Permanent Fault, Signal Missing

Permanent fault, signal missing

Checking the terminal








- Ignition off
- Disconnect the combined instrument panel connector
- Ignition on.

Connect a voltmeter between the combined instrument panel connector terminal B23 (engine control module (ECM) side) and ground.









The voltmeter should read 5 V.

OK - Checking the malfunction indicator lamp (MIL)

Not OK - Checking wiring and terminals

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Checking the malfunction indicator lamp (MIL)




- Ignition on.
Connect a voltmeter between the combined instrument panel terminal B23 and ground.









The voltmeter should read battery voltage.

OK - Loose connections

Not OK - Defective malfunction indicator lamp (MIL)

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Loose connections
The cause of the diagnostic trouble code (DTC) has been loose connections in the combined instrument panel and/or control module connectors.

Continue - Verification

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Checking wiring and terminals
Check the cable between engine control module (ECM) terminal 34 and combined instrument panel connector terminal B23 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.













Continue - Verification

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Defective malfunction indicator lamp (MIL)
Replace the malfunction indicator lamp (MIL) according to Replacing bulbs in the combined instrument panel Removal and Replacement.

Continue - Verification

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Verification








- Ignition off
- Reconnect the connectors, reinstall components etc.
- Connect VCT 2000
- Ignition on.
Activate the malfunction indicator lamp (MIL) according to Description of activations Description Of Activations.





Does the malfunction indicator lamp (MIL) go out on activation?

Yes - FAULT FOUND

No - No Fault Found 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 terminal

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