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


Current trouble
  • If the terminal voltage at the sunroof ECU has been 8 V or lower, or 18V or higher for 60 seconds, ETACS-ECU sets the diagnosis code No. L0630.

PROBABLE CAUSES



  • Malfunction of the sunroof motor assembly
  • Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE


STEP 1. Check of short to power supply, short to earth, and open circuit in IG1 line between sunroof motor assembly connector and fusible link.


Q. Is the check result normal?





STEP 2. Diagnosis code recheck



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

Q. Is the diagnosis code set?