Part 1

Check the start system

Fault-tracing information
- This fault-tracing only applies to vehicles with the symptom Starter motor not running.
- If the starter motor turns but the engine does not start, finish this fault-tracing.

Do you want to continue with this procedure?

Yes - Checking the Steering Column Lock Module (SCL)

No - Exit fault tracing

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Checking text message in Driver Information Module (DIM)




- Turn the ignition key to position I.
- Scroll between the messages in the Driver Information Module (DIM) by pressing the READ button.
Search for the text message related to the key or ignition.

Is there a relevant text message?

Yes - Check the diagnostic trouble codes (DTCs) for text ID 162

No - Checking text message in Driver Information Module (DIM)

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Checking text message in Driver Information Module (DIM)




- Turn the ignition key to position II.
- Scroll between the messages in the Driver Information Module (DIM) by pressing the READ button.
Search for the text message related to the immobilizer.

Is there a relevant text message?

Yes - Check the Steering Wheel Module (SWM)

No - 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.
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
- For table, see: Description of switch for start control unit (SCU) Description of Switch for Start Control Unit (SCU)





Are all key positions OK?

Yes - Checking the diagnostic trouble codes (DTCs)

No - Replacing the Start Control Unit (SCU)

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Check the diagnostic trouble codes (DTCs) for text ID 162




Note that this text message is displayed together with:
- Incorrect key
- New key.
- Replace the central electronic module (CEM).
Click on the VCT2000 symbol.
Check if any of the following diagnostic trouble codes have been generated in the vehicle.
Remedy as necessary.
1. CEM-6C41.
2. CEM-6C42.
3. CEM-6C43.
4. CEM-DD11 (A).
Other diagnostic trouble codes that may be stored in the control modules in the vehicle are not relevant for this text message.





Select alternative according to above.

1 - Fault-tracing information
2 - Checking chassis number
3 - Checking chassis number
4 - Checking the connector

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Check the Steering Wheel Module (SWM)








- Ignition off.
- Disconnect the connector for the steering wheel module (SWM).
- Remove the key from the ignition switch.
- Insert the key in the ignition switch.
Turn the ignition key to start position (key position III).





Can the vehicle be started?

Yes - Replacing the Steering Wheel Module (SWM)

No - Checking the diagnostic trouble codes (DTCs)

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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 - Verification

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Other fault-tracing





Conditions
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.

Checking the battery and connections
Select alternative 1 to check the battery and connections.

Checking the starter motor relay
Select alternative 2 to check the starter motor relay.

Checking the starter motor
Select alternative 3 to check the starter motor.

Checking the park / neutral position (PNP) function in the gear position sensor (only vehicles with automatic transmission)
Select alternative 4 to check the immobilizer function in the gear position sensor.

Exit fault-tracing
Select alternative 5 to exit fault-tracing.
This alternative must only be selected if fault-tracing is carried out for all other alternatives.

Select an alternative.

1 - Checking the battery and connections
2 - Checking the starter motor relay
3 - Checking the starter motor
4 - Checking the park / neutral position (PNP) function in the gear position sensor (only vehicles with automatic transmission)
5 - Exit fault-tracing

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Checking the battery and connections





Note! The test requires that no diagnostic trouble codes are stored for the symptom.

Check the battery cables at the battery, body and starter motor.
If the connections are not adequately tightened the battery cannot deliver sufficiently high current to the starter motor.
Remedy as necessary.





Continue - Checking the battery

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Checking the battery
Troubleshoot and test the battery.
Check that the battery has the correct performance for the model in question.
If performance is not right, try with a new battery.

Note! If the vehicle is equipped with a battery that has another rating than the recommended but is okay, do not replace battery.

Remedy as necessary.

Other information
- Fault-tracing and testing the battery Fault-Tracing and Testing the Battery
- Battery, charging Battery, Charging





Was a fault detected?

Yes - Verification

No - Other fault-tracing

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Verification




Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off.
- Reinstall the connectors, components etc.
- For vehicles with automatic transmission:
The gear selector shall be in position P or N.
- For vehicles with manual transmission:
The gear lever shall be in neutral position.
- Parking brake applied.
- The battery shall be fully charged.
Turn the ignition key to start position (key position III).
The starter motor must run in starting position.

Does the starter motor work?

Yes - Troubleshooting procedure complete

No - Other fault-tracing

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Checking the starter motor relay





Note! The test requires that the battery is trouble-free and that no relevant diagnostic trouble codes are stored for the symptom.

- The signal chain to the starter motor can be checked quickly by short-circuiting the relay connections to the starter motor.
- For vehicles with automatic transmission:
The gear selector shall be in position P or N.
- For vehicles with manual transmission:
The gear lever shall be in neutral position.
- Parking brake applied.

Warning! In case of short-circuiting, the starter motor shall run. Be careful.

Caution! Use two cables with suitable cable terminal when short-circuiting so that the spark does not damage the relay socket.

Ignition off.
Remove the starter motor relay and short-circuit the relay socket #3(30) with #5(87), that is, the relay circuit.

Note! Do not bridge directly in the relay socket. Contacts may be damaged.

If the starter motor runs now then there is no malfunction of the power part in the circuit.

Other information
- For further information about the fuses and relays, see the Wiring Diagram.





Does the starter motor run when the relay is short-circuited?

Yes - Checking relay and start relay control signal

No - Checking the wiring

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