Signal Too Low

Signal too low

Status check
If the fuel gauge displays a full tank it indicates that the fault is permanent.

Does the fuel gauge display fuel tank?

Yes - Checking components and wiring

No - Checking components and wiring

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Checking components and wiring

Hint: If the cable and the combined instrument panel are fault free the voltage between terminals A and C on the fuel level sensor connector should be approximately 5 V.

Check the signal cable between the fuel level sensor #A and the combined instrument panel #B17 (#A47) for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Remedy as necessary.

Other information:
- To connect the breakout box,
- To access / replace the combined instrument panel, see Driver information module (DIM), installation/removal, component replacement Driver Information Module (DIM), Installation/Removal, Component Replacement.
- To access / replace the fuel level sensor,
- For information about signals, see Signal specification Signal Specification.













Select Continue.

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.
Check that the fuel gauge is within its permitted range.

Is the fuel gauge within its permitted range?

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 components and wiring

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Checking components and wiring

Hint: If the cable and the combined instrument panel are fault free the voltage between terminals A and C on the fuel level sensor connector should be approximately 5 V.

Check the signal cable between the fuel level sensor terminal A and the combined instrument panel terminal B17 (terminal A47) for an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.
Remedy as necessary.

Other information:
- To connect the breakout box,
- To access / replace the combined instrument panel, see Driver information module (DIM), installation/removal, component replacement Driver Information Module (DIM), Installation/Removal, Component Replacement.
- To access / replace the fuel level sensor,
- For information about signals, see Signal specification Signal Specification.













Select Continue.

Continue - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Checking components and wiring

FAULT FOUND - DONE

DONE - DONE

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