L0630

DIAGNOSTIC TROUBLE CODE PROCEDURES

CODE NO. L0630: S/R POWER SUPPLY

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

Sunroof Motor Assembly Power Supply Circuit (Part 1):

Sunroof Motor Assembly Power Supply Circuit (Part 2):

COMMENTS ON TROUBLE SYMPTOM
When the terminal voltage of the sunroof motor assembly is 8 V or less, or 18 V or more, and if it continues for 60 seconds, the sunroof motor assembly will set the diagnostic trouble code No. L0630.

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

DIAGNOSTIC PROCEDURE

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

Q: Is sunroof switch connector D-06 in good condition?

YES: Go to Step 2.

NO: Repair or replace the damaged component(s). Refer to general (electrical), Harness Connector Inspection. Check that the sunroof works normally.

STEP 2. Check the wiring harness between sunroof motor assembly connector D-06 (terminal 6) and fusible link (34).

NOTE: Also check ETACS-ECU connectors C-309 and C-316 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If ETACS-ECU connectors C-309 and C-316 is damaged, repair or replace the damaged component(s) as described in general (electrical), Harness Connector Inspection.

Q: Is the wiring harness between sunroof motor assembly connector D-06 (terminal 6) and fusible link (34) 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
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.