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Home >> Lexus >> 2020 >> NX 300h Base >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering System (For Manual Tilt And Manual Telescopic Steering Column) - Diagnostic Codes & Circuit Tests >> POWER STEERING SYSTEM (for Manual Tilt and Manual Telescopic Steering Column) >> DTC U0129/42: Lost Communication with Brake System Control Module; DTC U0293/41: Lost Communication with Hybrid Control Module; DTC U1104/45: Lost Communication with Driving Support ECU [09/2017 - 05/2019] >> Description
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DTC U0129/42: Lost Communication with Brake System Control Module; DTC U0293/41: Lost Communication with Hybrid Control Module; DTC U1104/45: Lost Communication with Driving Support ECU [09/2017 - 05/2019]: Description

The power steering ECU assembly receives signals from the hybrid vehicle control ECU, skid control ECU(brake booster with master cylinder assembly) and forward recognition camera via the CAN communication system.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition
U0129/42 Lost Communication with Brake System Control Module Lost communication with skid control ECU (brake booster with master cylinder assembly)
  • CAN communication system
  • Skid control ECU (brake booster with master cylinder assembly)
On After normal confirmation
U0293/41 Lost Communication with Hybrid Control Module Lost communication with hybrid vehicle control ECU
  • CAN communication system
  • Hybrid vehicle control ECU
On After normal confirmation
U1104/45 Lost Communication with Driving Support ECU Lost communication with Forward recognition camera
  • CAN communication system
  • Forward recognition camera
Off After normal confirmation