INSPECTION PROCEDURE D-5: The power window timer function does not work normally. <except vehicles for Argentina>

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

Passenger's door switch <vehicles for Australia>

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 front door switch (LH)

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 ETACS-ECU battery power supply circuit

Step 2. Pulse check

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

System switch	Check condition
Ignition switch (IG1)	When turned from ACC to ON
Driver's door switch	When the driver's door is opened
Passenger's door switch <vehicles for Australia>	When the Passenger's door is opened

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

Q: Is 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

."
The driver’s door switch signals are not received.: Refer to Inspection Procedure P-4 "The driver's door switch signal is not received <LH drive vehicles>

." Refer to Inspection Procedure P-4 "The driver's door switch signal is not received <RH drive vehicles>

."
The passenger’s door switch signals are not received.: Refer to Inspection Procedure P-20 "The passenger’s door switch signal is not received

. <vehicles for Australia>"

Step 3. Connector check: E-05 power window main switch connector

Q: Is the check result normal?

YES: Go to Step 4

.
NO: Repair the connector.

Step 4. Check the power window main switch.

Refer to GROUP 42 - Door

Q: Is the check result normal?

YES: Go to Step 5

.
NO: Replace the power window main switch.

Step 5. Retest the system.

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.