L0640

CODE NO. L0640: S/R Over load

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

COMMENTS ON TROUBLE SYMPTOM

If the over load (foreign material pinched) is detected consecutively five times during a sunroof operation, ETACS-ECU will set the diagnostic trouble code No. L0640.

PROBABLE CAUSES

- Malfunction of the sunroof motor assembly

DIAGNOSTIC PROCEDURE

STEP 1. Check the sunroof fully closed position

(1)Carry out the learning procedures of the sunroof fully closed position. Refer to Programming and Relearning.

(2)Recheck if the diagnostic trouble code is set.

.....Erase the diagnostic trouble code.

.....Turn the ignition switch from the LOCK (OFF) position to the ON position.

.....Check if the diagnostic trouble code is set.

Q. Is the check result normal?

YES The procedure is complete.
NO Go to Step 2.
STEP 2. 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.