Lexus NX: Diagnosis System

DIAGNOSIS SYSTEM

CHECK DLC3

(a) Check the DLC3.

Click here

INSPECT AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the power switch off.

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery.

READ NEXT:

 Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. Th

 Mirror Heater does not Operate with Rear Defogger Switch

DESCRIPTION When the rear window defogger switch (mirror heater switch) on the air conditioning control assembly is pressed, the operation signal is transmitted to the air conditioning amplifier assem

 Power Retractable Mirrors do not Operate with Power Retract Mirror Switch

DESCRIPTION When the outer mirror switch assembly (mirror retract switch) is operated, a retract/return signal is received by the main body ECU (multiplex network body ECU). The main body ECU (multipl

SEE MORE:

 Short in D Squib Circuit (B1800-B1803)

DESCRIPTION The driver side squib circuit consists of the airbag ECU assembly, spiral cable sub-assembly and horn button assembly. The circuit instructs the SRS to deploy when deployment conditions are met. These DTCs are stored when a malfunction is detected in the driver side squib circuit. DTC

 Side Camera Current Malfunction (C1684)

DESCRIPTION This DTC is stored if the parking assist ECU judges as a result of its self check that a synchronization problem is occurring in the image signal sent from the passenger side television camera assembly to the parking assist ECU. DTC No. Detection Item DTC Detection Condition Tro

© 2016-2026 Copyright www.lexunx.com