Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000028ABC
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 - 03/2023]
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSTIC TROUBLE CODE CHART; 2023 MY Corolla Corolla Hatchback GR Corolla [11/2022 - 03/2023]

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)

2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): B102004; Central Gateway ECU System Internal Failure

U115C87

Lost Communication with ECM/PCM "A" (ch5) Missing Message
  • CAN main bus lines or connector
  • ECM
  • Brake actuator assembly
  • No. 11 can junction connector

2023 MY Corolla Corolla Hatchback GR Corolla [11/2022 - 03/2023]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): U115C87; Lost Communication with ECM/PCM "A" (ch5) Missing Message