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Home >> Lexus >> 2017 >> CT 200h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System (Diagnostic Codes & Circuit Tests) >> Can Communication System >> DTC U0129: Lost Communication with Brake System Control Module [08/2014 - ] >> Description

DTC U0129: Lost Communication with Brake System Control Module [08/2014 - ]: Description

DTC No. DTC Detection Condition Trouble Area
U0129 No communication from the skid control ECU continues.
  • Skid control ECU branch line or connector
  • Power source circuit of skid control ECU
  • Skid control ECU (Brake booster with master cylinder assembly)

HINT: 

This diagnosis procedure is for when DTC U0129 is output by the power management control ECU (Techstream display: PM2 Gateway).