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DTC U0129: Lost Communication with Brake System Control Module [02/2014 - 11/2016]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area Note
U0129 Lost Communication with Brake System Control Module No communication from the skid control ECU assembly continues.
  • Skid control ECU assembly branch line or connector
  • Power source circuit of skid control ECU assembly
  • Skid control ECU assembly ground circuit
  • Skid control ECU assembly
HINT: 
As there is no sub bus monitor ECU for sub bus 15, each ECU detects communication stops and stores DTCs.

HINT: 

This diagnosis procedure is for when DTC U0129 is output only by the power management control ECU (Techstream display: Hybrid Control).