Signal Too Low

Signal too low

Checking the oil level and replacing the component

Note! If diagnostic trouble codes (DTCs) ECM-540X and ECM-550X are stored at the same time, codes ECM-540X must be remedied first.

- Check that the oil level in the engine is not too low. Ensure that the level is correct.

Hint: This diagnostic trouble code (DTC) may be stored if the engine oil is significantly mixed with fuel or coolant for example.

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

Other information:
- To connect the breakout box / access the control module, see Connecting the breakout box, B5244T5, B5254T2 Connecting the Breakout Box
- For information about signals on 5 cylinder engines, see Signal specification Signal Description / Specification
- For information about signals on 6 cylinder engines, see Signal specification Signal Description / Specification
- Oil level sensor, replacing Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals.






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.
- Start the engine and allow to idle for approximately 1 minute
- Read off the status of the diagnostic trouble code (DTC).
The fault has been remedied if status of the diagnostic trouble code (DTC) is intermittent.





Is the status of the diagnostic trouble code (DTC) intermittent?

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 oil level and replacing the component

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