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Home >> Toyota >> 2022 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 425 (Can Communication System (Except HEV) (Early 2023, TMC) - Circuit Tests (1 Of 4) & Diagnostic Codes) >> CAN COMMUNICATION SYSTEM (for Gasoline Model TMC Made) >> Main Body ECU Communication Stop Mode [09/2022 - 11/2022] >> Description

Main Body ECU Communication Stop Mode [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.
Detection Item Symptom Trouble Area
Main Body ECU Communication Stop Mode Communication stop for "Main Body" is indicated on the "Communication Bus Check" screen of the GTS.
Refer to DIAGNOSIS SYSTEM [09/2022 - 11/2022]
  • Main body ECU (multiplex network body ECU) main line or connector
  • Power source circuit of main body ECU (multiplex network body ECU) or power distribution box assembly
  • Main body ECU (multiplex network body ECU) or power distribution box assembly ground circuit
  • Main body ECU (multiplex network body ECU) or power distribution box assembly
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