Lexus NX: Diagnosis System

DIAGNOSIS SYSTEM

CHECK DLC3

(a) Check the DLC3.

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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.

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 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

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 Rear Left Center Sensor Malfunction (C1AE7)

DESCRIPTION The rear center ultrasonic sensor (RLC sensor) is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear center ultrasonic sensor (RLC sensor). If the rear center ultrasonic sensor (RLC sensor) has an open circuit or oth

 Rear Door Courtesy Switch Circuit

DESCRIPTION The fold seat control ECU receives the switch operation signal, driving condition signal and rear door open/close signal. Then the fold seat control ECU actives the rear seat according to these signals. WIRING DIAGRAM PROCEDURE 1. INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY

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