REAR SEAT WARMER SWITCH INSPECTION

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1.  Remove the rear seat warmer switch. (See REAR SEAT WARMER SWITCH REMOVAL/INSTALLATION.)

2.  Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).

•  If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.

―  If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the rear seat warmer switch. (See REAR SEAT WARMER SWITCH REMOVAL/INSTALLATION.)

Terminal Voltage Table (Reference)

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Terminal	Signal	Connected to	Measurement conditions		Voltage (V)	Inspection item(s)
A	IG1	•  Ignition relay (IG1_STAB)*1 •  IG1 realy*2	Ignition switch ON (engine off or on)		B+	•  Ignition relay (IG1_STAB)*1 •  IG1 realy*2
			Ignition switched OFF (LOCK)		1.0 or less
B	Power supply	ROOM 15 A fuse	Under any condition		B+	ROOM 15 A fuse
C	Rear seat warmer signal	Rear seat warmer control unit	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
D	Instrument cluster signal	Instrument cluster signal	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
E	GND	Body ground	Under any condition		1.0 or less	Body ground
F	—	—	—		—	—
G	—	—	—		—	—
H	—	—	—		—	—