NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): B102004; Central Gateway ECU System Internal Failure; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ]

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM10000000259QX
Model Year Start: 2023	Model: Corolla	Prod Date Range: [09/2022 - ]
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): B102004; Central Gateway ECU System Internal Failure; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ]

DTC

B102004

Central Gateway ECU System Internal Failure

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
DTC B102004 is not output from the central gateway ECU (network gateway ECU)	A
DTC B102004 is output from the central gateway ECU (network gateway ECU)	B

A

USE SIMULATION METHOD TO CHECK

B

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)