Inspection Procedure B-4: Relevant Power Window(s) do not Work by means of the Front Passenger’s Power Window Sub Switch and Rear Power Window Sub Switches. <LH drive vehicles>

caution

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

COMMENTS ON TROUBLE SYMPTOM

If the front passenger’s or rear power window <Double cab> does not work by means of the respective power window sub switch, the power window sub switch or the power window motor may be defective.

PROBABLE CAUSES

Malfunction of the power window sub switch (front: RH), power window sub switch (rear: RH) or power window sub switch (rear: LH)
Malfunction of the power window motor (front: RH), power window motor (rear: RH) or power window motor (rear: LH)
Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check the power window main switch.

Check that the power window lock switch is turned off.

Q. Is the check result normal?

	Go to Step 2.

	Turn off the power window lock switch.

STEP 2. M.U.T.-III diagnosis code.

When the ignition switch is turned to the "ON" position, check that the ETACS-ECU does not set the diagnosis code.

Q. Is the diagnosis code set?

	Refer to .

	Go to Step 3.

STEP 3. Determine a trouble spot.

Q. Which power window does not work?

	Front passenger’s door : Go to Step 4.

	Rear right door <Double cab> : Go to Step 12.

	Rear left door <Double cab> : Go to Step 20.

STEP 4. Connector check: E-26 power window sub switch (front: RH) connector

Q. Is the check result normal?

Go to Step 5.

Repair the connector.

STEP 5. Check the power window sub switch (front: RH)

Check that the power window sub switch (front: RH) works normally. Refer to

Q. Is the check result normal?

	Go to Step 6.

	Replace the power window sub switch (front: RH).

STEP 6. Voltage measurement at the E-36 power window sub switch (front: RH) connector.

(1)Disconnect the connector, and measure at the wiring harness side.
(2)Turn the ignition switch to the ON position.

(3)Check the voltage between the E-26 power window sub switch (front: RH) connector terminal No.4 and body earth.
OK: System voltage

Q. Is the check result normal?

Go to Step 9.

Go to Step 7.

STEP 7. Connector check: A-24X power window relay connector

Q. Is the check result normal?

Go to Step 8.

Repair the connector.

STEP 8. Check the wiring harness from E-26 power window sub switch (front: RH) connector terminal No.4 to A-24X power window relay connector terminal No.3.

note

Prior to the wiring harness inspection, check intermediate connectors C-33, C-122 and joint connector C-32, and repair if necessary.

Check the power supply line for open circuit.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction

Repair the wiring harness.

STEP 9. Connector check: E-01 power window motor (front: RH) connector

Q. Is the check result normal?

Go to Step 10.

Repair the connector.

STEP 10. Check the wiring harness from E-01 power window motor (front: RH) connector terminal Nos. 1 and 3 to E-26 power window sub switch (front: RH) connector terminal Nos. 5 and 7.

Check the input and output lines for open or short circuit.

Q. Is the check result normal?

Go to Step 11.

Repair the wiring harness.

STEP 11. Retest the system.

After the power window sub switch (front: RH) is replaced, check that the front passenger’s door power window can be operated by the power window sub switch (front: RH).

(1)Replace the power window sub switch (front: RH).

(2)Check that the front passenger’s door power window can be operated by the power window sub switch (front: RH).

Q. Is the check result normal?

	The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).

	Replace the power window motor (front: RH).

STEP 12. Connector check: E-06 power window sub switch (rear: RH) connector

Q. Is the check result normal?

Go to Step 13.

Repair the connector.

STEP 13. Check the power window sub switch (rear: RH)

Check that the power window sub switch (rear: RH) works normally. Refer to

Q. Is the check result normal?

	Go to Step 14.

	Replace the power window sub switch (rear: RH).

STEP 14. Voltage measurement at the E-06 power window sub switch (rear: RH) connector.

(1)Disconnect the connector, and measure at the wiring harness side.
(2)Turn the ignition switch to the ON position.

(3)Check the voltage between the E-06 power window sub switch (rear: RH) connector terminal No.4 and body earth.
OK: System voltage

Q. Is the check result normal?

Go to Step 17.

Go to Step 15.

STEP 15. Connector check: A-24X power window relay connector

Q. Is the check result normal?

Go to Step 16.

Repair the connector.

STEP 16. Check the wiring harness from E-06 power window sub switch (rear: RH) connector terminal No.4 to A-24X power window relay connector terminal No.3.

note

Prior to the wiring harness inspection, check intermediate connectors C-16, C-33, D-24 and joint connector C-32, and repair if necessary.

Check the power supply line for open circuit.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction

Repair the wiring harness.

STEP 17. Connector check: E-05 power window motor (rear: RH) connector

Q. Is the check result normal?

Go to Step 18.

Repair the connector.

STEP 18. Check the wiring harness from E-05 power window motor (rear: RH) connector terminal Nos. 1 and 3 to E-06 power window sub switch (rear: RH) connector terminal Nos. 7 and 5.

Check the input and output lines for open or short circuit.

Q. Is the check result normal?

Go to Step 19.

Repair the wiring harness.

STEP 19. Retest the system.

After the power window sub switch (rear: RH) is replaced, check that the rear door power window can be operated by the power window sub switch (rear: RH).

(1)Replace the power window sub switch (rear: RH).

(2)Check that the rear door power window can be operated by the power window sub switch (rear: RH).

Q. Is the check result normal?

	The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).

	Replace the power window motor (rear: RH).

STEP 20. Connector check: E-13 power window sub switch (rear: LH) connector

Q. Is the check result normal?

Go to Step 21.

Repair the connector.

STEP 21. Check the power window sub switch (rear: LH)

Check that the power window sub switch (rear: LH) works normally. Refer to

Q. Is the check result normal?

	Go to Step 22.

	Replace the power window sub switch (rear: LH).

STEP 22. Voltage measurement at the E-13 power window sub switch (rear: LH) connector.

(1)Disconnect the connector, and measure at the wiring harness side.
(2)Turn the ignition switch to the ON position.

(3)Check the voltage between the E-13 power window sub switch (rear: LH) connector terminal No.4 and body earth.
OK: System voltage

Q. Is the check result normal?

Go to Step 25.

Go to Step 23.

STEP 23. Connector check: A-24X power window relay connector

Q. Is the check result normal?

Go to Step 24.

Repair the connector.

STEP 24. Check the wiring harness from E-13 power window sub switch (rear: LH) connector terminal No.4 to A-24X power window relay connector terminal No.3.

note

Prior to the wiring harness inspection, check intermediate connectors C-16, C-33, D-14 and joint connector C-32, and repair if necessary.

Check the power supply line for open circuit.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction

Repair the wiring harness.

STEP 25. Connector check: E-14 power window motor (rear: LH) connector

Q. Is the check result normal?

Go to Step 26.

Repair the connector.

STEP 26. Check the wiring harness from E-14 power window motor (rear: RH) connector terminal Nos. 1 and 2 to E-13 power window sub switch (rear: LH) connector terminal Nos. 7 and 4.

Check the input and output lines for open or short circuit.

Q. Is the check result normal?

Go to Step 27.

Repair the wiring harness.

STEP 27. Retest the system.

After the power window sub switch (rear: LH) is replaced, check that the rear door power window can be operated by the power window sub switch (rear: LH).

(1)Replace the power window sub switch (rear: LH).

(2)Check that the rear door power window can be operated by the power window sub switch (rear: LH).

Q. Is the check result normal?

	The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).

	Replace the power window motor (rear: LH).