: '06 DTS Performance...Heated Seats Don't Do Squat



bluescat
12-06-10, 07:20 PM
Picked up my '06 Performance last Friday...finally.

The "Tour of Features" cd that came with it says that the front heated/cooled seats are forced air instead of the typical electric grid. Problem is, neither seat seems to get the least bit warm no matter how long I have the seat on. except for the normal transfer of heat from my big fat butt to the seat. Where is the fan located in the seats? Should I be able to hear it click on and run when I turn the seat heater on? Or, on the other hand, are the heated seats just normally totally ineffective?

I'm sure I'll have lots of other questions before I understand the quirks of this car, but this is a good place to start.

Thanks!

Yellowelephant
12-06-10, 07:53 PM
My heat/cool seats work great, they heat almost instantly. The fan is located in the back of the seat. If you pull the panel off the back you will see the vents. Ops, that is if you have bucket seats like mine :worship: I do not hear the fan but I can't hear anything very well :( The cooling function is as quick as the heat. Check the fuses or connections (plugs) in the seat itself.

tedcmiller
12-06-10, 08:22 PM
Yellowelephant is correct. The heated and cooled seats work fine and the fans (there is more than one - one in the back and one in the seat) are located in the seats. Contrary to popular belief, the heating and cooling of the seats is not provided by the car AC system. The heating and cooling of the seats is done by solid state modules that get hot or cold depending on the direction of current flow through the module. At least that is true for '08 DTSs. It is probably the same on '06s.

TulsaVic
12-06-10, 08:44 PM
On the highest setting, my seat heater will toast your derriere, through a coat, to the point of being downright uncomfortable. And the cooling function, well, imagine sitting on a cold slab of cement with a wet bathing suit and that's how cool the feel when on the highest setting. Something is definitely wrong with your system.....

bluescat
12-06-10, 09:40 PM
OK, so mine aren't working. Lights come on (both front seats) but no heat (both front seats). Any suggestions where I should (have my mechanic) begin? While he is a brilliant mechanic, actually a jet mechanic and responsible for a fleet of cargo jets, he isn't a Caddy guy, so it is helpful if I can point him in the right direction to get started.

Again, thanks!

ltdltc
12-07-10, 09:58 AM
Best bet is to get a service manual so you can get an idea of what to troubleshoot. Mine had an issue and a module and wiring harness had to be replaced.

As far a performance of the heating function of the seat is concerned, I find that heated wire elements are superior to ventilated seats.

Superjim
12-07-10, 12:08 PM
Both my heated and cooled seats work great.
The heated part will roast you. :)

I second the idea of getting the factory service manual.
They can be found fairly inexpensively on ebay...

The factory manuals are made by HELM...
You can also buy new ones an HELMINC.COM

Texas Jim

Yellowelephant
12-07-10, 09:02 PM
You can purchase a manual in disk format on e-bay for a lot less than the paper version. I am not sure if these are legal copies or not but the reviews are mostly positive. Search: Cadillac CTS DTS STS Service Repair Manual 2005 2006 and it should come up with a California supplier. Info only, as I am not recommending this.

tedcmiller
12-09-10, 11:27 PM
Yeah, the heated-wire version of heated seats probably does work better than the hot-air version, but then you don't have the cooling option. True, you could do both, but then it would be a lot more expensive (heating-by-wire and cooling-by-module).

Beardare2002
01-30-12, 02:51 PM
I have a 2007 DTS. When I turn on the heated or cooled funtion on either seat, neither one works. I hear a click from under the seat and seconds later a second click and nothing happens. If I continue to push the control buttons on the door, no other clicks are heard. Anyone had this problem and know what might be wrong? Do both seats share the same control module? I would appreciate any help!

Cadillac Cust Svc
01-30-12, 03:50 PM
Beardare2002,
If you would send me your name and VIN number I will look into this for you.
Breanne
Cadillac Customer Service

AEC2007
01-31-12, 10:22 AM
Hi Breanne,
I also have a 2007 DTS with exactly the same problem as Beardare2002. I'd appreciate you passing any info on to me as well.
Thanks very much, Al

----------

My VIN is 1G6KD57Y27U124430 :)


Beardare2002,
If you would send me your name and VIN number I will look into this for you.
Breanne
Cadillac Customer Service

Sharc99
01-31-12, 01:30 PM
I had a 2001 STS and the heated seats did not work! It was still under warranty. Both seats bucket at a cost of just under 1000.00 both heater circuits were open. I did upgrade to a 2009 DTS love this car has a lot of toys my other did not have. Seats work great and I did get the extended warranty to late 2014 just for electrical issues like this.

BlackRavenDTS
02-02-12, 08:08 AM
My heated seats Broke a year ago.... I will be getting this fixed during the month of Feb I hope.

Cadillac Cust Svc
02-02-12, 01:42 PM
Let me know if you want me to assist you in making an appointment whenever you are ready.
Breanne
Cadillac Customer Service

AEC2007
02-03-12, 10:20 AM
HI Breanne,
did you find any information on this problem? I live in Ontario but my Dealer is Rinke Cadillac in Warren MI, wher eI bought the car.
Thanks Al

Cadillac Cust Svc
02-03-12, 12:18 PM
AEC2007,
You will have to have the vehicle properly diagnosed by your local dealer. If your vehicle is still covered under bumper to bumper then most likely the repairs can be covered under that. Let me know if you want me to make an appointment at your dealer for you.
Breanne
Cadillac Customer Service

Beardare2002
02-09-12, 12:43 AM
Hi, Breanne

I'm sorry that I didn't answer you earlier. I didn't know how to get back to my post. Thanks sooo much for replying. My vin number is 1G6KD57YX7U154324 and it was put into service August 22, 2007. As of today it has 79657 Klm's. It's a Canadian vehicle and has been in the family since new. My name is Mark E. Taylor. The car still looks like it was just pulled off the showroom floor. I get complements everywhere I drive it. While it was still under warranty I had the front drivers seat fixed as it would not move up or down. I don't know if this had anything to do with the heated/cooled seats not working. You can also contact me at Taylortalk@rogers.com if you need anymore information. Thanks again.

Beardare2002
02-12-12, 06:10 PM
Breanne are you there? I responded 5 days ago?

This Cadillac was $64,900 when purchased new in 2007. I just love the quality and outstanding customer service! (It's hard to type "sarcasm", please insert it here)





Hi, Breanne

I'm sorry that I didn't answer you earlier. I didn't know how to get back to my post. Thanks sooo much for replying. My vin number is 1G6KD57YX7U154324 and it was put into service August 22, 2007. As of today it has 79657 Klm's. It's a Canadian vehicle and has been in the family since new. My name is Mark E. Taylor. The car still looks like it was just pulled off the showroom floor. I get complements everywhere I drive it. While it was still under warranty I had the front drivers seat fixed as it would not move up or down. I don't know if this had anything to do with the heated/cooled seats not working. You can also contact me at Taylortalk@rogers.com if you need anymore information. Thanks again.

Cadillac Cust Svc
02-13-12, 03:33 PM
Breanne are you there? I responded 5 days ago?

This Cadillac was $64,900 when purchased new in 2007. I just love the quality and outstanding customer service! (It's hard to type "sarcasm", please insert it here)

I was looking into this for you, but unfortunately since the vehicle is a Canadian vehicle, there is nothing that I can do. You can contact Cadillac in Canada, the phone number is 1-800-263-3777. Sorry for the inconvenience.
Breanne
Cadillac Customer Service

Phatalac
02-19-12, 01:49 PM
I just won a battle with my dealership over my heated butt portion of the seat i was sent away many times saying that it check's out fine well the last time i flipped out and said im not taking the car back until some thing gets fixed it not right it does not do any thing, and i was told over and over again its because the car use's the blower style heated seat VS the grid style and that it is normal. They had the head mechanic drive the car and he came back and said yes it does not work as it should. They are going to be replacing it next week, i am also having a new seat cushion installed in my seat because its half flat on the out side the old owner must have been bigger.

ltdltc
02-20-12, 03:16 PM
I just won a battle with my dealership over my heated butt portion of the seat i was sent away many times saying that it check's out fine well the last time i flipped out and said im not taking the car back until some thing gets fixed it not right it does not do any thing, and i was told over and over again its because the car use's the blower style heated seat VS the grid style and that it is normal. They had the head mechanic drive the car and he came back and said yes it does not work as it should. They are going to be replacing it next week, i am also having a new seat cushion installed in my seat because its half flat on the out side the old owner must have been bigger.

Don't worry when they fix it, it'll still be inferior to the heated electric element. I've had 2 DTS so far and both needed to have drivers seat modules replaced. The blower functioned heated seats are just not very good.

Phatalac
02-20-12, 03:29 PM
they might be inferior but my passenger seat gets hotter than hell its just the drivers seat that sucks, can some one explain to me how the blower style heated seat works?

ltdltc
02-20-12, 03:43 PM
can some one explain to me how the blower style heated seat works?


Heated/Cooled Seats Description and Operation
The driver and front passenger systems each consist of the following components:
• Heated/cool seat switch
• Seat cushion heated/cool ventilation module
• Seat back heated/cool ventilation module
• Driver door module (DDM)
• Passenger door module (PDM)
• Climate control seat module (CCSM)
• HTD/COOL fuse 30-amp
• HTD/COOL/IGN3 fuse 20-amp
Air Circulation
When the heated/cool seat switch is pressed to initiate operation of the climate control seat (CCS) system, cabin air is drawn through the heated/cool ventilation module air filter, then directed through passages in the foam of the seat cushion and seat back to the seat's occupant. In order for the CCS system to operate to its optimum performance, it is crucial to have unrestricted air flow through the system. A dirty or restricted air filter, the blockage of an exhaust air duct, a misaligned heated/cool ventilation module, or incorrect foam installation of the seat cushion or seat back will all have negative effects on CCS operation.

Heated/Cool Ventilation Module
Each heated/cool seat has 2 ventilation modules, one located under the seat cushion and one located in the seat back. These modules are controlled by the climate control seat module (CCSM). Each ventilation module contains a thermo-electric device (TED), a temperature sensor, and a blower motor. The TED and temperature sensor are mounted downstream of the blower motor. Each TED consists of a circuit of positive and negative connections sandwiched between 2 ceramic plates. Each ceramic plate is equipped with copper fins for heat exchange. The air flowing past these fins is either directed as conditioned air into the seat cushion and seat back, or directed into the cabin as waste air.

A TED is essentially a solid state heat pump that is used to heat or cool the air supply to the seat cushion and seat back. When voltage is applied to a TED, one side releases energy as heat, while the opposite side absorbs energy and gets cold. When the polarity of the current flow to the TEDs is switched, the hot and cool sides of the TED reverse.


Climate Control Seat (CCS) System
The CCS system consists of two heated/cool ventilation modules and one climate control seat module (CCSM) that controls both the driver and passenger heated/cool seats systems. The CCSM is mounted below the front passenger seat cushion. It receives power from both, battery positive voltage and ignition 3 voltage.

Once a CCS system is activated, cabin air is drawn through the seat blower motors and directed across the fins of each of the thermo-electric device (TED) located under the seat cushion and in the seat back. The air is either heated or cooled as it passes over the TEDs. This conditioned air is then directed through channels in the foam of the seat pad and through small holes in the seat cover to the occupant. Once the system is activated, the CCSM uses a set of algorithms to control the temperature of the selected heating or cooling modes.

Modes of Operation
There are 3 modes available for climate control seat (CCS) system operation, heated seat, cool seat, and back only heat operation. When a heat or cool seat mode signal request is received, the climate control seat module (CCSM) will activate both the seat cushion and seat back ventilation modules. When the seat BACK ONLY mode button is pressed once, the CCSM will deactivate the seat cushion ventilation module and leave the seat back ventilation module ON. Press the BACK ONLY mode button a second time and the CCSM will re-activate the seat cushion ventilation module.

Heated/Cooled Seat Switch and Door Module
The driver and front passenger seats are controlled by a separate heated/cool seat switch. Ground is supplied to the heated/cool seat switch through the low reference circuit and the respective door module. The door module plays an important part of the climate control seat (CCS) operation, first by relaying the selected switch inputs to the CCSM, and second, by controlling the mode and temperature indicators of the heated/cool seat switch.

The following describes the sequence of operation of the heated/cool seat switch, and how the door module responds to each of the switch inputs.

• High Temperature--When either the heat or cool seat switch is pressed once, ground is applied through the switch contacts and the switch signal circuit to the door module. In response to this signal, the door module then sends a message via GMLAN serial data to the memory seat module (MSM). In response to this message, the MSM then sends a pulse width modulation (PWM) signal through the heated/cool seat mode signal circuit to the CCSM indicating the switch input. The door module then applies a ground through the appropriate heat or cool seat indicator control circuit to the switch, illuminating the selected heat or cool mode indicator. At the same time, the module also applies a ground through the high, medium, and low temperature indicator control circuits of the switch illuminating all 3 temperature indicators, indicating the high temperature mode.

• Medium Temperature--When the switch is pressed a second time, the door module signals the MSM, the MSM then relays the message to the CCSM of the medium temperature request. The door module then removes the ground from the high temperature indicator, leaving the medium and low temperature indicators illuminated, indicating the medium temperature mode.

• Low Temperature--When the switch is pressed a third time, the door module signals the MSM, the MSM then relays the message to the CCSM of the low temperature request. The door module then removes the ground from the medium temperature indicator, leaving the low temperature indicator illuminated, indicating the low temperature mode.

• System Off State--After the switch is pressed a fourth time, the door module signals the MSM, the MSM then relays the message to the CCSM of the system OFF request. The door module then removes the grounds from indicator control circuits turning OFF the appropriate heat or cool mode indicator and the low temperature indicator.

• Seat Back Only Heat Mode--The back only mode will operate only in the heat mode in any one of the above mentioned temperature settings. When the back only switch is pressed once, the door module signals the MSM, the MSM then relays the message to the CCSM of the back only mode request. The door module then supplies a ground through the seat back only mode indicator control circuit to the switch, illuminating the BACK ONLY mode indicator.

Temperature Sensors
As mentioned above in the heated/cool ventilation module description, the seat cushion and seat back temperature sensors are each packaged with a thermo-electric device (TED) and blower motor as an assembly. The seat temperature sensors are thermistors which are attached directly to the fins of each TED. The climate control seat module (CCSM) supplies a 5-volt reference voltage through the temperature sensor signal circuit and ground through the temperature sensor low reference circuit to the respective seat cushion and seat back temperature sensors.
Blower Motors
Also, as mentioned above in the heated/cool ventilation module description, the seat cushion and seat back blower motors are each packaged with a thermo-electric device (TED) and temperature sensor as an assembly. Each blower motor contains logic that will allow for the blower to operate only when the ignition is in the ON position. When the ignition is ON and the climate control seat module (CCSM) is powered up, the module supplies battery positive voltage through the blower supply voltage circuit to the logic of the blower motors. When the heated/cool seat switch is pressed, the CCSM applies a pre-determined voltage through the blower speed control circuits to the blower motors. The module also supplies each blower motor with a ground path through the blower low reference circuits.


Heated Seat Operation
When the heated seat switch is pressed for High Heat, the climate control seat module (CCSM) will transition to the HEAT state. In the heat state, the CCSM applies a pre-determined voltage through the ventilation module heat control circuits to the heat side of the thermo-electric devices (TEDs), while providing a ground through the ventilation module cool control circuit to the cool side of the TEDs. A pre-determined voltage is also applied to the blower motors. The CCSM uses the following sequence beginning with the Heat SoftStart Mode to achieve the set point temperature before it can enter the Control Heat Mode. If the seat temperature is already above the Temperature Set Point, the CCSM will skip the Heat SoftStart Mode and proceed to the Control Heat Mode.

• Heat SoftStart Mode--While in transition to the heat mode, the CCSM will initiate the SoftStart Mode. The intent of the Heat SoftStart Mode is for the module to bring the ventilation module fin temperature up to the pre-determined Temperature Set Point of the Max Heat Mode. The module does this by setting the blower motor speed control to a pre-determined voltage while ramping up the ventilation module voltage from 0 volts to the maximum voltage, not to exceed 5 seconds, at which point the system transitions to Max Heat Mode. The Heat SoftStart Mode will only be attempted once per ignition cycle.
• Max Heat Mode-Upon completion of the Heat SoftStart Mode, the CCSM will initiate Max Heat Mode. The intent of the MAX Heat Mode is to maintain the fin temperature to the pre-determined Temperature Set Point in order for the CCSM to go into the Control Heat Mode. The CCSM does this by maintaining the TED at the maximum voltage while maintaining the minimum required airflow across the fins. After max heat duration has been reached, or upon achieving the pre-determined Temperature Set Point, the system transitions to the Control Heat Mode.
• Control Heat Mode-At the completion of Max Heat Mode, the CCSM will initiate Control Heat Mode. The intent of the Control Heat Mode is to maintain the desired fin temperature or the set point temperature. The CCSM does this in two ways; first by adjusting the voltage supply to the blower motor to control blower motor speed, then secondly by controlling the voltage supplied to the TED. The CCSM updates these voltages once every second. Increasing the blower motor speed will decrease the fin temperature. If the maximum blower motor speed is achieved and the fin temperature is still above the set point of high heat, the CCSM will then begin to control the TED voltage to achieve Temperature Set Point. Decreasing the TED voltage decreases the fin temperature. If the CCSM is trying to raise the fin temperature to set point by using TED voltage, and the fin temperature cannot be raised because the TED voltage is at the maximum, the CCSM reduces the blower motor speed to achieve the Temperature Set Point.

Cooled Seat Operation
When the cool seat switch is pressed for High Cool, the climate control seat module (CCSM) will transition to the COOL state. In response to this command, the CCSM applies a pre-determined voltage through the ventilation module cool control circuits to the cool side of the thermo-electric devices (TEDs) while providing a ground through the ventilation module heat control circuits to the heat side of the TEDs. A pre-determined voltage is also applied to the blower motors. The CCSM uses the following sequence, beginning with the Cool SoftStart Mode, to achieve the set point temperature before it can enter the Open Loop Cool Mode.

• Cool SoftStart Mode--The intent of the Cool SoftStart Mode is for the CCSM to bring the TED fin temperature to maximum cool temperate. The CCSM does this by setting the blower motor speed control voltage to 0 volts, while ramping up the TED voltage duty cycle from 0 volts to maximum voltage duty cycle over a period not to exceed 5 seconds. Then, with the TEDs at maximum voltage, the CCSM will increase the blower speed to maximum voltage, and keep these settings for the MAX COOL DURATION. After which the system transitions to the Open Loop Cool Mode.

• Open Loop Cool Mode--At the completion of Cool SoftStart Mode, the CCSM will initiate Open Loop Cool Mode. The intent of this mode is to maintain the set point fin temperature based on the input of the cool seat switch. First, by controlling the speed of the blower motor, then secondly, by controlling TED voltage. The CCSM updates these voltages once every second.

Fault State
The climate control seat system will operate normally in the battery voltage range of 9-16 volts. If the system voltage falls outside of this voltage range, the module will shut down all outputs until the system returns to its normal operating voltage range.

High Temperature Fault State
During the heating or cooling modes, if the TED temperatures listed below are exceeded for more than 4 seconds, the system will enter the High Temperature Fault State. At which time the CCSM will set the TED voltage duty cycle to 0%, set the blower speed control to maximum voltage to blow ambient air over the TEDs, attempting to reduce the TED temperature below the listed maximums. The system will operate in this mode for 30 seconds. If the over temperature fault still exists after 30 seconds, the system will transition to the FAULT state for the remainder of the ignition cycle. If the over temperature fault clears, the system will then transition to the appropriate heat or cool softstart mode. The following temperatures are based upon individual readings of either sensor:

• Heat mode TED temperature exceeds 230F (110C).

• Cool mode TED temperature exceeds 149F (65C).

Temperature Delta Fault
During the heating or cooling modes, if the climate control seat module (CCSM) detects a temperature difference between the seat cushion and seat back TED temperature sensors exceeding the delta temperature listed below for more than 4 seconds, the system will enter the Temperature Delta Fault state. At which time the CCSM will set the TED voltage duty cycle to 0%, set the blower speed control to maximum voltage to blow ambient air over the TEDs, attempting to reduce the delta temperature to less than 68F. The system will operate in this mode for 30 seconds. If the delta temperature fault still exists after 30 seconds, the system will transition to the FAULT state and remain there until the ignition has been set to OFF.

• Delta between the seat cushion and seat back temperature sensors is 104F (40C).

• This fault state is disabled in the back only mode.



....

Phatalac
02-20-12, 04:47 PM
holy hell thanks for that! do you have some sort of computerized FSM?

creepingdeath
02-22-12, 11:29 PM
I had my drivers seat repaired to the tune of $1000. heated/cooling module was bad. I hit the switch to turn on the heat or cool. I could hear a relay kick in and then 10 sec. later heard another relay click. Nothing got hot or cold. Passenger seat worked fine tho. A lot of money to repair, but I own a Cadillac, and if these comforts don't work then I might as well be driving a Chevy.

Trixie
04-29-12, 05:09 AM
Yeah my seats just went on me too the lights light up on all levels but nothing happens, checked the fuses, those are good. Sounds like the module. :-(

AEC2007
04-30-12, 11:54 AM
A number of Members obviously had heated and cooled seat issues in the past several months. I'd love to hear from those who had the problem fixed. Specifically what was wrong, parts replaced, part numbers and the cost of the repair. I think this specific information can be valualbe for those who develope similar problems and for those who approach there service department (knowledge is power). Thanks

TerrBear
04-30-12, 03:06 PM
A number of Members obviously had heated and cooled seat issues in the past several months. I'd love to hear from those who had the problem fixed. Specifically what was wrong, parts replaced, part numbers and the cost of the repair. I think this specific information can be valualbe for those who develope similar problems and for those who approach there service department (knowledge is power). Thanks

I agree. My car is still under warranty, and I asked the dealer to check the cooling of the seats as the bottom portion did not seem to cool very well. I was told that the seat was operating within normal ranges and was functioning as designed. I remember one post here where the gentleman stated he could store meat on his seats because they get so cold. Living in Florida with the summer approaching, that would be nice.

Phatalac
04-30-12, 07:27 PM
i have already posted this but, if they say its all working fine then its your seat cushion there is a pipe that travels from the fan under the seat to channels into the seat, im willing to bet that its collapsed and blocking the cooled or heated air from the fan.

danog
05-01-12, 02:22 AM
The heat and cool seat functions for the driver and passenger seats are controlled by the climate control seat module (CCSM) that is located under the passenger seat cushion. When a driver or passenger heat or cool seat switch is pressed, a low reference signal is applied through the switch signal circuit to the door control module. In response to the switch input, the door module illuminates the heated/cooled switch indicators and sends a serial data message to the memory seat module (MSM) indicating the heat/cool seat request. The MSM then sends a pulse width modulation (PWM) signal through the heated/cooled seat mode signal circuit to the CCSM. The CCSM then applies battery positive voltage to the seat cushion and seat back thermal electronic devices (TEDs) and a pre-determined voltage to the blower motors. To determine seat temperature, the CCSM supplies a 5 V signal and a low reference to the temperature sensors that are attached to each TED. The temperature sensors are variable resistors, their resistance changes as the temperature of the seat changes. Then based on the seat temperature, the CCSM controls the voltage level that it applies to the TEDs and blower motors.

Most of the time its a burnt wire at the connector of the ccsm under the passenger seat. They sell a repair harness for it

AEC2007
05-08-12, 10:47 AM
[A number of Members obviously had heated and cooled seat issues in the past several months. I'd love to hear from those who had the problem fixed. Specifically what was wrong, parts replaced, part numbers and the cost of the repair. I think this specific information can be valualbe for those who develope similar problems and for those who approach there service department (knowledge is power). Thanks

TerrBear
05-08-12, 09:01 PM
Is there a website that has a parts diagrams for these cars?

danog
05-09-12, 01:37 AM
9145591454
[A number of Members obviously had heated and cooled seat issues in the past several months. I'd love to hear from those who had the problem fixed. Specifically what was wrong, parts replaced, part numbers and the cost of the repair. I think this specific information can be valualbe for those who develope similar problems and for those who approach there service department (knowledge is power). Thanks

#PIC4825: Heated / Cooled Seat Inoperative - keywords climate control cool cooled driver front heat heated inoperative intermittent left module passenger right - (Mar 18, 2008) Subject: Heated/ Cooled Seat Inoperative

Models: 2006- 2008 Buick Lucerne w/ RPO KB6


2006- 2008 Cadillac DTS w/ RPO KB6
--------------------------------------------------------------------------------

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:


A customer may comment the heated / cooled seat feature is inop for either the driver or passenger front seat. The cause may be a poor connection of the climate control seat module (CCSM) C1 pin E circuit 1440 (2006- 2007 model years) or X1 pin E circuit 1440 (2008 model year).

Recommendation/Instructions:


Closely inspect CCSM C1 pin E or X1 pin E for proper pin fit. Also check for any distortion of the connector housing or CCSM that could cause a poor connection. If any distortion is found replace the CCSM and connector.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed

trispeed
05-10-12, 02:27 AM
A customer may comment the heated / cooled seat feature is inop for either the driver or passenger front seat. The cause may be a poor connection of the climate control seat module (CCSM) C1 pin E circuit 1440 (2006- 2007 model years) or X1 pin E circuit 1440 (2008 model year).

Recommendation/Instructions:


Closely inspect CCSM C1 pin E or X1 pin E for proper pin fit. Also check for any distortion of the connector housing or CCSM that could cause a poor connection. If any distortion is found replace the CCSM and connector.

I had intermittent heat/ cool operation. Checked the connector noted above; there was slight discoloration from heat at one of the wires (yellow, iirc) wiggled around, didn't help/ stuffed a folded over staple into the female end of the connector to increase the area of contact and it all works properly! Just jacked up the seat all the way on front to gain access to the module connectors.