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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 Inspection

INSPECTION PROCEDURE 1. INSPECT AIR FUEL RATIO SENSOR (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 1 (HA1A) - 2 (+B) 20°C (68°F) 1.6 to 3.2 Ω If the result is not as specified, r

 Odo/Trip Switch Malfunction

DESCRIPTION The ODO/TRIP display of the combination meter changes each time the trip switch is pressed. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When replacing the combination meter assembly, make sure to replace it with a new one. PROCEDURE 1. READ VALUE USING TECHSTREAM (ODO/TRIP CHAN

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