Lexus NX: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Automatic High Beam System

DTC No.

Detection Item

Link

B124B

Automatic High Beam System

B124C

Automatic High Beam Camera

U023A

Lost Communication with Front Camera Module

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 Vehicle Control History

VEHICLE CONTROL HISTORY CHECK VEHICLE CONTROL HISTORY HINT: The vehicle control history data stores the history of the reject function and system protection operations. for Triple Beam Headlight: C

 Automatic High Beam System (B124B)

DESCRIPTION The main body ECU (multiplex network body ECU) determines the status of the automatic high beam system based on the automatic high beam system signal from the forward recognition camera.

 Automatic High Beam Camera (B124C)

DESCRIPTION The main body ECU (multiplex network body ECU) detects a high beam headlight illumination request signal of the automatic high beam system from the forward recognition camera. DTC No.

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 Reassembly

REASSEMBLY 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. INSTALL NO. 2 ROOF CARRIER PROTECTOR (a) Clean the roof rack surface. (1) Remove the double-sided tape from the roof rack. (2) Wipe off any tap

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspect

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