Toyota Yaris: Seat Belt Warning System / System Diagram
SYSTEM DIAGRAM

Communication Table
| Sender | Receiver | Signal | Communication Method |
| Main body ECU (multiplex network body ECU) | Combination meter assembly | -
Front seat buckle switch signal (for Passenger side)
-
Rear seat belt buckle switch signal (LH/RH)
-
Front door courtesy light switch signal (LH/RH)
-
Parking brake switch
| CAN |
| Power Distribution Box Assembly | Main body ECU (multiplex network body ECU) | -
Front seat buckle switch signal (for Passenger side)
-
Rear seat belt buckle switch signal (LH/RH)
| CXPI |
| Skid control ECU (brake actuator assembly) | Combination meter assembly | Vehicle speed | CAN |
| ECM | Combination meter assembly | Gear position |
SYSTEM DESCRIPTION SEAT BELT WARNING SYSTEM DESCRIPTION (a) Seat belt warning light operation for driver seat belt: (1) The seat belt warning light on the combination meter assembly illuminates, blinks or turns off in accordance with the driver seat belt state, vehicle speed, shift lever position and parking brake state...
Other information:
DESCRIPTION The main body ECU (multiplex network body ECU) and rain sensor communicate via LIN communication. The main body ECU (multiplex network body ECU) stores this DTC if communication becomes abnormal. DTC No. Detection Item DTC Detection Condition Trouble Area Memory DTC Output from B127987 Humidity/Rain Sensor Missing Message
Auxiliary battery voltage is 9...
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the driver side and front passenger side.
The procedure listed below is for the driver side.
PROCEDURE 1. INSTALL FRONT SEAT INNER BELT ASSEMBLY (for Driver Side) (a) Install the front seat belt anchor plate...
Categories
Before refueling, close all the doors, windows, and the liftgate/trunk
lid, and switch the ignition OFF.
To open the fuel-filler lid, pull
the remote fuel-filler lid release.

To remove the fuel-filler cap, turn it counterclockwise.
Attach the removed cap to the
inner side of the fuel-filler lid.
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