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.
Section 438 (Power Window Control System): Inspection
- INSPECT POWER WINDOW MASTER SWITCH CONTINUITY
Front Driver's Switch
CONNECTOR TERMINALS SPECIFIED CONDITIONSwitch position Tester connection Specified condition UP AUTO 6 - 20, 6 - 16 Continuity UP 6 - 20 Continuity OFF - No continuity DOWN 6 - 11 Continuity DOWN AUTO 6 - 11, 6 - 16 Continuity Front Passenger's Switch
CONNECTOR TERMINALS SPECIFIED CONDITIONSwitch position Tester connection Specified condition UP AUTO 3 - 14, 3 - 15 Continuity UP 3 - 14 Continuity OFF - No continuity DOWN 3 - 13 Continuity DOWN AUTO 3 - 13, 3 - 15 Continuity Rear Left Switch
CONNECTOR TERMINALS SPECIFIED CONDITIONSwitch position Tester connection Specified condition UP AUTO 5 - 14, 5 - 15 Continuity UP 5 - 14 Continuity OFF - No continuity DOWN 5 - 13 Continuity DOWN AUTO 5 - 13, 5 - 15 Continuity Rear Right Switch
CONNECTOR TERMINALS SPECIFIED CONDITIONSwitch position Tester connection Specified condition UP AUTO 4 - 14, 4 - 15 Continuity UP 4 - 14 Continuity OFF - No continuity DOWN 4 - 13 Continuity DOWN AUTO 4 - 13, 4 - 15 Continuity If continuity is not as specified, replace the master switch.
- INSPECT POWER WINDOW MASTER SWITCH ILLUMINATION
- Set the window lock switch to the unlock position.
- Connect the positive (+) lead from the battery to terminal 18 and the negative (-) lead to terminal 10, and check that all the illuminations light up.
- Set the window lock switch to the lock position.
- Connect the positive (+) lead from the battery to terminal 8 and the negative (-) lead to terminal 10, and check that all the illuminations does not light up.
If operation is not as specified, replace the master switch.
- Front Passenger's Door: INSPECT POWER WINDOW SWITCH CONTINUITY CONNECTOR TERMINALS SPECIFIED CONDITION
Switch position Tester connection Specified condition UP AUTO 3 - 8, 1 - 8 Continuity UP 1 - 8 Continuity OFF - No continuity DOWN 6 - 8 Continuity DOWN AUTO 3 - 8, 6 - 8 Continuity If continuity is not as specified, replace the switch.
- Driver's Door: INSPECT POWER WINDOW MOTOR OPERATION
- Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4, 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 OPERATION
- Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4, 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 Left Side: 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.
HINT:
Since the jam protection may not work properly be sure to conduct procedures described in "How to Reset Power Window Motor (Reset switch and pulse switch)" after this inspection.
- Rear Right Side: 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.
HINT:
Since the jam protection may not work properly be sure to conduct procedures described in "How to Reset Power Window Motor (Reset switch and pulse switch)" after this inspection.
- Front Door: INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION
- Disconnect the connector from the Driver door Window motor.
- Connect the positive (+) lead from the ammeter to terminal 5 on the wire harness side connector and the negative (-) lead to negative terminal of the battery.
- Connect the positive (+) lead from the battery to terminal 4 on the wire harness side connector, and raise the window to the fully position.
- Continue to apply voltage, and check that the current changes to less than 1 A within 4 to 90 seconds.
- Disconnect the leads from the terminals.
- Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4, and check that the window begins to descend.
If operation is not as specified, replace the motor.
- Rear LH Door: INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION
- Disconnect the connector from the Rear LH door ECU.
- Connect the positive (+) lead from the ammeter to terminal 1 on the wire harness side connector and the negative (-) lead to negative terminal of the battery.
- Connect the positive (+) lead from the battery to terminal 2 on the wire harness side connector, and raise the window to the fully position.
- Continue to apply voltage and check that the current changes to less than 1 A within 4 to 90 seconds.
- Disconnect the leads from the terminals.
- Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the window begins to descend.
If operation is not as specified, replace the motor.
- Rear RH Door: INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION
- Disconnect the connector from the Rear RH door ECU.
- Connect the positive (+) lead from the ammeter to terminal 2 on the wire harness side connector and the negative (-) lead to negative terminal of the battery.
- Connect the positive (+) lead from the battery to terminal 1 on the wire harness side connector, and raise the window to the fully position.
- Continue to apply voltage and check that the current changes to less than 1 A within 4 to 90 seconds.
- Disconnect the leads from the terminals.
- Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the window begins to descend.
If operation is not as specified, replace the motor.
- Driver's Door: INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
- Connect the positive (+) lead from the ohmmeter to terminal 2 and the negative (-) lead to terminal 3.
- Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 5.
- Check that the continuity exists when the window goes up.
- Check that the no continuity exists when the window is in the fully closed position.NOTE: If connecting the wire harness wrongly, the sensor might be damaged so caution is necessary.
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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.