Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Central Gateway ECU System Internal Failure (B102004)

Toyota Corolla Cross (2022-2024) Service Manual / Power Source & Network / Networking / Can Communication System (for Gasoline Model) / Central Gateway ECU System Internal Failure (B102004)

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

Priority

Note

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

A

DTC Output from

  • Central gateway ECU (network gateway ECU)

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

    READ NEXT:

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

    DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Note U117087 Lost Communication with Brake S

     Check CAN Communication Connection

    DESCRIPTION Symptom Trouble Area Check CAN Communication Connection CAN main bus line, CAN branch line or connector Power source circuit of

     Skid Control ECU Communication Stop Mode

    DESCRIPTION Detection Item Symptom Trouble Area Skid Control ECU Communication Stop Mode Communication stop for "Skid Control (ABS/VS

    SEE MORE:

     Installation

    INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION) Procedure Part Name Code 1 HEADLIGHT ECU SUB-ASSEMBLY - - - 2 HEADLIGHT ASSEMBLY - - - - 3 PERFORM INITIALIZATION - - - *1

     Terminals Of Ecu

    TERMINALS OF ECU NOTICE: When performing an inspection, make sure that "ACC Customize" is set to "ON" using the multi-display. Click here When "ACC Customize" is set to "ON" (ACC supply power enabled), the certification ECU (smart key ECU assembly) controls the ACC relay on and off. When

    © 2020-2024 Copyright www.tcorollacross.com