Inspection Procedure 1

Only the door window does not open and close.

Power Window Motor <LH> Drive Circuit:

CIRCUIT OPERATION
- When the power window switch is operated up or down, the operation side relay turns on, the power window motor operates, and opens or closes the door window .

TECHNICAL DESCRIPTION (COMMENT)
- The cause may be a malfunction of the power window motor drive circuit.

TROUBLESHOOTING HINTS
- Malfunction of the power window relay.
- Malfunction of the ETACS-ECU.
- Damaged harness wires or connectors.

DIAGNOSIS

STEP 1. Check the power window main switch continuity.
1. Remove the power window main switch.

2. Check the continuity when the power window main switch is turned to the UP position or DOWN position.

Q: Is the power window main switch damaged?

YES: Replace it, then go to Step 4.
NO: Go to Step 2.

STEP 2. Check the front power window motor operation.
1. Remove the power window motor .

2. Connect a battery directly to the motor terminals and check that the motor runs smoothly.

Q: Is the front power window motor damaged?

YES: Replace it, then go to Step 4.
NO: Go to Step 3.

STEP 3. Check the harness wires between power window main switch connector E-12 and power window motor connector E-11.

Q: Are there any damaged wires between power window main switch connector E-12 and power window motor connector E-11?

YES: Repair them, then go to Step 4.
NO: Go to Step 4.

STEP 4. Check symptoms

Q: Does the door window open and close normally?

YES: This diagnosis is complete.
NO: Return to Step 1.