Faulty Signal

Faulty signal

Checking components and wiring
Check that the bulb in the cargo compartment lighting is intact.
Check the connectors on the rear electronic module (REM) and cargo compartment lighting. Check for contact resistance and oxidation. Check for loose connections.

Hint: The voltage between terminals #2 and #4 in the connector for the cargo compartment lighting must be approximately battery voltage when the trunk lid is open.

Check the cable between rear electronic module (REM) connector terminal #2E (#B22) and cargo compartment lighting terminal #2. Check for an open-circuit. Check for a short-circuit to ground.
Check the cable between cargo compartment lighting terminal #4 and ground. Check for an open-circuit. Check for a short-circuit to supply voltage.
Remedy as necessary.

Other information:
- To access the rear electronic module, see Relay/fuse box cargo compartment/Rear electronic module (REM), replacing Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing
- To connect the breakout box, see Connecting the breakout box Connecting Breakout Box, Rear Electronic Module (REM)
- For information about signals, see Signal specification Signal Specification
- See the wiring diagram for further information about the ground terminal
- Checking wiring and terminals Checking Wiring and Terminals.









Continue - Verification

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Verification




Verification

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








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on.
Check that the cargo compartment lighting lights when the trunk lid is opened.

Does the cargo compartment lighting light?

Yes - Troubleshooting procedure complete

No - Fault-tracing information

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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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Attempt New Test - Checking components and wiring

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