Lexus NX manuals

Lexus NX: Lost Communication with EV ECU (U0100,U0129,U0131,U0142,U0151,U0163,U0182,U023A)

Lexus NX Service Manual / Vehicle Interior / Meter / Gauge / Display / Meter / Gauge System / Lost Communication with EV ECU (U0100,U0129,U0131,U0142,U0151,U0163,U0182,U023A)

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U0100

Lost Communication with EV ECU

Both conditions are met:

  • IG voltage is 10.5 V or higher.
  • No communication with the ECM or hybrid vehicle control ECU continues for 2 seconds or more.
  • ECM
  • Hybrid vehicle control ECU
  • CAN communication system
  • Combination meter assembly

U0129

Lost Communication with Brake System Control Module

Both conditions are met:

  • IG voltage is 10.5 V or higher.
  • No communication with the brake booster with master cylinder assembly (skid control ECU) continues for 3 seconds or more.
  • Brake booster with master cylinder assembly (skid control ECU)
  • CAN communication system
  • Combination meter assembly

U0131

Lost Communication with Power Steering Control Module

Both conditions are met:

  • IG voltage is 10.5 V or higher.
  • No communication with the power steering ECU assembly continues for 3 seconds or more.
  • Power steering ECU assembly
  • CAN communication system
  • Combination meter assembly

U0142

Lost Communication with Body Control Module "B"

Both conditions are met:

  • IG voltage is 10.5 V or higher.
  • No communication with the main body ECU (multiplex network body ECU) continues for 3 seconds or more.
  • Main body ECU (multiplex network body ECU)
  • CAN communication system
  • Combination meter assembly

U0151

Lost Communication with Restraints Control Module

Both conditions are met:

  • IG voltage is 10.5 V or higher.
  • No communication with the Airbag ECU assembly continues for 10 seconds or more.
  • Airbag ECU assembly
  • CAN communication system
  • Combination meter assembly

U0163

Lost Communication with Navigation Control Module

Both conditions are met:

  • IG voltage is 10.5 V or higher.
  • No communication with the radio receiver assembly continues for 10 seconds or more.
  • Radio receiver assembly
  • CAN communication system
  • Combination meter assembly

U0182

Lost Communication with Lighting Control Module Front

Both conditions are met:

  • IG voltage is 10.5 V or higher.
  • No communication with the headlight ECU sub-assembly LH continues for 10 seconds or more.
  • Headlight ECU sub-assembly
  • CAN communication system
  • Combination meter assembly

U023A

Lost Communication with Front Camera Module

Both conditions are met:

  • IG voltage is 10.5 V or higher.
  • No communication with the forward recognition camera continues for 10 seconds or more.
  • Forward recognition camera
  • CAN communication system
  • Combination meter assembly

PROCEDURE

1.

CHECK FOR DTC

(a) Check for DTCs.

Click here

Body Electrical > Combination Meter > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

GO TO CAN COMMUNICATION SYSTEM

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