Signal Too Low

Signal too low

Checking the wiring








- Ignition off
- Disconnect connector D on the rear electronic module (REM).
Check the signal cable. Check for a short-circuit to ground.
For the S60
Take readings between:
- Rear electronic module (REM) terminal #D5 (#5) and terminal #B1 on the connector for the rear left-hand lamp housing
- Terminal #B1 on the connector for the rear left-hand lamp housing and terminal #B3 on the connector for the rear right-hand lamp housing.
For S80
Take readings between:
- Rear electronic module (REM) terminal #D5 (#5) and terminal #4 on the connector for the rear right-hand lamp housing.
For the V70
Take readings between:
- Rear electronic module (REM) terminal #D5 (#5) and terminal #A1 on the connector for the rear left-hand lamp housing
- Terminal #A1 on the connector for the rear left-hand lamp housing and terminal #A5 on the connector for the rear right-hand lamp housing.
For the XC90
Take readings between:
- Rear electronic module (REM) terminal #D5 (#5) and terminal #A1 on the connector for the rear right-hand lamp housing.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting The Breakout Box, Rear Electronic Module (REM)
- Signal specification, Rear electronic module (REM) Signal Specification, Rear Electronic Module (REM)
- 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.
Activate the parking lamp.
Check that the parking lamp is activated.

Is the parking lamp activated?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - 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 the wiring

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