Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM
Communication Table |
Transmitting ECU / Parts (Transmitter) |
Receiving ECU / Parts (Receiver) |
Signal | Communication Method |
|---|---|---|---|
|
Front Airbag Sensor |
Airbag ECU Assembly | Front collision G signal |
Direct line |
|
No. 1 Side Airbag Sensor |
Side collision G signal | ||
|
Side Airbag Pressure Sensor |
Side collision P signal | ||
|
Passenger Seat Buckle Switch (Front Seat Inner Belt Assembly RH) |
Passenger seat belt fastened signal | ||
|
Airbag ECU Assembly | Horn Button Assembly |
Ignition signal |
Direct line |
|
Instrument Panel Passenger without Door Airbag Assembly | |||
|
Lower No. 1 Instrument Panel Airbag Assembly | |||
|
Front Seat Airbag Assembly | |||
|
Rear Seat Airbag Assembly | |||
|
Curtain Shield Airbag Assembly | |||
|
Front Seat Outer Belt Assembly | |||
|
Passenger Airbag ON Indicator (Map Light Assembly) |
| ||
| Passenger Airbag OFF Indicator (Map Light Assembly) |
| ||
| Main Body ECU (Multiplex Network Body ECU) |
Collision detection signal (for door lock release) | ||
|
DCM (Telematics Transceiver)*1 | Collision detection signal (for mayday output) | ||
|
Airbag ECU Assembly | Hybrid Vehicle Control ECU*2 |
Collision detection signal (for hybrid high voltage release) |
CAN |
| ECM*3 |
Collision detection signal (for fuel cut) | ||
|
Skid Control ECU (Brake Actuator Assembly) | Collision detection signal (for secondary collision brake) | ||
|
Combination Meter Assembly |
| ||
| Main Body ECU (Multiplex Network Body ECU) |
Interior light illumination request signal | ||
|
Forward Recognition Camera*4 |
Airbag ECU Assembly | Front PCS information |
CAN |
- *1: w/ Telematics Transceiver
- *2: for HEV Model
- *3: for Gasoline Model
- *4: w/ Toyota Safety Sense
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System Description
SYSTEM DESCRIPTION FUNCTION OF SRS CONNECTORS
(a) Location of activation prevention mechanism
(b) Function of activation prevention mechanism
(1) This mechanism is designed to create a short c
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the airbag system.
*: Use the GTS.
PROCEDURE
1. VEHICLE BROUGHT TO WORKSHOP
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Operation Check
OPERATION CHECK PRECAUTION FOR OPERATION CHECK
Be sure to read Precaution thoroughly before servicing.
Click here
Be sure to correctly follow the removal and installation procedures f
SEE MORE:
Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
COMPONENTS (REASSEMBLY)
Procedure
Part Name Code
1
CLEAN VACUUM PUMP HOUSING
-
-
-
2
VACUUM PUMP ROTOR
Power Steering Torque Sensor "B" Supply Voltage Circuit Voltage Above Threshold
(C151B17)
DESCRIPTION
The power steering ECU assembly supplies a voltage of 5 V to the torque sensor
(electric power steering column sub-assembly) and monitors the voltage value of
the Hall IC inside the torque sensor (electric power steering column sub-assembly)
which changes in response to changes in
