Signal Too Low

Signal too low

Checking the status




- Ignition on
- Read off the oil level sensor signal.
Check that all three values for oil level, oil temperature and oil grade are between 17-83%. The fault is intermittent at the moment if all the values are OK.






Continue - Checking the wiring

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Checking the wiring
Check the signal cable between engine control module (ECM) terminal #A40 and oil level sensor terminal #1. Check for a short-circuit to ground.

Hint: With the ignition on, the voltage between terminals #2 and #3 must be 5 V, with the reading taken at the oil level sensor connector.

Try a new oil level sensor if no fault is found and the fault is permanent.
Remedy as necessary.

Other information:
- Checking wiring and terminals Checking Wiring And Terminals
- To connect the breakout box, see Connecting the breakout box, B5244T5, B5254T2 Connecting the Breakout Box
- For information about signals, see Signal specification Signal Description / Specification
- To access or replace the oil level sensor see Oil level sensor, replacing Service and Repair.










Continue - Verification

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Verification




Verification

Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reconnect the connectors, reinstall components etc.
- Ignition on
- Read off the oil level sensor signal.
Check that all three values for oil level, oil temperature and oil grade are between 17-83%. The fault has been remedied if all the values are OK.





Are these values OK?

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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the status

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