Signal Too Low. Permanent Fault

Signal too low. Permanent fault

Checking connector








- Ignition off
- Check camshaft position (CMP) sensor connector for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault and loose connections according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults. Check particularly for any damage
- Assemble connector
- Start engine
Read off the camshaft position (CMP) sensor fault status
When the camshaft position (CMP) sensor is tested diagnostic ready should be displayed. If the fault status displays that the fault is not found, it means that the fault was caused by loose connections.









Does the status display fault found?

Yes - Checking cables

No - DONE

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Checking cables
Check the signal cable between control module #A47 (#A47) and camshaft position (CMP) sensor connector #2 for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault. Check power cable between control module #A29 (#A29) and camshaft position (CMP) sensor connector #1 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Hint: With the ignition on and camshaft position (CMP) sensor connector disconnected the voltage between terminal #1 and ground terminal should be approximately 5 V.

Other information
- Connecting the breakout box/accessing the control module, see Connecting the breakout box, B5254T2 Connecting the Test Box.
- For component location on the B52X4 T see Location of components Locations.
- For component location on the B6304 S see Location of components Locations.
- For component location on the B6284 T see Location of components Locations.
- For information about signals on 5-cylinder engines, see Signal specification Signal Specification.
- For information about signals on 6-cylinder engines, see Signal specification Signal Specification.









Continue - Verification

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Verification




Verification

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








- Start the engine.
Read off the fault status of the camshaft position (CMP) sensor.
When the camshaft position (CMP) sensor is tested, diagnostic ready should be displayed.





Does the status display fault found?

Yes - Fault-tracing information

No - Verification complete

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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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Attempt New Test - Checking connector

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