Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE SIGNAL

Turn ignition switch ON.

Check voltage between climate controlled seat blower motor assembly harness connector and ground.

(+)			(-)	Condition		Voltage (Approx.)
Climate controlled seat blower motor assembly
Connector		Terminal
LH	B206	5	Ground	Climate controlled seat switch	HEAT or COOL	0 - 12*
					Other than above	0
		4			HEAT or COOL	0 - 12*
					Other than above	0
RH	B317	5		Climate controlled seat switch	HEAT or COOL	0 - 12*
					Other than above	0
		4			HEAT or COOL	0 - 12*
					Other than above	0

*: It changes between 12 and 0 V.

NOTE: Wait 1 minute or more after the activation start, and then start the measurement.

Is the inspection result normal?

YES

Replace climate controlled seat blower motor assembly. Refer to Climate Controlled Seat Blower Assembly .

GO TO 2.

CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE CIRCUIT

Turn ignition switch OFF.
Disconnect climate controlled seat control unit connector and climate controlled seat blower motor assembly connector.

Check continuity between climate controlled seat control unit harness connector and climate controlled seat blower motor assembly harness connector.

Climate controlled seat control unit			Climate controlled seat blower motor assembly		Continuity
Connector		Terminal	Connector	Terminal
LH	B217	25	B206	4	Yes
		30		5
RH	B313	25	B317	4
		30		5

Check continuity between climate controlled seat control unit harness connector and ground.

Climate controlled seat control unit			Ground	Continuity
Connector		Terminal
LH	B217	25		No
		30
RH	B313	25
		30

Is the inspection result normal?

YES

Replace climate controlled seat control unit. Refer to Climate Controlled Seat Control Unit .

Repair or replace harness.