Toyota Corolla Cross Owners & Service Manuals

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

Toyota Corolla Cross (2022-2026) Service Manual / Power Source & Network / Networking / Can Communication System (for Hev Model) / Central Gateway ECU System Internal Failure (B102004)

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

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)

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 Drive Motor Control Module "A" (U011000,U111A87,U115087,U115487,U115887,U117008,U117087)

    DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Note U011000 Lost Communication with Drive M

     Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message (U011187,U01BD87,U115087,U117B87)

    DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Note U011187 Lost Communication with Hybrid/

     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

    SEE MORE:

     Removal

    REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REOVAL) Procedure Part Name Code 1 REAR WHEEL - - - - 2 REAR STABILIZER LINK ASSEMBLY LH 488

     Hill-start assist control

    When the engine is stopped by the Stop & Start system when the vehicle is on an incline, when the brake pedal is released, brake force is temporarily maintained to prevent the vehicle from rolling backwards before the engine is restarted and drive force is generated. When drive force is generat

    © 2020-2026 Copyright www.tcorollacross.com PT NL