Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Power Window Control System: Inspection
- INSPECT POWER WINDOW MASTER SWITCH CONTINUITY
Front driver's switch:
FRONT DRIVER'S SWITCH CONTINUITY CHECKSwitch position Tester connection Specified condition AUTO 7 - 16 Continuity UP 6 - 16 Continuity OFF - No continuity DOWN 16 - 18 Continuity Front passenger's switch:
FRONT PASSENGER'S SWITCH CONTINUITY CHECKSwitch position Tester connection Specified condition AUTO 3 - 13 Continuity UP 3 - 12 Continuity OFF - No continuity DOWN 3 - 4 Continuity Rear left switch:
REAR LEFT SWITCH CONTINUITY CHECKSwitch position Tester connection Specified condition AUTO 13 - 14 Continuity UP 12 - 14 Continuity OFF - No continuity DOWN 4 - 14 Continuity Rear right switch:
REAR RIGHT SWITCH CONTINUITY CHECKSwitch position Tester connection Specified condition UP AUTO 11 - 13 Continuity UP 11 - 12 Continuity OFF - No continuity DOWN 4 - 11 Continuity If continuity is not as specified, replace the master switch.
- INSPECT POWER WINDOW MASTER SWITCH CIRCUIT
- INSPECT POWER WINDOW MASTER SWITCH ILLUMINATION
- Set the window lock switch to the unlock position.
- Connect the positive (+) lead from the battery to terminal 15 and the negative (-) lead to terminal 16, and check that all the illuminations light up.
- Connect the positive (+) lead from the voltmeter to terminal 15 and negative (-) lead to terminal 2, and check that the voltage meter needle indicates battery positive voltage.
- Set the window lock switch to the lock position, check that all the passenger's power window switch illuminations go out.
- Then, check that the voltage meter needle indicates no voltage.
If operation is not as specified, replace the master switch.
- INSPECT POWER WINDOW SWITCH CONTINUITY POWER WINDOW SWITCH CONTINUITY CHECK
Switch position Tester connection Specified condition AUTO 3 - 5 Continuity UP 3 - 6 Continuity OFF - No continuity DOWN 3 - 4 Continuity If continuity is not as specified, replace the switch.
- INSPECT POWER WINDOW SWITCH CIRCUIT
Passenger side: (See POWER WINDOW SWITCH CIRCUIT )
Rear LH side: (See POWER WINDOW SWITCH CIRCUIT )
Rear RH side: (See POWER WINDOW SWITCH CIRCUIT )
- INSPECT POWER WINDOW SWITCH ILLUMINATION
Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 2, and check that the indicator light lights up.
If operation is not as specified, replace the switch.
- INSPECT POWER MAIN RELAY CONTINUITY POWER MAIN RELAY CONTINUITY CHECK
Condition Tester connection Specified condition Constant 1 - 2 Continuity Apply B+ between terminals 1 and 2. 3 - 5 Continuity If continuity is not as specified, replace the relay.
- INSPECT POWER MAIN RELAY CIRCUIT
(See INSPECTION )
- Driver's door: INSPECT POWER WINDOW MOTOR OPERATION
- Connect the positive (+) lead from the battery to terminal and the negative (-) lead to terminal 2, and check that the motor turns clockwise.
- Reverse the polarity, check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.
- Driver's door: INSPECT POWER WINDOW MOTOR CIRCUIT
(See POWER WINDOW MOTOR CIRCUIT )
- Front passenger's door: INSPECT POWER WINDOW MOTOR OPERATION
- Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the motor turns clockwise.
- Reverse the polarity, check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.
- Front passenger's door: INSPECT POWER WINDOW MOTOR CIRCUIT
(See POWER WINDOW MOTOR CIRCUIT )
- Rear left side door: INSPECT POWER WINDOW MOTOR OPERATION
- Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 1, and check that the motor turns clockwise.
- Reverse the polarity, check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.
- Rear right side door: INSPECT POWER WINDOW MOTOR OPERATION
- Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 3, and check that the motor turns clockwise.
- Reverse The polarity, check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.
- Front door: INSPECT POWER WINDOW MOTOR PTC OPERATION
- Disconnect the connector from the master switch.
- Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1 on the wire harness side connector and raise the window to full closed position.
- Continue to apply voltage, check that there is a PTC operation noise within approximately 4 to 90 seconds.
- Reverse the polarity, check that the window begins to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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