Toyota CH-R Service Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

  • Before replacing the main body ECU (multiplex network body ECU), refer to registration.*1

    *1: w/ Smart Key System

  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
  • If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Learning.

    Click here

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Automatic High Beam System

Symptom

Suspected Area

Link

Automatic high beam indicator on the combination meter assembly does not illuminate

Check operating conditions

Check meter / gauge system

Automatic high beam switch circuit

Headlight dimmer switch circuit

Combination meter assembly

Forward recognition camera

Main body ECU (Multiplex network body ECU)

Automatic high beam system does not operate

Check operating conditions

Check Data List (Auto H Beam STS)

Check that the low beams and high beams operate manually

-

Check automatic light control system operation

Automatic high beam switch circuit

Headlight dimmer switch circuit

Forward recognition camera power source circuit

Forward recognition camera

Main body ECU (Multiplex network body ECU)

    Operation Check
    OPERATION CHECK AUTOMATIC HIGH BEAM SYSTEM OPERATION CHECK (a) Check the operation of the automatic high beam indicator light. *a Automatic High Beam Indicator Light ...

    Terminals Of Ecu
    TERMINALS OF ECU CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *A Main Body ECU (Multiplex Network Body ECU) with 2 Connecto ...

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