Front Passenger Side Seat Belt Warning Light Malfunction: Procedure

1. Check for DTCs.
   RESULT:
   
   

   Result	Proceed to
   DTC does not occur	A
   CAN communication system DTC output occurs	B
   Airbag system DTC output occurs	C
   Occupant classification system DTC output occurs	D

D → See step   12 

C → See step   11 

B → See step   10 

A: Go to next step 

1. Remove the ECU-IG fuse from the cowl side junction block RH.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   ECU-IG fuse	Always	Below 1 Ω

NG → REPLACE FUSE 

OK: Go to next step 

1. Operate Techstream according to the steps on the display and select "ACTIVE TEST".
   COMBINATION METER:
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Front Passenger Side Seat Belt Remind	Passenger seat belt warning light	ON or OFF	-

   HINT: 

   *: Confirm that the vehicle is stopped with the engine idling.

   RESULT:
   
   

   Result	Proceed to
   Passenger seat belt warning light condition cannot be switched by "ACTIVE TEST" (w/o Navigation system)	A
   Passenger seat belt warning light condition cannot be switched by "ACTIVE TEST" (w/ Navigation system)	B
   Passenger seat belt warning light condition can be switched by "ACTIVE TEST"	C

C → See step   8 

B → See step   6 

A: Go to next step 

1. Disconnect the J54 panel connector.
   Fig 1: Checking Harness & Connector (Integration Control And Panel -- Combination Meter Voltage)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the J35 meter connector.
3. Measure the resistance and voltage according to the value(s) in the table below.

   Standard resistance

   Standard voltage 

   Tester Connection	Condition	Specified Condition
   J54-13 (PBEW) - J35-3 (PBLT)	Always	Below 1 Ω
   J54-8 (E) - Body ground
   J54-13 (PBEW) or J35-3 (PBLT) - Body ground		10 kΩ or higher

   Tester Connection	Switch Condition	Specified Condition
   J54-4 (IG+) - Body ground	Engine switch on (IG)	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 2: Identifying Integration Control And Panel Assembly Connector Terminal J54

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the integration control and panel. Refer to REMOVAL .
2. Connect the positive (+) lead to terminal 4 (IG+), and the negative (-) battery lead to terminals 13 (PBEW) and 8 (E).
3. Check that the passenger seat belt warning light comes on.

   OK

   Passenger seat belt warning light comes on.

NG → See step   13 

OK → See step   14 

1. Disconnect the J92 clock connector.
   Fig 3: Identifying J92 Clock & J35 Meter Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the J35 meter connector.
3. Measure the resistance and voltage according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J92-12 (PBEW) - J35-3 (PBLT)	Always	Below 1 Ω
   J92-3 (E) - Body ground	Always	Below 1 Ω
   J92-12 (PBEW) or J35-3 (PBLT) - Body ground	Always	10 kΩ or higher

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   J92-15 (IG+) - Body ground	Engine switch on (IG)	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the J92 clock connector.
   Fig 4: Identifying J92 Clock Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the positive (+) lead to terminal 15 (IG+), and the negative (-) battery lead to terminals 12 (PBEW) and 3 (E).
3. Check that the passenger seat belt warning light comes on.

   OK

   Passenger seat belt warning light comes on.

NG → See step   15 

OK → See step   16 

1. Temporarily replace the front seat inner belt RH with a new or normally functioning one. Refer to REMOVAL .

NEXT: Go to next step 

1. Check that the passenger seat belt warning light operates normally. Refer to ON-VEHICLE INSPECTION .

   OK

   Passenger seat belt warning light operates normally.

NG → See step   17 

OK → END (FRONT SEAT INNER BELT RH IS DEFECTIVE)