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DTC U1171-87: Lost Communication with Brake System Control Module (ch3) Missing Message [03/2024 - ]: Description

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DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority Note
U1171-87 Lost Communication with Brake System Control Module (ch3) Missing Message Communication stops between the absorber control ECU and the No. 2 skid control ECU (brake actuator assembly).
  • CAN main/branch bus lines or connector
  • Absorber control ECU
  • No. 2 skid control ECU (brake actuator assembly)
  • No. 7 CAN junction connector
  • No. 2 CAN junction terminal
 Adaptive Variable Suspension System B DTC Output from
  • Absorber control ECU
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