Signal Too Low

Signal too low

Checking the wiring








- Ignition off.
If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults can be caused by interference at start up or can be a different type of fault which occurs on different occasions. The fault is evaluated depending on how it occurs.
Check the cable between the central electronic module (CEM) and the switch for the hazard warning signal flasher. Check for a short-circuit to ground.
Take readings between:
- Central electronic module (CEM) terminal #D14 (14) and terminal #1 on the switch for the hazard warning signal flasher.
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
- Switch hazard warning signal flasher, replacing Switch, Hazard Warning Signal Flasher, Replacing
- Checking wiring and terminals Checking Wiring And Terminals

Was a fault detected?

Yes - Verification

No - Checking over temperature

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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.
Switch on the hazard warning signal flasher. Check that the switch is working.

Is the function OK?

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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Checking over temperature
Turn on the hazard warning signal flasher to see if the switch works.
If the switch does not work, the fault may be due to overheating.
Wait approximately 10 minutes. Check whether the fault was due to overheating.
Remedy as necessary.

Other information
- Switch hazard warning signal flasher, replacing Switch, Hazard Warning Signal Flasher, Replacing


Continue - Verification

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