Part 3
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Checking the Steering Column Lock Module (SCL)
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 - No Fault Found
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Checking locked steering wheel lock
- Remove the key from the ignition switch.
The steering column lock must be locked. It must be impossible to turn the steering wheel.
Is the function OK?
Yes - Checking unlocked steering wheel lock
No - Checking the ignition switch
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Checking the ignition switch
- Click on the VCT2000 symbol.
- Check the status for the switch for key-in.
Is the function OK?
Yes - Checking unlocked steering wheel lock
No - Replacing the Start Control Unit (SCU)
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Checking unlocked steering wheel lock
- Insert the key in the ignition switch.
The steering column lock must be unlocked. It must be possible to turn the steering wheel.
Is the function OK?
Yes - Checking text message in Driver Information Module (DIM)
No - Checking CAN low-speed net
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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, the ignition or steering column lock.
Is there a relevant text message?
Yes - Text message in the Driver Information Module (DIM)
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,
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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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, the ignition or steering column lock.
Is there a relevant text message?
Yes - Text message in the Driver Information Module (DIM)
No - Checking the ignition switch
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Text message in the Driver Information Module (DIM)
Hint: By holding in the trip odometer reset button for 10 seconds the text ID for the relevant text message is displayed in the Driver Information Module (DIM).
- Turn the ignition key to position II.
- Depress the trip odometer reset button.
Hold the button depressed until the relevant text ID is displayed in the Driver Information Module (DIM).
- Scroll between the messages in the Driver Information Module (DIM) by pressing the READ button.
Search for the text message related to the key, the ignition or steering column lock.
- Select an alternative below
The relevant text ID:
1. Text ID 162.
2. Text ID 166.
3. Text ID 251.
4. Text ID 252.
5. Text ID 165.
Select the desired alternative above.
1 - Check the diagnostic trouble codes (DTCs) for text ID 162
2 - Check diagnostic trouble codes (DTCs) for text ID 166
3 - Check diagnostic trouble codes (DTCs) for text ID 251
4 - Check load on steering column lock
5 - Check load on steering column lock
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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 diagnostic trouble codes (DTCs) for text ID 166
Click on the VCT2000 symbol.
Check if any of the following diagnostic trouble codes have been generated in the vehicle.
Remedy as necessary.
- CEM-6C50.
- CEM-6C52.
Other diagnostic trouble codes that may be stored in the control modules in the vehicle are not relevant for this text message.
Continue - DONE
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Check diagnostic trouble codes (DTCs) for text ID 251
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-6C47. CEM-6C53. CEM-6C56.
2. CEM-6C51.
3. CEM-6C56. CEM-DD10 (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 - Replacing the Steering Column Lock Module (SCL)
2 - Downloading new software
3 - Fault-tracing information
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Check load on steering column lock
There are no relevant diagnostic trouble codes (DTCs) for text ID 252 and 165.
This text message means that the steering column lock is under load.
- Remove the key from the ignition switch.
- Turn the steering wheel 90° to the right.
- Insert the key in the ignition switch.
- Check the function of the steering column lock.
Is the function OK?
Yes - Fault-tracing information
No - Replacing the Steering Column Lock Module (SCL)
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Fault-tracing information
The malfunction was caused by the steering column being loaded.
The fault has now been remedied.
Continue - Verification
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Replacing the Steering Column Lock Module (SCL)
Check the cables and connections between the Steering Column Lock Module (SCL) and the Central electronic module (CEM).
If no fault is found on the cables or connections this means that the Steering Column Lock Module (SCL) is defective and must be replaced.
Other information
- Steering lock Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals
Continue - Verification
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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 - Fault-tracing information
No - Checking the wiring
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Checking the wiring
Click on the VCT2000 symbol.
Find out if the diagnostic trouble code (DTC) CEM-1A41 (A) is stored.
If there is a diagnostic trouble code (DTC) this means that the Start Control Unit (SCU) is defective and must be replaced.
Check the cables and connections between the Start Control Unit (SCU) and the Central electronic module (CEM).
Check the fuse for the ignition switch in the engine compartment fusebox.
Remedy as necessary.
Other information
- Connecting the breakout box Connecting The Breakout Box, Central Electronic Module (CEM)
- For information about fuses, see the wiring diagram.
- Ignition lock Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals
Continue - Verification
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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
Other fault-tracing
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 locked steering wheel lock
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 locked steering wheel lock
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Checking CAN low-speed net
Check if CAN low-speed net is live by testing if Central electronic module (CEM) answers.
Read out the hardware number from Central electronic module (CEM) (40) by going in under SOFTWARE/ADVANCED.
Does the CAN-net work?
Yes - Checking text message in Driver Information Module (DIM)
No - Other fault-tracing
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Other fault-tracing
- Troubleshoot CAN low-speed net for short-circuiting.
Use general troubleshooting, see INFORMATION/TROUBLESHOOTING/GENERAL DIAGNOSTICS AND TESTS.
Other information
Continue - DONE
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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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Downloading new software
- Download new software in Steering column lock module (SCL).
Continue - Verification
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Fault-tracing information
- Troubleshoot diagnostic trouble code CEM-DD 10 according to DIAGNOSTICS/DIAGNOSTIC TROUBLE CODE.
Continue - DONE
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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
------------------------
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
- For table,
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
------------------------
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
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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)
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