Signal Missing. Permanent Fault

Signal missing. Permanent fault

Checking the relay




- Ignition off.
Check that relay 2/29 is correctly installed.
Check the relay terminals.
Remedy as necessary.

Other information
- To access and replace the relay, see Central electronic module (CEM), replacing Central Electronic Module (CEM), Replacing.





Was a fault detected?

Yes - Verification

No - Checking the signal cable

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Checking the signal cable




- Ignition off
- Disconnect the connector from the central electronic module (CEM)
- Disconnect the connector from the gear selector assembly.
Check the signal cable between central electronic module (CEM) connector terminal #1D and gear selector assembly connector terminal #3. Check for an open-circuit.
Remedy as necessary.

Other information:
- To access or replace the central electronic module (CEM), see Central electronic module (CEM), replacing Central Electronic Module (CEM), Replacing
- To access and replace the gear selector assembly, see Gear selector lever assembly, replacing Gear Selector Lever Assembly, Replacing
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- For information about signals, see Signal specification Pinout Values and Diagnostic Parameters
- Checking wiring and terminals Checking Wiring And Terminals.









Is the signal cable OK?

Yes - Replacing the component

No - Verification

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Replacing the component
Try a new gear selector assembly (automatic transmission) or solenoid (manual transmission).

Other information
- To access and replace the gear selector assembly, see Gear selector lever assembly, replacing Gear Selector Lever Assembly, Replacing
- To access and replace the relay, see Solenoid back-up (reverse) inhibitor, replacing Solenoid Back-Up (Reverse) Inhibitor, Replacing.


Continue - Verification

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Verification




Verification

Verification

Hint: After the repair it is necessary to check that the fault has been rectified.








- Ignition off.
- Connect the connectors, install the components, etc.
- Ignition on.
Check that diagnostic trouble code status changes from permanent to intermittent.





Is the diagnostic trouble code status intermittent?

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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - No Fault Found

Attempt New Test - Checking the relay

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