Lexus NX: 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 detection of drive element

Heater output off

Power failure

Low-voltage detection

Heater output off

Over-voltage detection

Heater output off

Heater OFF timer

30 minutes after heated steering wheel system is turned on

Heater output off

(b) Malfunction detection conditions

(1) When an open or short in the steering wheel heater unit thermistor continues for 2 seconds or more.

(2) When the steering heater switch is pressed continuously for 10 seconds or more.

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 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

 Multiplex Tilt And Telescopic Ecu

 Components

COMPONENTS ILLUSTRATION *1 DECK FLOOR BOX LH *2 REAR DECK FLOOR BOX *3 NO. 3 DECK BOARD SUB-ASSEMBLY *4 NEGATIVE AUXILIARY BATTERY TERMINAL N*m (kgf*cm, ft.*lbf): Specified

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 Installation

INSTALLATION PROCEDURE 1. INSTALL TRIP SWITCH (LIGHT CONTROL RHEOSTAT) (a) Attach the 2 claws to install the trip switch (light control rheostat). 2. INSTALL NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY Click here 3. INSTALL INSTRUMENT SIDE PANEL LH Click here

 Rear Door LH ECU Communication Stop (B2324)

DESCRIPTION This DTC is output when LIN communication between the rear power window regulator motor assembly LH and main body ECU (multiplex network body ECU) stops for 10 seconds or more. DTC No. Detection Item DTC Detection Condition Trouble Area B2324 Rear Door LH ECU Communication

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