System Inspection

Power Seat Control System (W/O Driving Position Memory)

Slide Switch:

Front Vertical Switch:

Rear Vertical Switch:

Reclining Switch:

Headrest Switch:

1. INSPECT FRONT POWER SEAT SWITCH CONTINUITY
If continuity is not as specified, replace the switch.

2. INSPECT POWER SEAT SWITCH CIRCUIT
a. Disconnect the switch connector and connect the seat wire harness to the floor wire harness.
b. Inspect the connector on the wire harness side, as shown.
If circuit is not as specified, inspect the circuits connected to other parts.

3. INSPECT LUMBAR SUPPORT SWITCH CONTINUITY

NOTE: ( ) = Passenger's Seat

If continuity is not as specified, replace the switch.

4. INSPECT LUMBAR SUPPORT SWITCH CIRCUIT
a. Disconnect the switch connector and connect the seat wire harness to the floor wire harness.
b. Inspect the connector on the wire harness side, as shown.
():Passenger's Seat
If circuit is not as specified, inspect the circuits connected to other parts.

5. INSPECT SLIDE MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1 and check that the motor turns counter clockwise.
b. Reverse the polarity and check that the motor turns clockwise.

If operation is not as specified, replace the motor.

6. Driver's seat: INSPECT SLIDE MOTOR PTC THERMISTOR OPERATION

a. Connect the positive (+) lead from the battery to terminal 2, the positive (+) lead from the ammeter to terminal 1, and the negative (-) lead to battery negative (-) terminal, then move the seat to front position.
b. Continue to apply voltage and check that the current changes to less than 1 ampere with 4 to 90 seconds.

c. Disconnect the lead from terminals.
d. Approximately 60 seconds later, connect the positive (+) lead from battery to terminal 1 and the negative (-) lead to terminal 2 and check that the seat begins to move backwards.

If operation is not as specified, replace the motor.

7. INSPECT FRONT VERTICAL MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1 and check that the motor turns clockwise.
b. Reverse the polarity and check that the motor turns counterclockwise.

If operation is not as specified, replace the motor.

8. Driver's Seat: INSPECT FRONT VERTICAL MOTOR PTC THERMISTOR OPERATION

a. Connect the positive (+) lead from the battery to terminal 1, the positive (+) lead from the ammeter to terminal 2 and the negative (-) lead to battery negative (-) terminal, then move the front edge of seat cushion to the highest position.
b. Continue to apply voltage, and check the current changes to less than 1 ampere with 4 to 90 seconds.

c. Disconnect the leads from terminals.
d. Approximately 60 seconds later, connect the positive (+) lead from battery to terminal 2 and the negative (-) lead to terminal 1, and check that the seat cushion begins to descend.

If operation is not as specified, replace the motor.

9. INSPECT REAR VERTICAL MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the motor turns clockwise.
b. Reverse the polarity, and check that the motor turns counterclockwise.

If operation is not as specified, replace the motor.

10. Driver's seat: INSPECT REAR VERTICAL MOTOR PTC THERMISTOR OPERATION

a. Connect the positive (+) lead from the battery to terminal 2, the positive (+) lead from the ammeter to terminal 1 and the negative (-) lead to battery negative (-) terminal, then move the rear edge of seat cushion to the highest position.
b. Continue to apply voltage, and check that the current changes to less than 1 ampere with 4 to 90 seconds

c. Disconnect the leads from terminals.
d. Approximately 60 seconds later, connect the positive (+) lead from battery to terminal 1 and the negative (-) lead to terminal 2, and check that the seat cushion begins to descend.

If operation is not as specified, replace the motor.

11. Driver's Seat: INSPECT RECLINING MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the motor turns counterclockwise.
b. Reverse the polarity, and check that the motor turns clockwise.

If operation is not as specified, replace the motor.

12. Driver's Seat: INSPECT RECLINING MOTOR PTC THERMISTOR OPERATION

a. Connect the positive (+) lead from the battery to terminal 1, the positive (+) lead from the ammeter to terminal 2 and the negative (-) lead to battery negative (-) terminal, then recline the seat back to the most forward position.
b. Continue to apply voltage, and check that the current change to less than 1 ampere with 4 to 90 seconds.

c. Disconnect the lead from terminals.
d. Approximately 60 seconds later, connect the positive (+) lead from battery to terminal 2 and the negative (-) lead to terminal 1, check that the seat back starts to fall backwards.

If operation is not as specified, replace the motor.

13. INSPECT LUMBAR SUPPORT MOTOR OPERATION

a. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the lumbar support moves release side.

b. Reverse the polarity, and check that the lumbar support moves forward.
If operation is not as specified, replace the motor.

14. Driver's Seat: INSPECT LUMBAR SUPPORT MOTOR PTC THERMISTOR OPERATION

a. Connect the positive (+) lead from the battery to terminal 1, the positive (+) lead from the ammeter to terminal 2 and the negative (-) lead to battery negative (-) terminal, then move the front edge of seat cushion to the highest position.
b. Continue to apply voltage, and check that the current changes to less than 1 ampere with 4 to 90 seconds.

c. Disconnect the leads from terminals.
d. Approximately 60 seconds later, connect the positive (+) lead from battery to terminal 2 and the negative (-) lead to terminal 1, and check that the seat cushion begins to descend.
If operation is not as specified, replace the motor.

Slide Switch LH:

Slide Switch RH:

Headrest Switch LH (for Vertical):

Headrest Switch RH (for Vertical):

Headrest Switch LH (for Turning):

Headrest Switch RH (for Turning):

15. Taiwan Models Only: INSPECT REAR POWER SEAT SWITCH CONTINUITY
If continuity is not as specified, replace the switch.

16. INSPECT REAR POWER SEAT SWITCH CIRCUIT
a. Disconnect the switch connector and connect the seat wire harness to the floor wire harness.
b. Inspect the connector on the wire harness side, as shown.

If circuit is not as specified, inspect the circuits connected to other parts.

17. INSPECT SLIDE MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1 and check that the motor turns counterclockwise.
b. Reverse the polarity and check that the motor turns clockwise.

If operation is not as specified, replace the motor.

18. INSPECT SLIDE MOTOR PTC THERMISTOR OPERATION

19. INSPECT HEADREST MOTOR OPERATION (For vertical)
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the motor turns counterclockwise.
b. Reverse the polarity, and check that the motor turns clockwise.

If operation is not as specified, replace the motor.

20. INSPECT HEADREST MOTOR CIRCUIT BREAKER OPERATION (For vertical)

a. Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 2 on the motor connector and move the headrest to DOWN position.

b. Continue to apply voltage, check that there is a circuit breaker operation noise within 4 to 60 seconds.
c. Reverse the polarity check that the headrest begins to move UP side within approx. 60 seconds.

If operation is not as specified, replace the headrest.

21. INSPECT HEADREST MOTOR OPERATION (For turning)
a. Connect the positive (+) lead from the battery to terminal 2 and negative (-) lead to terminal 4.
b. Connect the negative (-) lead to each terminal and check that the headrest turns at each position, as shown in the chart.

If operation is not as specified, replace the headrest.