Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: System Diagram

Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Interior / Supplemental Restraint Systems / Occupant Classification System / 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

    READ NEXT:

     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

    SEE MORE:

     A/F (O2) Sensor Correlation Bank 1 Sensor 1/Bank 1 Sensor 2 Signal Compare Failure (P00D562)

    DESCRIPTION Refer to DTC P003012. Click here Refer to DTC P003612. Click here HINT: Although the DTC title says O2 sensor, this DTC relates to the air fuel ratio sensors (sensor 1 and sensor 2). DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note

     ABS Pump Motor Control Circuit Short to Ground (C052C11,...,C142796)

    DESCRIPTION The ABS motor relay is built into the brake actuator assembly. When the skid control ECU (brake actuator assembly) operates ABS, TRAC, VSC, brake hold or brake assist, the ABS motor relay turns ON and drives the motor pump built into the brake actuator assembly. DTC No.

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