Front Passenger Side Seat Belt Warning Light Malfunction

DESCRIPTION

with Navigation System:
The combination meter assembly detects the state of the front seat inner belt assembly RH when the front passenger seat is occupied with the engine switch on (IG). If the front passenger seat belt is not fastened, the front seat belt warning light on the multi-media module display blinks. If the seat belt is fastened, the warning light goes off.
without Navigation System:
The combination meter assembly detects the state of the front seat inner belt assembly RH when the front passenger seat is occupied with the engine switch on (IG). If the front passenger seat belt is not fastened, the front seat belt warning light on the integration control & panel assembly blinks. If the seat belt is fastened, the warning light goes off.

WIRING DIAGRAM

INSPECTION PROCEDURE

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER

1. Operate the intelligent tester according to the steps on the display and select "ACTIVE TEST".

METER:

Item	Test Details	Diagnostic Note
Indicat. lamp P-seat Belt	P-SEAT BELT indicator light (OFF/ON)	Confirm that the vehicle is stopped with the engine idling

Result:

OK (without Navigation System)	A
OK (with Navigation System)	B
NG	C

OK:

Switch condition (ON/OFF) can be switched by "ACTIVE TEST".

B	Go to step 5
C	GO TO COMBINATION METER SYSTEM

A

2. CHECK WIRE HARNESS (INTEGRATION CONTROL & PANEL +B)

1. Disconnect the integration control & panel connector.

2. Measure the voltage according to the value(s) in the table below.

   Voltage:

   Tester Connection	Condition	Specified Condition
   J54-4 (IG+) - Body ground	Engine switch on (IG)	10 to 14 V

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3. CHECK INTEGRATION CONTROL & PANEL

1. Disconnect the integration control & panel connector.

2. Apply battery voltage to the connector according to the table below.

   Voltage:

   Condition	Specified Condition
   Battery positive (+) → Terminal 4 (IG) Battery negative (-) → Terminal 13 (PBEW)	Lights up (Seat belt warning light)

NG	REPLACE INTEGRATION CONTROL & PANEL

OK

4. CHECK WIRE HARNESS (INTEGRATION CONTROL & PANEL - COMBINATION METER ASSEMBLY)

1. Disconnect the combination meter assembly and integration control & panel connectors.

2. Measure the resistance according to the value(s) in the table below.

   Resistance:

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

OK	Go to step 8

NG
REPAIR OR REPLACE HARNESS OR CONNECTOR

5. CHECK WIRE HARNESS (MULTI-MEDIA MODULE DISPLAY +B)

1. Disconnect the multi-media module display connector.

2. Measure the voltage according to the value(s) in the table below.

   Voltage:

   Tester Connection	Condition	Specified Condition
   J50-3 (IG+) - Body ground	Engine switch on (IG)	10 to 14 V

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

6. CHECK MULTI-MEDIA MODULE DISPLAY

1. Disconnect the multi-media module display connector.

2. Apply battery voltage to the connector according to the table below.

   Voltage:

   Condition	Specified Condition
   Battery positive (+) → Terminal 3 (IG) Battery negative (-) → Terminal 21(PBEW)	Lights up (Seat belt warning light)

NG	REPLACE MULTI-MEDIA MODULE DISPLAY

OK

7. CHECK WIRE HARNESS (MULTI-MEDIA MODULE DISPLAY - COMBINATION METER ASSEMBLY)

1. Disconnect the combination meter assembly and multi-media module display connectors.

2. Measure the resistance according to the value(s) in the table below.

   Resistance:

   Tester Connection	Condition	Specified Condition
   J35-3 (PBLT) - J50-21 (PBEW)	Always	Below 1 Ω
   J35-3 (PBLT) - Body ground	Always	10 kΩ or higher

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

8. INSPECT SEPARATE TYPE FRONT SEAT CUSHION COVER (OCCUPANT DETECTION SENSOR)

1. Disconnect the occupant detection sensor connector.

2. Measure the resistance according to the value(s) in the table below.

   Resistance:

   Tester Connection	Condition	Specified Condition
   A-1 - A-3	The passenger seat is occupied	Below 100 Ω
   A-1 - A-3	The passenger seat is not occupied	Below 1 MΩ

NG	REPLACE SEPARATE TYPE FRONT SEAT CUSHION COVER (OCCUPANT DETECTION SENSOR)

OK

9. CHECK WIRE HARNESS (COMBINATION METER ASSEMBLY - FRONT SEAT INNER BELT RH)

1. Disconnect the front seat inner belt RH connector.

2. Measure the resistance according to the value(s) in the table below.

   Resistance:

   Tester Connection	Condition	Specified Condition
   J35-4 (P/SB) - T3-1 (WS+)	Always	Below 1 Ω
   J35-4 (E) - Body ground	Always	10 kΩ or higher

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

10. REPLACE FRONT SEAT INNER BELT ASSEMBLY (PASSENGER SIDE)

1. Replace the front seat inner belt assembly (Passenger side).

OK:

Seat belt warning operation returns to normal.

NG	REPLACE COMBINATION METER

OK
END