Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026BPU
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model TMC Made): DIAGNOSTIC TROUBLE CODE CHART; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]

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 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model TMC Made): 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 [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model TMC Made): U115C87; Lost Communication with ECM/PCM "A" (ch5) Missing Message