Signal Too Low

Signal too low

Checking the wiring








- Ignition on.
Click on the symbol for VCT2000 to read out the voltage from the fuel level sensor.
For information on voltage levels for different fuel tanks, see component specification.
Check the power cable for a short-circuit to ground.
Take readings between:
- Central electronic module (CEM) terminal #F5 (#5) and right-hand fuel level sensor connector terminal #2
- Central electronic module (CEM) terminal #F7 (#7) and right-hand fuel level sensor connector terminal #4.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- Signal specification Signal Description, Central Electronic Module (CEM)
- Component specification [1][2]Body Control Systems
- Control module relay box passenger compartment Service and Repair
- 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 sensor signal by clicking the VCT2000 symbol.
Check that the value is between 0 and 5 volts.





Is the value OK?

Yes - Troubleshooting procedure complete

No - 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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