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Home >> Lexus >> 2013 >> ES 350 >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering System (Diagnostic Codes & Circuit Tests) >> Power Steering System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module >> Description
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DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module: Description

The power steering ECU assembly receives signals from the ECM and skid control ECU (brake actuator assembly) via the CAN communication system.

DTC No. DTC Detection Condition Trouble Area
U0100 Lost communication with ECM
  • CAN communication system
  • ECM
U0129 Lost communication with skid control ECU
  • CAN communication system
  • Skid control ECU (Brake actuator assembly)
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