INSPECTION PROCEDURE B-2: Any of The Sunroof Switch Positions is Defective.


caution Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.


COMMENTS ON TROUBLE SYMPTOM



POSSIBLE CAUSES



  • Malfunction of the sunroof switch
  • Malfunction of the sunroof motor assembly (sunroof-ECU)
  • Damaged harness wires and connectors

DIAGNOSTIC PROCEDURE


STEP 1. SWS monitor data list.



<Selected item> SUNROOF OPE.
  • Ignition switch: ON
  • Operate the sunroof switch.
Item No.
 Item name
 Normal condition
Item 72
 S/R ECU ACK
 INPUT CHECK (only momentarily when switch is operated)
OK: Normal condition is displayed.

Q. Is the check result normal?





STEP 2. Retest the system.



Q. Is the check result normal?