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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INSTALLATION
CAUTION / NOTICE / HINT
COMPONENTS (INSTALLATION)
Procedure
Part Name Code
1
PARK/NEUTRAL POSITION SWITCH ASSEMBLY
84540
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-
2
TRANS
ENGINE
HINT:
Perform these procedures after the engine has cooled down.
INSPECT DRIVE BELT
(a) Inspect the drive belt.
Click here
INSPECT ENGINE OIL
(a) Inspect the engine oil.
M20A-FKS: Click here
M20A-FXS: Click here
REPLACE ENGINE OIL AND OIL FILTER
(a) Replace the engine oil and
