Interior - Climate Controlled Seat Diagnostic Info.

Classification: BT10-006C

Reference: NTB10-026C

Date: September 27, 2011

2009-2012 MAXIMA; CLIMATE CONTROL SEAT(TM) DIAGNOSIS

This bulletin has been amended. The APPLIED VEHICLES section has been updated. Please discard all previous copies of this bulletin.

APPLIED VEHICLES: 2009-2012 Maxima (A35)

SERVICE INFORMATION

If you are working on one or more of the following:

^ The Climate Control Seat (CCS(TM)) does not cool.

^ CCS(TM) does not warm up.

^ CCS(TM) turns off too soon.





Use the REPAIR FLOW CHART above.

NOTE:
There are repair steps in the REPAIR FLOW CHART that may require referencing section J, BODY INTERIOR, SE Seat of the appropriate Electronic Service Manual (ESM).

IMPORTANT:
Follow all cautions, warnings, and notes in the ESM when working on or near a Supplemental Restraint System (SRS), such as an airbag.





PARTS INFORMATION

CLAIMS INFORMATION

Refer to the current Nissan Warranty Flat Rate Manual and use the appropriate claims coding for repairs performed.

COMPONENT INSPECTION











NOTE:
Refer above for components location.

Thermal Electric Device (TED)





Measure Seat Cushion TED resistance across pin 1 (blue wire) and pin 2 (yellow wire) in connector B219. See Figure 1.

Measure Seatback TED resistance across pin 1 (blue wire) and pin 2 (yellow wire) in connector B218. See Figure 1.

NOTE:
Connectors B218 and B219, their pin locations, and wire coloring are identical.

^ Acceptable resistance value: 1.3 - 1.8 ohms.

^ Resistance value given at room temperature, or about 22°C / 72°F.

If resistance value is more or less than listed above, replace the TED.

Thermal Electric Device (TED) Sensor





Measure Seat Cushion TED sensor resistance across pin 3 (green wire) and pin 4 (also green wire) in connector B219. See Figure 2.

Measure Seatback TED sensor resistance across pin 3 (green wire) and pin 4 (also green wire) in connector B218. See Figure 2.

NOTE:
Connectors B218 and B219, their pin locations, and wire coloring are identical.

^ Acceptable resistance value: approximately 1000 ohms.

^ Resistance value given at room temperature, or about 22°C / 72°F.

If resistance value is more or less than listed above, replace the TED*

* The sensor is part of the TED. To replace the sensor, replace the TED.

Climate Controlled Seat Blower Motor

Check 1:





Measure blower motor resistance across pin 2 (red wire) and pin 4 (black wire). See Figure 3.

^ Acceptable resistance value: 600 - 800 ohms.

If resistance value is more or less than listed above, replace the blower motor.

If resistance value is acceptable, go to Check 2.

Check 2:





Measure blower motor resistance across pin 3 (white wire) and pin 4 (black wire). See Figure 4.

^ Acceptable resistance value: greater than 250000 (250K) ohms.

If resistance value is 250000 (250K) ohms or less, replace the blower motor.