Toyota Yaris: Power Integration System / Fail-safe Chart

Toyota Yaris XP210 (2020-2023) Reapir and Service Manual / Power Source & Network / Power Distribution / Power Integration System / Fail-safe Chart

FAIL-SAFE CHART

FAIL-SAFE FOR SPECIFIC FUNCTIONS

(a) When semiconductor power integration ECU microcomputer have some malfunction, only right head light LO and right smart LDM power source can turn on or off with backup circuit in ignition switch ON. However, right head light LO and right smart LDM power source cannot turn on or off in ignition switch OFF.

    Dtc Check / Clear

    DTC CHECK / CLEAR CHECK DTC (a) Check semiconductor power integration ECU (1) Check for DTCs. Body Electrical > Power Integration No.1 > Trouble Codes (b) Check power distribution box assembly (1) Check for DTCs...

    Data List / Active Test

    DATA LIST / ACTIVE TEST READ DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not...

    Other information:

    Toyota Yaris XP210 (2020-2023) Reapir and Service Manual: Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid (B279986)


    DESCRIPTION If there is a communication malfunction between the ECM and ID code box (immobiliser code ECU), or when the communication ID codes do not match, the ECM stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B279986 Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid Either of the following conditions is met (1 trip detection logic*): A malfunction is detected in the communication or communication lines between the ECM and ID code box (immobiliser code ECU)...

    Toyota Yaris XP210 (2020-2023) Reapir and Service Manual: Installation


    INSTALLATION PROCEDURE 1. INSTALL BRAKE BOOSTER GASKET (a) Install a new brake booster gasket to the brake booster assembly. 2. INSTALL BRAKE BOOSTER ASSEMBLY (a) Temporarily install the brake booster assembly to the vehicle body. NOTICE: Do not apply excessive force to the brake lines...

    Categories

    Turning the Engine Off

    Stop the vehicle completely. Manual transaxle: Shift into neutral and set the parking brake.

    Automatic transaxle: Shift the selector lever to the P position and set the parking brake.

    Press the push button start to turn off the engine. The ignition position is off.

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