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Diagnostic Trouble Code Chart [11/2023 - ]

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 [11/2023 - ]
U115C-87 Lost Communication with ECM/PCM "A" (ch5) Missing Message
  • CAN main/branch bus lines or connector
  • Engine stop and start ECU
  • Brake actuator assembly
  • No. 12 global CAN junction connector
 Refer to DTC U115C-87: Lost Communication with ECM/PCM "A" (ch5) Missing Message; DTC U1170-87: Lost Communication with Brake System Control Module (ch2) Missing Message [11/2023 - ]
U1170-87 Lost Communication with Brake System Control Module (ch2) Missing Message
  • CAN main/branch bus lines or connector
  • Engine stop and start ECU
  • Brake actuator assembly
  • No. 12 global CAN junction connector
 Refer to DTC U115C-87: Lost Communication with ECM/PCM "A" (ch5) Missing Message; DTC U1170-87: Lost Communication with Brake System Control Module (ch2) Missing Message [11/2023 - ]
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