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:

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    DESCRIPTION The main body ECU (multiplex network body ECU) controls the front fog lights. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses and bulbs for circuits related to this system before performing the following procedure. Before replacing the main body EC ...

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