Lexus NX: Diagnosis System

DIAGNOSIS SYSTEM

DESCRIPTION

(a) Automatic high beam system data and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and to repair it.

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.

DIAGNOSIS SYSTEM

(a) If the automatic high beam system malfunctions, the automatic high beam indicator light turns off and "Headlight System Malfunction Visit Your Dealer" is displayed on the multi-information display.

*a

Automatic High Beam Indicator Light

*b

Multi-information Display

HINT:

When the system returns to normal, "Headlight System Malfunction Visit Your Dealer" is no longer displayed on the multi-information display.

READ NEXT:

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Main Body / Trouble

 Fail-safe Chart

FAIL-SAFE CHART AUTOMATIC HIGH BEAM SYSTEM (a) The main body ECU (multiplex network body ECU) operates in fail-safe mode if an abnormal condition such as those listed below has been detected. Item

 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

SEE MORE:

 Accelerator Pedal Sensor

ComponentsCOMPONENTS ILLUSTRATION *1 ACCELERATOR PEDAL SENSOR ASSEMBLY *2 ACCELERATOR PEDAL SENSOR CONNECTOR N*m (kgf*cm, ft.*lbf): Specified torque - - On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE 1. INSPECT ACCELERATOR PEDAL SENSOR ASSEMBLY (a) Connect the Techstr

 Installation

INSTALLATION CAUTION / NOTICE / HINT HINT: Perform "Inspection After Repairs" after replacing the throttle with motor body assembly. Click here PROCEDURE 1. INSTALL THROTTLE WITH MOTOR BODY ASSEMBLY HINT: Perform "Inspection After Repairs" after replacing the throttle with motor body assembly. Cli

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