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 |
| |
| 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 |
| CAN |
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System Description
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
How To Proceed With Troubleshooting
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
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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Installation
INSTALLATION
CAUTION / NOTICE / HINT
COMPONENTS (INSTALLATION)
Procedure
Part Name Code
1
INSTALL FRONT FLEXIBLE HOSE
47313J
-
-
2
CONNECT FRONT
Lost Communication with Front Control Rear Air Outlet Damper Control Servo Motor LIN Missing Message (B13AA87)
DESCRIPTION The air conditioning harness assembly connects the air conditioning amplifier assembly and No. 2 air conditioning radiator damper servo sub-assembly.
The No. 2 air conditioning radiator damper servo sub-assembly sends damper position information to the air conditioning amplifier assemb
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