Inspection Procedure

PREPARATION: 

1. Remove seat.
2. Disconnect each motor connector.

CHECK: 

Check seat movement when battery positive voltage is applied to each motor.

Fig 1: Checking Seat Movement When Battery Positive Voltage

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Slide Motor 

CHECK: 

Connect battery (+) to terminal 2 and battery (-) to terminal 1 of the slide motor connector.

OK: 

The seat moves forward. 

CHECK: 

Connect battery (+) to terminal 2 and battery (-) to terminal 1 of the slide motor connector.

OK: 

The seat moves backward. 

Front Vertical Motor 

CHECK: 

Connect battery (+) to terminal 2 and battery (-) to terminal 1 of the front vertical motor connector.

OK: 

The front of the seat cushion rises. 

CHECK: 

Connect battery (+) to terminal 2 and battery (-) to terminal 1 of the front vertical motor connector.

OK: 

The front of the seat cushion lowers. 

Fig 2: Checking Seat Movement

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Rear Vertical Motor 

CHECK: 

Connect battery (+) to terminal 2 and battery (-) to terminal 1 of the rear vertical motor connector.

OK: 

The front of the seat cushion rises. 

CHECK: 

Connect battery (+) to terminal 2 and battery (-) to terminal 1 of the rear vertical motor connector.

OK: 

The front of the seat cushion lowers. 

Reclining Motor 

CHECK: 

Connect battery to terminal (+) 2 and battery (-) to terminal 1 of the reclining motor connector.

OK: 

The seat back returns to up right. 

CHECK: 

Connect battery (+) to terminal 2 and battery (-) to terminal 1 of the reclining motor connector.

OK: 

The seat back is reclining. 

1. NG: Replace motor. 
2. OK: Go to next step. 

1. NG: Repair or replace harness or connector. 
2. OK: Proceed to next circuit inspection shown on problem symptom table (See  PROBLEM SYMPTOMS TABLE  ).