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

Lexus NX Service Manual / Steering / Power Assist Systems / Power Steering System (for Power Tilt And Power 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

Note

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

 Steering Column

 Heated Steering Wheel Controller (w/ Steering Wheel Vibration)

SEE MORE:

 Diagnosis System

DIAGNOSIS SYSTEM DESCRIPTION (a) The certification ECU (smart key ECU assembly) and hybrid vehicle control ECU control the vehicle immobiliser system functions. Immobiliser system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a

 Operation Check

OPERATION CHECK INSPECT ILLUMINATED ENTRY SYSTEM OPERATION NOTICE: Perform this inspection with the customizable parameters set to the initial settings. HINT: When inspecting the following functions, make sure that the map light switch and spot light switch are in the DOOR position. (a) The interior

© 2016-2024 Copyright www.lexunx.com