Toyota CH-R Service Manual: Fail-safe Chart

FAIL-SAFE CHART

FAIL-SAFE FUNCTION (for LED Headlight)

(a) Headlight ECU sub-assembly

(1) The headlight ECU sub-assemblies stop light operation if any of the following malfunctions are detected.

Malfunction

Multi-information Display Warning

DTC Output

Lighting on/off

LED light source malfunction

Low beam

Displayed

Output

High beam

Not displayed

Output

Other than above (communication with main body ECU (multiplex network body ECU))

Displayed

Output

Automatic headlight beam level control system

Displayed

Output

Power supply

IG voltage line malfunction

Displayed

Output

Other than an IG voltage line malfunction

Not displayed

Not output

    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Main body / Tr ...

    Freeze Frame Data
    FREEZE FRAME DATA FREEZE FRAME DATA (for LED Headlight) (a) Whenever a lighting system DTC is stored, the headlight ECU sub-assembly LH stores the current vehicle state as freeze frame data. CHEC ...

    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 > Manual Headlight Beam Level Control System: Problem Symptoms Table
    PROBLEM SYMPTOMS TABLE 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 check ...

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