Nissan Maxima Service and Repair Manual: Climate controlled seat blower motor

Description

Sends airflow to the seat cushion and seatback.

Component Function Check

1.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR FUNCTION

Turn the climate controlled seat switch to the H (Heat) LO, MED, and HI positions and the C (Cool) LO, MED, and HI positions. Check that the climate controlled seat blower motor operates at low, medium and high speed.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to SE-44, "Wiring Diagram".

1.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR

Perform climate controlled seat blower motor component inspection. Refer to SE-14, "Component Inspection (Climate Controlled Seat Blower Motor)".

2.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR POWER SUPPLY

1. Turn ignition switch ON.
2. Check voltage between climate controlled seat blower motor connector B220 terminal 2 and ground.

3.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect climate controlled seat blower motor connector and climate controlled seat control unit connector B212.
3. Check continuity between climate controlled seat blower motor connector B220 (A) terminal 2 and climate controlled seat control unit connector B212 (B) terminal 7.

4. Check continuity between climate controlled seat blower motor connector B220 (A) terminal 2 and ground.

4.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR SPEED CONTROL SIGNAL

Check voltage between climate controlled seat blower motor connector B220 terminal 3 and ground.

5.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR SPEED CONTROL SIGNAL CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect climate controlled seat blower motor connector and climate controlled seat control unit connector B212.
3. Check continuity between climate controlled seat blower motor connector B220 (A) terminal 3 and climate controlled seat control unit connector B212 (B) terminal 4.

4. Check continuity between climate controlled seat blower motor connector B220 (A) terminal 3 and ground.

6.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR GROUND CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect climate controlled seat blower motor connector and climate controlled seat control unit connector B212.
3. Check continuity between climate controlled seat blower motor connector B220 (A) terminal 4 and climate controlled seat control unit connector B212 (B) terminal 6.

Component Inspection (Climate Controlled Seat Blower Motor)

1.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR PART 1

1. Turn ignition switch OFF.
2. Disconnect climate controlled seat blower motor connector.
3. Measure the resistance of the climate controlled seat blower motor between terminals 2 and 4.

2.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR PART 2

Measure the resistance of the climate controlled seat blower motor between terminals 3 and 4.