FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Signal Too Low






Signal too low

Checking connectors and components
Check the engine control module (ECM) and the system relay connectors. Check for contact resistance. Check for oxidation.
Check the cable between system relay terminal #5 and the engine control module (ECM). Check for an open-circuit.
Remedy as necessary.
Try a new system relay if no fault is found during the above fault-tracing.

Hint: Read off the voltage from the system relay to the engine control module (ECM) by clicking on the VCT2000 symbol.

Other information
- For information about signals for 5 cylinder engines: Signal specification, B5244T5, B5254T2 Signal Description / Specification
- For information about signals for 6 cylinder engines:
- 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 on
- Read off the voltage from the system relay to the engine control module (ECM).
Check that the voltage is correct. The voltage must be approximately 12 V.









Is the voltage correct?

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 connectors and components

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