INSPECTION PROCEDURE C-5: The Power Window Timer Function does not work Normally.

caution

Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM

If the power window timer does not work normally, a malfunction of the power window main switch or ETACS-ECU is suspected. Also, the power window timer function may have been set to "0 second" with the customisation function.

PROBABLE CAUSES

Malfunction of the door switch (driver’s side)
Malfunction of the power window main switch
Malfunction of ETACS-ECU
Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE

STEP 1. Check the customise function.

Check that either of the followings other than "0 second" is set for "Power window key off timer" with the customisation function.

30 seconds
180 seconds
600 seconds

Q. Is the check result normal?

Go to Step 2.

Set either of the followings other than "0 second" for "Power window key off timer" with the customisation function (Refer to

STEP 2. Check the power supply system.

With the ignition switch in the LOCK (OFF) position, check if the following function operates normally:

Hazard warning lamp

Q. Is the check result normal?

Go to Step 3.

Refer to GROUP 54A - Malfunction of ETACS-ECU power supply circuit

STEP 3. M.U.T.-III data list

Check the signals related to the power window operation.

Turn the ignition switch to the ON position.
Close the driver’s door.

Item No.	Item name	Normal condition
254	IG Voltage	Battery voltage
256	Dr door ajar switch	Close

OK: Normal conditions are displayed for all the items.

Q. Are the check result normal?

YES <Normal conditions are displayed for all the items.>

: Go to Step 4.

NO <Normal condition is not displayed for item No. 254.> : Refer to GROUP 54A - inspection procedure 2: "The ignition switch (IG1) signal is not received

."

NO <Normal condition is not displayed for item No. 256.> : Refer to GROUP 54A - inspection procedure 5: "The front door switch (driver’s side) signal is not received

STEP 4. Retest the system.

Check that the power window timer function works normally.

Q. Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction

Replace the power window main switch.