Permanent Fault, Signal Too High

Permanent fault, signal too high

Checking the signal cable








- Ignition off
- Disconnect the combined instrument panel connector
- Ignition on.
Connect a voltmeter between the combined instrument panel connector terminal #B23 (control module side) and ground.





The voltmeter should read 5 V.

OK - Checking the malfunction indicator lamp (MIL)

Not OK - Checking the signal cable

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Checking the malfunction indicator lamp (MIL)
- Disconnect the malfunction indicator lamp (MIL) from the combined instrument panel according to Replacing bulbs in the combined instrument panel Removal and Replacement.
Take an Ohm reading from the malfunction indicator lamp (MIL).





The ohmmeter should read 10-15 ohms.

OK - Defective combined instrument panel

Not OK - Defective malfunction indicator lamp (MIL)

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Defective combined instrument panel
Try a new combined instrument panel according to Driver information module (DIM), installation/removal, component replacement Removal and Replacement.

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





Continue - Verification

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Verification








- Ignition off
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on.
Activate the malfunction indicator lamp (MIL).





Does the malfunction indicator lamp (MIL) function correctly?

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 signal cable

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