L0632

CODE NO. L0632: S/R Switch fail

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










COMMENTS ON TROUBLE SYMPTOM

If each switch (UP, OPEN, CLOSE/DOWN) of the sunroof switch is in the ON status for 60 seconds, the sunroof motor assembly will set the diagnostic trouble code No. L0632.

PROBABLE CAUSES

- Malfunction of the sunroof motor assembly
- Malfunction of the sunroof switch
- Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE

STEP 1. Check sunroof switch connector D-05 and sunroof motor assembly D-06 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q. Are sunroof switch connector D-05 and sunroof motor assembly D-06 in good condition?

YES Go to Step 2.
NO Repair or replace the damaged component(s). Harness Connector Inspection. Check that the sunroof works normally.
STEP 2. Check the wiring harness between sunroof switch connector D-05 (terminals No. 3, 5, 6) and sunroof motor assembly connector D-06 (terminals No. 4, 5, 10).

Q. Is the wiring harness between sunroof switch connector D-05 (terminal 3, 5, 6) and sunroof motor assembly connector D-06 (terminal No. 4, 5, 10) in good condition?

YES Go to Step 3.
NO The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Check that the sunroof works normally.
STEP 3. Diagnostic trouble code recheck

Replace the sunroof switch. 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.