Toyota CH-R Service Manual: Problem Symptoms Table

Toyota CH-R Service Manual / Lighting (ext) / Automatic Headlight Beam Level Control System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.

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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 Headlight Beam Level Control System

Symptom

Suspected Area

Link

Automatic headlight beam level control system does not operate (Left Headlight)

Headlight Unit Assembly LH*1

Headlight Unit Assembly LH*2

Headlight ECU sub-assembly LH

Automatic headlight beam level control system does not operate (Right Headlight)

Headlight Unit Assembly RH*1

Headlight Unit Assembly RH*2

Headlight ECU sub-assembly RH

Initialization cannot be performed

CAN communication system

Headlight ECU sub-assembly LH

  • *1: for Halogen Headlight
  • *2: for LED Headlight
    Initialization
    INITIALIZATION NOTICE: The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced du ...

    Diagnosis System
    DIAGNOSIS SYSTEM DESCRIPTION (a) Automatic headlight beam level control system data and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the ...

    Other materials:

    Toyota CH-R Service Manual > Can Communication System: Check Bus 5 Line for Short to GND
    DESCRIPTION There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and ...

    Toyota CH-R Service Manual > Meter / Gauge System: Open in Turn Signal Circuit (B1507,B1508)
    DESCRIPTION These DTCs are stored when the combination meter assembly detects an open in a turn signal light circuit, or a short in a turn signal light circuit or the hazard warning light circuit. DTC No. Detection Item DTC Detection Condition Troubl ...

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