Lexus NX manuals

Lexus NX: Lost Communication with Brake System Control Module (U0129,U0293,U1104)

Lexus NX Service Manual / Steering / Power Assist Systems / Power Steering System (for Manual Tilt And Manual Telescopic Steering Column) / Lost Communication with Brake System Control Module (U0129,U0293,U1104)

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

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

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

Lost Communication with Driving Support ECU

Lost communication with Forward recognition camera
  • CAN communication system
  • Forward recognition camera

Off

After normal confirmation

PROCEDURE

1.

GO TO CAN COMMUNICATION SYSTEM

(a) Go to CAN Communication System.

Click here

NEXT

END

READ NEXT:

 Power Steering Warning Light Circuit

DESCRIPTION The power steering ECU is connected to the combination meter via CAN communication. If any of the following conditions are detected, the power steering warning light remains on. The cir

 Power Steering System (for Power Tilt And Power Telescopic Steering Column)

 Precaution

PRECAUTION HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM (a) This vehicle is equipped with a Supplemental Restraint System (SRS). Failure to carry out service operations in the correct sequence could cau

SEE MORE:

 Cruise Control Switch Circuit

DESCRIPTION The cruise control main switch outputs the cruise control power supply switch signal and each operation switch signal to the hybrid vehicle control ECU. The hybrid vehicle control ECU performs cruise control according to the signal from the cruise control main switch. WIRING DIAG

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / AFS / Trouble Codes. Body Electrical > AFS > Trouble Codes (e) Check for DTCs. CLEAR DTC (a) Connect the Techstrea

© 2016-2025 Copyright www.lexunx.com