Toyota CH-R Service Manual: System Diagram


Communication Table

Transmitting ECU


Receiving ECU


Communication Method

Airbag Sensor Assembly

Occupant Detection ECU

  • Crash detection signal
  • Acceleration signal
  • Sensor power supply signal
  • Sensor failure signal
  • Sensor Type signal


Skid Control ECU (Brake Actuator Assembly)

Occupant Detection ECU

  • Vehicle speed signal
  • G sensor signal
  • G sensor zero point error 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
    PRECAUTION GENERAL PRECAUTION (a) The following conditions may be interpreted as a malfunction even though they are normal operation: An object is placed on the passenger seat and the syst ...

    How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the occupant classification system. *: Use the Techstream. PROCEDURE 1. VEHIC ...

    Other materials:

    Toyota CH-R Service Manual > Headlight Dimmer Switch: Inspection
    INSPECTION PROCEDURE 1. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Light Control Switch Tester Connection Condition ...

    Toyota CH-R Service Manual > Airbag System: Short in Front Passenger Side Squib 2nd Step Circuit (B1815/54-B1818/54)
    DESCRIPTION The front passenger side squib 2nd step circuit consists of the airbag sensor assembly and instrument panel passenger without door airbag assembly. The airbag sensor assembly uses this circuit to deploy the airbag when deployment conditions are met. These DTCs are stored when a ma ...

    © 2017-2021 Copyright