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Home >> Lexus >> 2019 >> NX 300 Base, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering System (Manual Tilt & Manual Telescopic Steering Column) - Diagnostic Codes & Symptom Tests >> POWER STEERING SYSTEM (for Manual Tilt and Manual Telescopic Steering Column) >> DTC U0100-41: Lost Communication with ECM/PCM "A"; DTC U0129-42: Lost Communication with Brake System Control Module [10/2014 - 09/2017] >> Description
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DTC U0100-41: Lost Communication with ECM/PCM "A"; DTC U0129-42: Lost Communication with Brake System Control Module [10/2014 - 09/2017]: 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. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition
U0100/41 Lost Communication with ECM/PCM "A" Lost communication with ECM
  • CAN communication system
  • ECM
On After normal confirmation
U0129/42 Lost Communication with Brake System Control Module Lost communication with skid control ECU (brake actuator assembly)
  • CAN communication system
  • Skid control ECU (brake actuator assembly)
On After normal confirmation