SEAT BELT – SEAT BELT WARNING SYSTEM SB–1 SB SEAT BELT WARNING SYSTEM PARTS LOCATION CLOCK ASSEMBLY: FRONT PASSENGER SEAT BELT WARNING LIGHT - DRIVER SIDE SEAT BELT WARNING BINATION METER ASSEMBLY (INSTRUMENT PANEL J/B) MAIN BODY ECU CENTER AIRBAG SENSOR ASSEMBLY FRONT SEAT INNER BELT ASSEMBLY (FRONT RH) FRONT SEAT INNER BELT ASSEMBLY (FRONT LH) - GAUGE NO. 2 FUSE SB–2 SEAT BELT – SEAT BELT WARNING SYSTEM SB SYSTEM DIAGRAM Front Seat Inner Belt RH Front Seat Inner Belt LH Occupant Detection ECU Center Airbag Sensor bination Meter Assembly Road Sensor FL Road Sensor FR Road Sensor RL SV3 SIG3 SGD3 FSR+ FSR- FSP+ FSP- CANH CANL DBE+ DBE- CANH 9 P/BE CANL 19 : CAN 10 PBEW GND1 IG 3 SV4 SIG4 SGD4 SV2 SIG2 SGD2 SV1 SIG1 SGD1 BSW BGN Road Sensor RR Clock Assembly F3 F1 from GAUGE No. 2 fuse SEAT BELT – SEAT BELT WARNING SYSTEM SB–3 SB SYSTEM DESCRIPTION 1. Driver seat belt warning light (a) When the driver seat belt is not fastened with the ignition switch on (IG), the driver seat belt warning light on bination meter es on to inform the driver. The center airbag assembly detects the driver seat belt status and sends signals to bination meter assembly using CAN. 2. Passenger seat belt warning (a) When the passenger seat belt is not fastened with the ignition switch on (IG) and the passenger seat occupied, check that the passenger seat belt warning light on the clock display blinks. The combination meter assembly displays the passenger seat belt status and whether the passenger seat is occupied. SB–4 SEAT BELT – SEAT BELT WARNING SYSTEM SB HOW TO PROCEED WITH TROUBLESHOOTING HINT: ? Use the following procedures to troubleshoot the seat belt warning system. ? *: Use the intelligent tester. NEXT Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step. NEXT (a) Use the intelligent tester to check if the CAN Communication System (CAN) is functioning normally. Result B A
