L0634

CODE NO. L0634: S/R Sensor signal

CAUTION: Before replacing the ECU, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM
If one of two signals from the sunroof lid glass position detection sensor cannot be detected, the sunroof motor assembly will set the diagnostic trouble code No. L0634.

PROBABLE CAUSES
- Malfunction of the sunroof motor assembly

DIAGNOSTIC PROCEDURE

Diagnostic trouble code recheck
Recheck if the diagnostic trouble code is set.

1. Erase the diagnostic trouble code.
2. Turn the ignition switch from the LOCK (OFF) position to the ON position.
3. Check if the diagnostic trouble code is set.

Q: Is the diagnostic trouble code set?

YES: Replace the sunroof motor assembly.

NO: The procedure is complete.