Faulty Signal

Faulty signal

Checking status




- Ignition on.
Check whether the fault is permanent or intermittent by reading the signal from the fuel level sensor (via the central electronic module (CEM)) and checking that it is within its permitted range. Also check that it moves if the car is rocked gently, before stabilizing at a reasonable level.
An incorrect signal indicates that the fault is permanent. The fault is intermittent if the signal is within the permitted range.

Hint: If the tank is completely full, their may be no noticeable change in level if the car is rocked.









Continue - Checking connector

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Checking connector
Check the fuel level sensor connector and terminals. Check for contact resistance. Check for oxidation.
Remedy as necessary.

Other information
- Level sensor fuel tank Level Sensor Fuel Tank, Replacing
- 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.
Read off the signal from the fuel level sensor (via the central electronic module (CEM)).
Check that the signal is within its permitted range. The level should change if the car is rocked gently, before stabilizing to a reasonable level.
A reasonable signal indicates that the fault has been remedied.

Hint: If the tank is completely full, their may be no noticeable change in level if the car is rocked.









Is the signal within its permitted range?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - 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 - FAULT-TRACING FAILED

Attempt New Test - Checking status

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