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Home >> Toyota >> 2022 >> Corolla Cross L, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Can Communication System (Except HEV) - Diagnostics - Introduction (2 Of 2)) >> CAN COMMUNICATION SYSTEM (for Gasoline Model) >> Diagnostic Trouble Code Chart [11/2022 - 11/2023] >> Diagnostic Trouble Code Chart [11/2022 - 11/2023]

Diagnostic Trouble Code Chart [11/2022 - 11/2023]

WARNING: This page is about a different car, the 2025 Toyota Corolla Cross, 2024 Toyota Corolla Cross, and 2023 Toyota Corolla Cross. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE CHART

DTC No. Detection Item Trouble Area Link
B1020-04 Central Gateway ECU System Internal Failure Central gateway ECU (network gateway ECU) Refer to DTC B1020-04: Central Gateway ECU System Internal Failure [11/2022 - ]
U1170-87 Lost Communication with Brake System Control Module (ch2) Missing Message
  • CAN main/branch bus lines or connector
  • Brake actuator assembly
  • Engine stop and start ECU
  • ECM
  • No. 9 global CAN junction connector
 Refer to DTC U1170-87: Lost Communication with Brake System Control Module (ch2) Missing Message [11/2022 - 11/2023]
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