L0630

CODE NO. L0630: S/R POWER SUPPLY

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














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). 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 Harness Connector Inspection 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.