Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM

Communication Table
Transmitting ECU / Parts (Transmitter) |
Receiving ECU (Receiver) |
Signal | Communication Method |
Passenger Seat Buckle Switch (Front Seat Inner Belt Assembly RH) |
Airbag ECU Assembly | Front passenger side buckle switch signal |
Direct line |
Passenger Airbag ON/OFF Indicator (Map Light Assembly) |
Airbag ECU Assembly |
- Passenger airbag indicator ON signal
- Passenger airbag indicator OFF signal
|
Front Occupant Classification Sensor LH (Front Seat Cushion Spring Sub-assembly RH) |
Airbag ECU Assembly |
Occupant load for front passenger signal |
LIN |
Rear Occupant Classification Sensor LH (Front Seat Cushion Spring Sub-assembly RH) |
Airbag ECU Assembly |
Skid Control ECU (Brake Actuator Assembly) |
Airbag ECU Assembly |
- Vehicle speed signal
- Acceleration signal
| CAN |
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SYSTEM DESCRIPTION GENERAL (a) The airbag ECU assembly estimates the weight of an occupant based on signals received from the 2 occupant classification sensors. The airbag ECU assembly determines whet
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the occupant classification system.
*: Use the GTS.
PROCEDURE
1. VEHICLE BROUGHT TO WORKSHOP
OPERATION CHECK CHECK SRS WARNING LIGHT (a) Primary check
(1) Turn the ignition switch to ON and check that the SRS warning light turns on.
(2) Turn the ignition switch off. Wait for at least 2 s
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REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 REAR CENTER SEAT OUTER BELT ASSEMBLY
73350C -
- -
2 BENCH TYPE REAR SEAT CUSHION ASSEMBLY
-
- -
3 BENCH TYPE REAR SEAT CUS
PARTS LOCATION ILLUSTRATION
*1 CANISTER
*2 FUEL PUMP (for Low Pressure Side)
*3 MASS AIR FLOW METER SUB-ASSEMBLY
*4 PARK / NEUTRAL POSITION SWITCH ASSEMBLY
*5 NO. 1 ENGINE ROOM RELAY BLOCK ASSEMBLY
*6 NO. 2 RELAY BLOCK ASSEMBLY
*7 FUE