Faulty Signal. Permanent Fault
Faulty signal. Permanent fault
Checking the connectors
Check the engine control module (ECM) and transmission control module (TCM) connectors. Check for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check for loose or damaged terminal pins.
Reconnect the connectors.
Start the engine.
Read off the status of the diagnostic trouble code (DTC).
Är statusen intermittent?
Yes - Verification
No - Checking wiring
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Checking wiring
Check the signal cables between engine control module (ECM) terminals 57 and 27 and transmission control module (TCM) terminals 14 and 27. Check for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault. Check for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault. Check for a short-circuit to each other and for open-circuits according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault. Remedy if necessary.
If no problem is found in above troubleshooting, try changing Transmission control module (TCM).
Continue - Verification
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Verification
- Start the engine.
Read off the status of the diagnostic trouble code (DTC).
Är statusen intermittent?
Yes - FAULT FOUND
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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FAULT-TRACING FAILED - No Fault Found
Attempt New Test - Checking the connectors
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