Faulty Signal. Permanent Fault

Faulty signal. Permanent fault

Checking the signal cable
Check the signal cable between engine control module (ECM) #23B (B5252S and Diesel), #27B (B5254S) and combined instrument panel #A26 (breakout box #26) for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault , for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault and for open-circuits according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Other information:
- To connect the breakout box, see Connecting breakout box, Combined instrument panel Connecting the Breakout Box.
- For information about signals, see Connector A, #A1 - #A30 , Connector B, #B1 - #B16 , and Connector D, #D1 - #D5.





Continue - Verification

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Verification




Verification

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








- Ignition off.
- Reinstall connectors, components etc.
Read off engine coolant temperature (ECT).





Is the value OK?

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 - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking the signal cable

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