Lexus NX: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Vehicle Proximity Notification System

DTC No.

Detection Item

Link

B1350

Speaker Circuit

U0129

Lost Communication with Brake System Control Module

U0140

Lost Communication with Body Control Module

U0293

Lost Communication with Hybrid/EV Powertrain Control Module

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 Speaker Circuit (B1350)

DESCRIPTION The vehicle approaching speaker assembly circuit consists of the vehicle approaching speaker controller and vehicle approaching speaker assembly. This DTC is stored when a malfunction is d

 Lost Communication with Brake System Control Module (U0129,U0140,U0293)

DESCRIPTION These DTCs are stored when the CAN communication system is malfunctioning. DTC No. Detection Item DTC Detection Condition Trouble Area U0129 Lost Communication with Brake Sy

 There is No Sound Made

DESCRIPTION Based on signals received from each ECU, the vehicle approaching speaker controller outputs warning sounds through the vehicle approaching speaker assembly. WIRING DIAGRAM CAUTION / NOTIC

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 Disassembly

DISASSEMBLY PROCEDURE 1. PRECAUTION NOTICE: Be sure to read Precaution thoroughly before servicing. Click here Do not reuse parts which have reduced fastening ability due to thread damage. When installing components, make sure that the wire harness is not pinched or pulled. Do not use sol

 Removal

REMOVAL CAUTION / NOTICE / HINT NOTICE: While the auxiliary battery is connected, even if the power switch is off, the brake control system activates when the brake pedal is depressed or any door courtesy switch turns on. Therefore, when servicing the brake system components, do not operate the brak

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