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

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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

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 Disassembly

DISASSEMBLY CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure listed below is for the LH side. PROCEDURE 1. REMOVE FRONT DOOR UPPER OUTSIDE MOULDING PAD (a) Remove the front door upper outside moulding pad.

 Voice is not Recognized

PROCEDURE 1. CHECK CONDITION (a) While paying attention to the condition of the spoken voice command, perform a voice recognition operation. OK: Voice command is recognized normally. HINT: When the voice command is recognized, the content of the voice command is displayed in the voice r

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