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
SEE MORE:
DESCRIPTION
Refer to DTC C050012
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DTC No.
Detection Item
DTC Detection Condition
Trouble Area
MIL
DTC Output from
Note
C05001F
Left Front Wheel Speed Sensor Circuit Intermittent
DESCRIPTION
The ABS solenoid relay is built into the skid control ECU in
the brake actuator assembly. The ABS solenoid relay supplies power to each solenoid.
The skid control ECU (brake actuator assembly) detects an ABS
solenoid relay malfunction by performing a self-check and relay operation
