Toyota Yaris: Can Communication System / Central Gateway ECU System Internal Failure (B102004)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Power Source & Network / Networking / Can Communication System / Central Gateway ECU System Internal Failure (B102004)

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

B102004

Central Gateway ECU System Internal Failure

A malfunction in the non-volatile storage of the central gateway ECU (network gateway ECU) is detected.

Central gateway ECU (network gateway ECU)

Central Gateway

PROCEDURE

1.

RECONFIRM DTC OUTPUT

Body Electrical > Central Gateway > Trouble Codes

Result

Proceed to

B102004 is output

A

B102004 is not output

B

A

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

B

USE SIMULATION METHOD TO CHECK

    Diagnostic Trouble Code Chart

    DIAGNOSTIC TROUBLE CODE CHART Diagnostic Trouble Code Chart DTC No. Detection Item Trouble Area Link B102004 Central Gateway ECU System Internal Failure Central gateway ECU (network gateway ECU) U117087 Lost Communication With Brake System Control Module(ch2) Missing Message CAN main/branch bus lines or connector Engine stop and start ECU Brake actuator assembly Central gateway ECU (network gateway ECU) No...

    Lost Communication With Brake System Control Module(ch2) Missing Message (U117087)

    DESCRIPTION The brake actuator assembly communicates with the ECM and engine stop and start ECU. When the brake actuator assembly does not receive data from the engine stop and start ECU, the engine stop and start ECU stores DTC U117087...

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    Supplemental Restraint System (SRS) Precautions

    The front and side supplemental restraint systems (SRS) include different types of air bags. Please verify the different types of air bags which are equipped on your vehicle by locating the “SRS AIRBAG” location indicators. These indicators are visible in the area where the air bags are installed.

    The air bags are installed in the following locations:

    The steering wheel hub (driver air bag) The front passenger dashboard (front passenger air bag) The outboard sides of the front seatbacks (side air bags) The front and rear window pillars, and the roof edge along both sides (curtain air bags)

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