Toyota CH-R Service Manual: System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitting ECU

(Transmitter)

Receiving ECU

Signal

Communication Method

Airbag Sensor Assembly

ECM

  • Crash detection signal

CAN

Airbag Sensor Assembly

Combination Meter Assembly

  • SRS warning light on demand signal
  • Diagnosis signal (DTC)

Airbag Sensor Assembly

Skid Control ECU (Brake Actuator Assembly)

  • Yaw rate and acceleration signal

Occupant Detection ECU*

Airbag Sensor Assembly

  • Occupant classification system failure signal
  • Occupant classification system zero point error signal
  • Occupant state for passenger signal
  • Buckle switch state of passenger signal

ECM

Airbag Sensor Assembly

  • Shift position signal
  • Test mode signal
  • Engine speed signal

Skid Control ECU (Brake Actuator Assembly)

Airbag Sensor Assembly

  • Vehicle speed signal
  • Stop signal

Main Body ECU (Multiplex Network Body ECU)

Airbag Sensor Assembly

  • Trip count signal
  • Time count signal

*: w/ Occupant Classification System

    Parts Location
    PARTS LOCATION ILLUSTRATION *1 FRONT AIRBAG SENSOR LH *2 FRONT AIRBAG SENSOR RH *3 DOOR SIDE AIRBAG SENSOR LH *4 ...

    System Description
    SYSTEM DESCRIPTION GENERAL (a) Acceleration sensors and pressure sensors used for the airbag system are installed to various parts on the vehicle and calculate the acceleration rate and pressure ...

    Other materials:

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    DESCRIPTION This DTC is stored when a communication error occurs between the radio and display receiver assembly and combination meter assembly. DTC No. Detection Item DTC Detection Condition Trouble Area B1324 Lost Communic ...

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    DIAGNOSTIC TROUBLE CODE CHART Diagnostic Trouble Code Chart DTC No. Detection Item Trouble Area Link B1003 ECU Malfunction Central gateway ECU (network gateway ECU) ...

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