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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 321 (Can Communication System (Except HEV) (Early 2023, TMC) - Circuit Tests (1 Of 4) & Diagnostic Codes) >> CAN COMMUNICATION SYSTEM (for Gasoline Model TMC Made) >> DTC U115C-87: Lost Communication with ECM/PCM "A" (ch5) Missing Message [09/2022 - 11/2022] >> Description

DTC U115C-87: Lost Communication with ECM/PCM "A" (ch5) Missing Message [09/2022 - 11/2022]: Description

WARNING: This page is about a different car, the 2023 Toyota GR Corolla and 2023 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
DTC No. Detection Item DTC Detection Condition Trouble Area Note
U115C-87 Lost Communication with ECM/PCM "A" (ch5) Missing Message Communication stops between the brake actuator assembly and the ECM.
  • CAN main bus lines or connector
  • ECM
  • Brake actuator assembly
  • No. 11 can junction connector
 DTC Output from 
  • ECM
  • Brake actuator assembly
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