Lexus NX: 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 suspected areas in the order they are listed. Replace parts as necessary.

Heated Steering Wheel System

Symptom

Suspected Area

Link

Steering wheel does not heat up when heated steering wheel switch is pressed

Refer to "Steering wheel does not heat up when heated steering wheel switch is pressed"

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 Terminals Of Ecu

TERMINALS OF ECU HINT: Perform the inspection from the harness side with the connectors connected. STEERING HEATER AND VIBRATION ECU (a) Measure the voltage or resistance according to the value(s) in

 Fail-safe Chart

FAIL-SAFE CHART MALFUNCTION DETECTION (a) Operation when malfunction is detected Content Operation Heater failure Overcurrent detection of drive element Heater output off Overheating

 Steering Wheel does not Heat Up When Heated Steering Wheel Switch is Pressed

DESCRIPTION Click here WIRING DIAGRAM Click here CAUTION / NOTICE / HINT HINT: Inspect the fuses for circuits related to this system before performing the following inspection procedure. The

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 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Inspect the fuses and relays related to this system before inspecting the suspected areas below. If the problem only occurs in certain locations or at certain times of day, check for wave interference. If optional components are installed, check for wave interfere

 Terminals Of Ecu

TERMINALS OF ECU Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition *1: w/ Manual (SOS) Switch *2: It is connected, but not used *3: w/o Manual (SOS) Switch #: There is no wire color information I151-1 (GND1) - Body ground W-B - Body ground

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