonging to the vehicle.
- Click on the VCT2000 symbol.
- Check that the status of the ignition switch corresponds to all key positions.
Compare with table in link below.
If key positions' status cannot be read out, or if the shown key position is invalid, the Start Control Unit (SCU) is probably defective.
Other information
Description of switch for start control unit (SCU) Description Of Switch For Start Control Unit (SCU)
Are all key positions OK?
Yes - Programming new keys
No - Replacing the Start Control Unit (SCU)
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Programming new keys
- Replace the defective key and program a new key for the vehicle.
Continue - Verification
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Checking the connector
- Check that the 3-pin LIN-connector is assembled correctly.
Continue - Checking the diagnostic trouble codes (DTCs)
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Checking the diagnostic trouble codes (DTCs)
- Ignition switch position II.
- Click the VCT2000 symbol to read diagnostic trouble codes (DTCs).
Check if diagnostic trouble code CEM-1A41 is detected.
Are there relevant diagnostic trouble codes (DTCs)?
Yes - Replacing the Start Control Unit (SCU)
No - Fault-tracing information
-------------------------------------------------
Fault-tracing information
- Ignition off.
- Check relevant fuses for Central electronic module (CEM) and Start control module (SCU).
- Check cables and connections to Central electronic module (CEM).
- Check cables and connections to Start control module (SCU).
Other information
- Checking wiring and terminals Checking Wiring And Terminals
Continue - Checking the ignition switch
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Replacing the Start Control Unit (SCU)
Check the cables and connections between the Start Control Unit (SCU) and the Central electronic module (CEM).
Check the fuse for the Start Control Unit (SCU).
If no fault is found on the cables or connections this means that the Start Control Unit (SCU) is defective and must be replaced.
Other information
- Ignition lock Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals
- For further information about the fuses and relays, see the Wiring Diagram.
Continue - Checking the ignition switch
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Checking the ignition switch
- Click on the VCT2000 symbol.
- Check that the status of the ignition switch corresponds to all key positions.
Compare with table in link below.
Other information
- For table,
Description of switch for start control unit (SCU) Description Of Switch For Start Control Unit (SCU)
Are all key positions OK?
Yes - Verification
No - Fault-tracing information
-------------------------------------------------
Replacing the Start Control Unit (SCU)
Check cables and connections to Start control module (SCU).
Check the fuse for the Start Control Unit (SCU).
If no fault is found on the cables or connections this means that the Start Control Unit (SCU) is defective and must be replaced.
Other information
- Ignition lock Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals
- For further information about the fuses and relays, see the Wiring Diagram.
Continue - Checking the ignition switch
-------------------------------------------------
Fault-tracing information
Is the vehicle equipped with a Gas discharge lamp module (GDL)?
See DIAGNOSTICS/NETWORK.
Select an alternative.
Yes - Check LIN diagnostic trouble codes (DTCs)
No - Replacing the central electronic module (CEM)
-------------------------------------------------
Check LIN diagnostic trouble codes (DTCs)
- Disconnect the Gas Discharge Lamp Module (GDL).
The control modules are located by each light. Disconnect the one located on the driver's side.
- Click the VCT2000 symbol to read diagnostic trouble codes (DTCs).
Establish whether relevant LIN diagnostic trouble codes (DTCs) are stored in the control module.
Are there relevant LIN diagnostic trouble codes (DTCs)?
Yes - Fault-tracing information
No - Replacing the central electronic module (CEM)
-------------------------------------------------
Fault-tracing information
- Troubleshoot current LIN diagnostic trouble codes according to DIAGNOSTICS/DIAGNOSTIC TROUBLE CODE.
See wiring diagram as well.
Continue - DONE
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Replacing the central electronic module (CEM)
- Replace Central electronic module (CEM) according to the link below.
Other information
Continue - DONE
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Checking the Steering Column Lock Module (SCL)
Different troubleshooting is available for vehicles with and without steering column lock (SCL). Examine whether the vehicle is equipped with the steering column lock module (SCL) by clicking on the VCT2000 symbol.
Is the vehicle equipped with a steering column lock module (SCL)?
Yes - Checking the Steering Column Lock Module (SCL)
No - Checking the diagnostic trouble codes (DTCs)