Signal Too Low

Signal too low

Checking the wiring




- Ignition off.
Check the cable between the central electronic module (CEM) and the left-hand turn signal lamps. Check for an open-circuit. Check for a short-circuit to ground.
Also check the intermediate connectors.
For S60 and V70
Take readings between:
- Central electronic module (CEM) terminal #B31 (#31) and left front door turn signal lamp terminal #2
- Central electronic module (CEM) terminal #B31 (#31) and left turn signal lamp terminal #1.
For S80
Take readings between:
- Central electronic module (CEM) terminal #B31 and left front door turn signal lamp terminal #2
- Central electronic module (CEM) terminal #B31 and left turn signal lamp terminal #2.
For the XC90
Take readings between:
- Central electronic module (CEM) terminal #A12 (#12) and left front door turn signal lamp terminal #2
- Central electronic module (CEM) terminal #B31 (#31) and left turn signal lamp terminal #1.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- Signal specification Pinout Values and Diagnostic Parameters
- Location of components Locations
- Checking wiring and terminals Checking Wiring And Terminals


Continue - Verification

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Verification




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 turn signal lamps.
Check that the turn signal lamps are activated.

Are the turn signal lamps 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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the wiring

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