Lexus LX - Heated Steering Wheel System Steering Wheel does not Heat Up When Heated Steering Wheel Switch is Pressed; INSPECTION PROCEDURE

HEATED STEERING WHEEL SYSTEM > Steering Wheel does not Heat Up When Heated Steering Wheel Switch is
Pressed
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DESCRIPTION
The heater unit heats the steering wheel when the combination switch is operated.
HINT:
The heater unit is built into the steering wheel.
As the steering wheel cannot be disassembled, replace the steering wheel when there is a malfunction in the heater unit.
WIRING DIAGRAM
INSPECTION PROCEDURE
1.CHECK COMBINATION SWITCH ASSEMBLY (LED OPERATION)
a. Check the illumination condition of the LED.
Result:
LED Condition Proceed to
Blinks
Engine switch on
(IG)
Combination
switch is pushed
and held
continuously for 10
seconds or more
A
Illuminates
Engine switch on
(IG)
Combination
switch is pushed
B
Does not blink or
illuminate
Engine switch on
(IG)
Combination
switch is pushed
B