INSPECTION PROCEDURE D-5: The power window timer function does not work normally.

CAUTION

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

OPERATION

The ETACS-ECU operates this function in accordance with the input signals below.

Ignition switch (IG1)

Driver's door switch

COMMENTS ON TROUBLE SYMPTOM

If the power window timer function does not work normally, these input signal circuit(s), the power window main switch or the ETACS-ECU may be defective.

POSSIBLE CAUSES

Malfunction of the front door switch (RH)

Malfunction of the power window main switch

Malfunction of the ETACS-ECU

Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the power supply circuit.

When the ignition switch is turned to the LOCK (OFF) position, check if the hazard warning lamps illuminate.

Q: Is the check result normal?

YES: Go to Step 2

.
NO: Refer to inspection procedure A-2 "Check the battery power supply circuit to the ETACS-ECU

Step 2. Pulse check

Check the input signals below, which are related to the power window timer function.

System switch	Check conditions
Ignition switch (IG1)	When turned from ACC to ON
Driver's door switch	When the driver's door is opened
Power window main switch	When turned from off to on

OK: The MUT-II/III sounds or the voltmeter needle fluctuates.

Q: Are the check result normal?

All the signals are received normally.: Go to Step 3

.
The ignition switch (IG1) signal is not received.: Refer to inspection procedure P-2 "The ignition switch (IG1) signal is not received

."
All the door switch signals are not received.: Refer to inspection procedure P-4 "The driver's door switch signal is not received

."
The power window main switch signal is not received.: When the power window main switch is operated, the switch signals are not received (Refer to

Step 3. Check the SWS monitor customized function.

Use the SWS monitor customize function to confirm that "KEY-OFF TMR T" is set to other than "W/O FUNCTION".

CAUTION

The SWS monitor must be used in order to confirm and change that setting. Use the SWS monitor to confirm and/or change the customized function.

Q: Is the check result normal?

YES: Go to Step 4

.
NO: Use the SWS monitor customize function to se the "KEY-OFF TMR T" to other than "W/O FUNCTION" (Refer to GROUP 54C - Adjustment function

Step 4. Retest the system.

After the power window main switch is replaced, check that the power window timer function works normally.

Replace the power window main switch.

Check that the power window timer function works normally.

Q: Is the check result normal?

YES: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction

).
NO: Replace the ETACS-ECU.