Front Passenger Side Seat Belt Warning Light Malfunction

METER / GAUGE SYSTEM: Front Passenger Side Seat Belt Warning Light Malfunction

Front Passenger Side Seat Belt Warning Light Malfunction

WIRING DIAGRAM





INSPECTION PROCEDURE

HINT: If there is an open in the ground circuit (Airbag sensor ECU), the center airbag sensor assembly outputs DTCs. Perform troubleshooting with the "Supplemental Restraint System" ([1][2]How To Proceed With Troubleshooting).

PROCEDURE

1. INSPECT CENTER AIRBAG SENSOR ASSEMBLY





(a) Disconnect the A22 connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:





NG -- INSPECT FRONT SEAT INNER BELT ASSEMBLY (PASSENGER SIDE)
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - CENTER AIRBAG SENSOR ASSEMBLY)





(a) Disconnect the A22 and C5 connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE CLOCK ASSEMBLY
3. INSPECT FRONT SEAT INNER BELT ASSEMBLY (PASSENGER SIDE)





(a) Disconnect the connector from the front seat inner belt assembly (Front passenger side).
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPLACE FRONT SEAT INNER BELT ASSEMBLY (PASSENGER SIDE)
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY - OCCUPANT CLASSIFICATION ECU)





(a) Disconnect the O2 and B11 connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (OCCUPANT CLASSIFICATION ECU - CENTER AIRBAG SENSOR ASSEMBLY)





(a) Disconnect the O2 and A23 connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
6. INSPECT OCCUPANT CLASSIFICATION ECU





(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:









(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- GO TO AIRBAG SYSTEM