Signal Too High
Signal too high
Checking interior lighting
- Check that the courtesy lighting door switch is in the door position.
- Ignition off.
Remove the key from the ignition switch.
The courtesy lighting should light.
Does the courtesy lighting light?
Yes - Intermittent fault
No - Checking the connectors
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Checking the connectors
- Check VGLA control module connector and courtesy light connector for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- Check that the courtesy lighting door switch is in the door position.
- Ignition off.
Remove the key from the ignition switch.
The courtesy lighting should light.
Does the courtesy lighting light?
Yes - No Fault Found
No - Checking cables
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Checking cables
- Ignition off.
Check the cable between control module #A24 and roof light #5 for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault and for open-circuits according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Other information:
- For further information about signals and other values, see Signal specification, lock and alarm (VGLA) Signal Specification, Lock and Alarm (VGLA).
- To connect the breakout box, see Connecting the breakout box, lock and alarm (VGLA) Connecting the Breakout Box.
Were any faults found in the cable?
Yes - FAULT FOUND
No - Replacing component
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Replacing component
- Ignition off
Try a new control module according to Replacing the control module Replacing the Control Module.
Continue - Verification
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Verification
Hint: After carrying out the repair, check that the fault has been remedied as follows:
- Ignition off.
- Reinstall connectors, components etc.
- Ignition on.
- Ignition off.
Remove the key from the ignition switch.
The courtesy lighting should light.
Does the courtesy lighting light?
Yes - FAULT FOUND
No - Fault-tracing information
No Fault Found
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Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - Exit fault-tracing
No - Attempt New Test
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FAULT-TRACING FAILED - No Fault Found
Attempt New Test - Checking interior lighting
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Intermittent fault
Check the cable between control module #A24 and roof light #5 for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Other information:
- For further information about signals and other values, see Signal specification, lock and alarm (VGLA) Signal Specification, Lock and Alarm (VGLA).
- To connect the breakout box, see Connecting the breakout box, lock and alarm (VGLA) Connecting the Breakout Box.
Continue - Fault-tracing information
No Fault Found
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Fault-tracing information
Information
Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).
Do you want to view the information again?
Yes - Attempt New Test
No - FAULT FOUND
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Attempt New Test - Checking interior lighting
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