Faulty Signal

Faulty signal

Diagnostic trouble code status

Note! When reading off the diagnostic trouble code (DTC) status, other stored diagnostic trouble codes (DTCs) and their status will also be listed.

Read out diagnostic trouble code status. Check status for relevant diagnostic trouble code.





Was the status of the relevant Diagnostic Trouble Code (DTC) displayed as permanent?

Yes - Checking the wiring

No - Intermittent fault

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Checking the wiring
Check the connector for the camshaft position (CMP) sensor. Check for contact resistance and oxidation.
Check the signal line for open circuit, short-circuit to ground and short-circuit to voltage.
Take readings between:
- Control module #A 47 and camshaft sensor #2.
Check the voltage cable for open circuit, short-circuit to ground, and short-circuit to voltage.
Take readings between:
- Control module #A57 and camshaft sensor #1.
Check the ground lead. Check for an open-circuit.
Take readings between:
- Control module #A65 and camshaft sensor #3.
Remedy as necessary.

Other information
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
- To connect the breakout box to the Engine control module (ECM), see: Connecting the breakout box Connecting the Breakout Box
- To access/replace the engine control module (ECM), see Removal, replacement and installation. Engine control module (ECM), replacing Service and Repair
- For information about signals, see Signal specification Signal Description / Specification









Was a fault detected in the cables or terminals?

Yes - Verification

No - Replacing a component

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Replacing a component
Try with new camshaft sensor. Find it using: Location of components Locations

Select Continue. Select Continue.

Continue - Verification

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Intermittent fault





Faulty signal. Intermittent fault

Fault-tracing information
Control module previously registered a fault. The fault is now no longer present.


Continue - DONE

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DONE - DONE

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Verification




Verification

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








- Ignition off.
- Reconnect connectors, reinstall components
- Start the engine.
- Read off the Diagnostic trouble code (DTC) status. Check the status of the relevant Diagnostic Trouble Code (DTC).





Was the status of the relevant Diagnostic Trouble Code (DTC) displayed as intermittent?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - Fault Found

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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 - FAULT-TRACING FAILED

Attempt New Test - Diagnostic trouble code status

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