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 SENSOR 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	3	Ground	Climate controlled seat operated	1 - 5
RH	B317

Is the inspection result normal?

YES

GO TO 3.

GO TO 2.

CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE SENSOR 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	B216	2	B206	3	Yes
RH	B312		B317

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

Climate controlled seat control unit			Ground	Continuity
Connector		Terminal
LH	B216	2		No
RH	B312

Is the inspection result normal?

YES

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

Repair or replace harness.

CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE SENSOR GROUND 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	B216	17	B206	2	Yes
RH	B312		B317

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

Climate controlled seat control unit			Ground	Continuity
Connector		Terminal
LH	B216	17		No
RH	B312

Is the inspection result normal?

YES

GO TO 4.

Repair or replace harness.

CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE SENSOR
Check seat cushion thermal electric device sensor. Refer to Component Inspection .

Is the inspection result normal?

YES

Check intermittent incident. Refer to Intermittent Incident .

NO

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