Inspection Procedure

1. 5 seconds after the seat vibrator switch SW1 is pressed, check if LED7 blinks (see SYSTEM DESCRIPTION ).

   Result: 

   BLINKING CONDITION OF LED7
   
   

   Result	Proceed to
   Blinks	A
   Does not blink	B

B: Go to step   3 

A: GO TO NEXT STEP 

1. Disconnect the S29 seat vibrator module connector.
2. Measure the voltage and resistance according to the values in the table below.

   Standard voltage 

   SEAT VIBRATOR MODULE - BATTERY AND BODY GROUND VOLTAGE
   
   

   Tester Connection	Switch Condition	Specified Condition
   S29-1 IG) - Body ground	Engine switch on (IG)	11 to 14 V

   Standard resistance 

   SEAT VIBRATOR MODULE - BATTERY AND BODY GROUND RESISTANCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   S29-8 (GND) - Body ground	Always	Below 1 Ω

   Fig 1: Identifying S29 Seat Vibrator Module Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE SEAT VIBRATOR MODULE ASSEMBLY  (See REMOVAL )

1. 5 seconds after the seat vibrator switch SW1 is pressed, check if LED6 blinks (see SYSTEM DESCRIPTION ).

   Result: 

   BLINKING CONDITION OF LED6
   
   

   Result	Proceed to
   Blinks	A
   Does not blink	B

B: END (SEAT VIBRATOR SWITCH IS DEFECTIVE) 

A: GO TO NEXT STEP 

1. Disconnect the Y2 switch connector.
2. Measure the voltage and resistance according to the values in the table below.

   Standard voltage 

   SEAT VIBRATOR SWITCH - BATTERY AND BODY GROUND VOLTAGE
   
   

   Tester Connection	Switch Condition	Specified Condition
   Y2-1 (IG) - Body ground	Engine switch on (IG)	11 to 14 V

   Standard resistance 

   SEAT VIBRATOR SWITCH - BATTERY AND BODY GROUND RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   Y2-5 (GND) - Body ground	Always	Below 1 Ω

   Fig 2: Identifying Y2 Switch Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Disconnect the S29 seat vibrator module connector.
2. Disconnect the Y2 switch connector.
3. Measure the resistance according to the values in the table below.

   Standard resistance 

   Result: 

   SEAT VIBRATOR SWITCH - SEAT VIBRATOR MODULE
   
   

   Tester Connection	Condition	Specified Condition
   Y2-3 (MPX) - S29-3 (LIN)	Always	Below 1 Ω

   Fig 3: Identifying S29 Seat Vibrator Module And Y2 Switch Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Replace the seat vibrator switch with a new or normally operating one. Perform an operation inspection.

   OK: Seat vibrator operates normally. 

NG: REPLACE SEAT VIBRATOR MODULE ASSEMBLY  (See REMOVAL )

OK: END (SEAT VIBRATOR SWITCH IS DEFECTIVE)