Seat Belt Warning System Seat Belt Warning Light For Passenger Seat Does Not Operate

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK SUPPLEMENTAL RESTRAINT SYSTEM

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (SEAT BELT WARNING LIGHT FOR PASSENGER SIDE)

CHECK COMBINATION METER ASSEMBLY

INSPECT FUSE (ECU-IG RH, AM2, TV)

CHECK WIRE HARNESS (MULTI-DISPLAY - BATTERY AND BODY GROUND)

INSPECT MULTI-DISPLAY (SEAT BELT WARNING LIGHT FOR PASSENGER SIDE)

CHECK WIRE HARNESS (COMBINATION METER ASSEMBLY - MULTI-DISPLAY)

DESCRIPTION

1. When the engine switch is on (IG) and the passenger seat is occupied, the center airbag sensor assembly communicates the status of the front seat inner belt (passenger side) to the combination meter using the BEAN line. When the seat belt is unfastened, the combination meter flashes the passenger side seat belt warning light on the multi-display. When the seat belt is fastened, the combination meter stops flashing the passenger side seat belt warning light.
   

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Check for supplemental restraint system (SRS) DTCs.
   

   Result:

   Result	Proceed to
   No SRS DTCs are output	A
   SRS DTCs are output	B

1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the seat belt warning light operates.
   
   

   Combination meter assembly:

   
   

   Item	Test Details	Diagnostic Note
   Indicat. Lamp P-Seat Belt	Seat belt warning light for passenger side / OFF or ON	Confirm that vehicle is stopped and engine is idling

   OK:

   Seat belt warning light for passenger side operates normally.
   

1. Check that the entire combination meter operates normally.
   

   OK:

   Entire combination meter operates normally.
   

1. Remove the ECU-IG RH and AM2 fuses from the cowl side junction block RH.
   

2. Remove the TV fuse from the cowl side junction block LH.
   

3. Measure the resistance of the fuses.
   

   Standard resistance:

   Below 1 Ω
   

1. Disconnect the L46 multi-display connector.
   

2. Measure the voltage and resistance of the wire harness side connector.
   

   Standard voltage:

   Tester Connection	Switch Condition	Specified Condition
   L46-3 (IG) - Body ground	Engine switch on (IG)	10 to 14 V
   L46-1 (+B1) - Body ground	Always	10 to 14 V

   Standard resistance:

   Tester Connection	Switch Condition	Specified Condition
   L46-10 (GND1) - Body ground	Always	Below 1 Ω

1. Remove the multi-display.
   

2. Apply battery voltage to the panel and check that the light illuminates.
   

   OK:

   Measurement Connection	Specified Condition
   Battery positive (+) → B-3 (IG) Battery negative (-) → A-8 (PBEW)	Seat belt warning light for passenger side illuminates

1. Disconnect the L31 meter connector.
   

2. Disconnect the L48 multi-display connector.
   

3. Measure the resistance of the wire harness side connectors.
   

   Standard resistance:

   Tester Connection	Specified Condition
   L31-31 (PBLT) - L48-8 (PBEW)	Below 1 Ω