Question about 2006 Buick Lucerne

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Heated seats not working .Light is working and fuse has not blown

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If the light and the fuse are good then you probably have a open in one of the heated elements.You need to ohm the upper then the lower heater elements to see which one is bad.The connectors are under the seat.

Posted on Nov 20, 2009

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Have a 2006 buick lucerne, all lights for heated and cooling seats work, fuses ar both good, neather seat work at all, Is there a hidden fuse like the chev impalla has? or ?

Posted on Mar 11, 2011

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Posted on Jan 02, 2017

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SOURCE: 2002 Grand Cherokee Heated Seats don't work

I will post it in 2 different posts because its too long DB

HEATED SEAT SYSTEM
Individually controlled driver and passenger side electrically heated front seats are available factoryinstalled optional equipment on this model, when it is also equipped with the power seat option. The heated seat system allows both the driver and the front seat passenger the option to select one of two seat heating ranges, Low or High, or to turn the individual seat heaters OFF using the heated seat switches located in the center lower bezel near the bottom of the instrument panel center stack. The heated seat switch circuit operates on ignition switched battery current supplied through a fuse in the junction block, only when the ignition switch is in the ON position.

The heated seat system consists of the following components

  • Heated seat elements
  • Heated seat sensors
  • Heated seat module (or memory heated seat module)
  • Heated seat switches.
The heated seat system also relies upon resources shared with other electronic modules in the vehicle over the Programmable Communications Interface (PCI) data bus network. The PCI data bus network allows the sharing of sensor information. This helps to reduce wire harness complexity, internal controller hardware, and component sensor current loads. At the same time, this system provides increased reliability enhanced diagnostics, and allows the addition of many new feature capabilities. For diagnosis of these electronic modules or of the PCI data bus network, the use of a DRB scan tool and the proper Diagnostic Procedures are recommended.

The electronic modules that may affect heated seat system operation are as follows:
  • Body Control Module (BCM) - Refer to Body Control Module in Electronic Control Modules for more information.
  • Heated Seat Module (HSM) - Refer to Heated Seat Module in Electronic Control Modules for more information.
  • Memory Heated Seat Module (MHSM) - If the vehicle is equipped with the Memory System, refer to Memory Seat Module in Electronic Control Modules for more information.
Refer to Power Seats Premium I/III in the Contents of Wiring Diagrams for complete circuit diagrams. Following are general descriptions of the major components in the heated seat system.

The heated seat system will only operate when the ignition switch is in the ON position, and the surface temperature at the front seat heating element sensors is below the designed temperature set points of the system. The heated seat system will not operate in ambient temperatures greater than about 41 °C (105 °F) . The front seat heating elements and sensors are hard wired to the Heated Seat Module (HSM) or the Memory Heated Seat Module (MHSM).

The heated seat switches are hard wired to the Body Control Module (BCM). The BCM monitors the heated seat switch inputs, then sends heated seat switch status messages to the HSM or MHSM over the Programmable Communications Interface (PCI) data bus. The HSM or MHSM contains the control logic for the heated seat system. The HSM or MHSM responds to the heated seat switch status messages, ignition switch status messages, and the front seat heating element sensor inputs by controlling the output to the front seat heating elements through integral solid-state relays.

When a seat heater is turned ON, the sensor located on the seat cushion electric heater element provides the HSM or MHSM with an input indicating the surface temperature of the seat cushion. If the surface temperature input is below the temperature set point for the selected Low or High heated seat switch position, the HSM or MHSM energizes the integral solid-state relay, which supplies battery current to the heating elements in the seat cushion and back. When the sensor input indicates the correct temperature set point has been achieved, the HSM or MHSM de-energizes the solid-state relay. The HSM or MHSM will continue to cycle the solid-state relay as needed to maintain the temperature set point.

The HSM or MHSM and the seat heater elements operate on non-switched battery current supplied through the power seat circuit breaker in the junction block. However, the HSM or MHSM will automatically turn OFF the heating elements if it detects an open or short in the sensor circuit, a short or open in the heating element circuit causing an excessive current draw, or when the ignition switch is turned to the OFF position.

See the owner's manual in the vehicle glove box for more information on the features, use and operation of the heated seat system.

I WILL POST THE REST

Posted on Feb 03, 2009

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SOURCE: heated and cooled seats quit working. won't work on either driver's or passanger's seats. checked the fuses and relays and they are all ok. what's wrong?

Remove fuses 10 and 11 in the underhood junction box. Leave out for 5 minutes then reinstall. If the seats start working your Zephyrs dual climate control seat module will need replaced.

Posted on Jul 03, 2009

  • 5 Answers

SOURCE: both front heated seats not working

Could be a broken wire on the bottom of the seats, the wires become hard over the years and the movement of the seat moving back and forth can cause the breakage.
It could also be the thermostats that are fitted into the base of the seats.

Posted on Jun 10, 2008

  • 1 Answer

SOURCE: rear window defroster, no driver heated seat

check the ground on the passenger side of the rear window under the trim panel. That is what was wrong with mine.

Posted on Jan 27, 2009

  • 7 Answers

SOURCE: 2003 buick lesabre heated seats wont work

I had this problem, but only on the driver's side (with leather seats). Sometimes the switch would come on, but I could not get it to go back off (and the seat would not heat).

I ended up removing the drivers front seat cover (only the bottom part), folding it back from the driver's door to the middle of the car. You also have to unplug the wiring harness underneath the seat. I found a black spot burned in the foam. This is where a wire had broken. I carefully pulled the wire together, then soldered it. I put everything back together, and it has been working ever since (about 6 months - and getting lots of use in the middle of the winter).

I think the only way to replace the heated seat wires is to replace the whole seat cover. I was glad I could fix mine by soldering it.

Posted on Feb 22, 2009

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I have a 2004 Toyota Camry XLE and the heated seat on the driver side stopped working. I had the fuse labeled for the heated seat (which I believe was 20a) and it was blown. The buttons for the heated...


Replace the fuse with one the same rating. If the seat now works.... smile. If the new fuse blows or the heat does not work you may have a short (or a broken wire) inside the seat that's causing the problem. It's an 11 year old seat.... tearing it apart to find the source may not be worth it.

Jan 08, 2015 | 2004 Toyota Camry

1 Answer

Heated seats and cruise don't work


Jeep WJ !
you only have 2 choices
buy the fsm, or find it here. below or use alldata.com , it's all there.
or check all fuses.

each fuse has many loads. so test them all or read the FSM..
all cars. made.
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

lets see what is there. fuse 23 blown kills cruise. and brake lamps dead. or PCM in limphome and that can kill cruise,
is CEL out running? if not , CRUISE can be suspended for GOOD reasons, (safety) and more on newer cars...
-----------------------------------------------------------------------
now seats. not the power seat motors. but heaters.
both sides, dead, bottom and back side?
both sides, have a switch, that the BCM watches.
the BCM controls the seat heat.
above 105F ambient this system shuts down.
in the jeep dealer he connects the DRB and sees whats wrong fast.
if the switch LED are dead key on, the fuse is blown.
are yours? dead? (page 8g-5 , fsm)"heated systems"
if the fuses are good, and the lamp glows, at seat it will take
a dealer DRB tool to find true cause or all day with an ohm meter
per above heated systems pages.

here is how seat heat works, it not like a 1995 car.
the BCM watches that seat switch
it sees (monitors) what you do , then sends (by digital COMMAND via PCI bus to) SM.
power (12vdc) to the heater with the "SEAT MODULE"doing the heavy lifting (drivers)
THE SM drives the seat.
black org. wire to diver back heater. and white to bottom heater
so ill assume the SM lost power, (wild guess)
i can not find the fuse that runs SM module.
but if the LED is out, then the fuse is blown and gee, that is easy to find, just looking.
i dont have a searchable FSM, to scan for SM fuse.

Mar 25, 2014 | 2002 Jeep Grand Cherokee

1 Answer

2010 silverado heated seat lights dont come on


the fuse is blown. check your fuses may say htd-st. they could be inside fuse box or engine compartment fuse box. im sure its a blown fuse. mine blow if i leave seat on to long. I put a bigger (higher amp) in mine no more problem

Mar 11, 2013 | Chevrolet Silverado 2500HD Cars & Trucks

1 Answer

2002 Oldsmobile Bravada power seat and heated seat is not working. (Passenger side)


Either have broken wires leading to the heated seat and the power seat controls, or the heated seat element is burnt out (but not likely).

Check for blown fuses for the system, but if one side or the other is not working, it's more likely a wire broke somewhere, in this case, on the passenger side.

Dec 18, 2010 | 2002 Oldsmobile Bravada

1 Answer

The heated seat on the driver's side of my 2005 Uplander stopped working. It is not the fuse, and the switch shows the one or two lights showing power level. The Passenger heated seat works OK. Any...


If the fuse #13 has not blown, it could be the element has an open. If you have a power meter or 12 volt test light, I would check and see if you have 12 volts to the seat connector. If you do, then the seat element may be damaged.

Hope this helps.

Todd

Dec 02, 2010 | 2005 Chevrolet Uplander

2 Answers

The driver side seat in my 2006 Hummer H2 doesnt work neither does either of the Heated seats. Please help i can hardly see over the wheel when i drive


try sitting on a few phone books lol no sorry but if there not working it would have to be a fuse or breaker or relay check them first before taking it to a shop.

Nov 29, 2010 | 2005 Hummer H2

1 Answer

Where to find the heated seat fuse and or circuit breaker


When you open up your fuse panel the back side of the cover has a list of what each of the fuses do. Sometimes it can be a little vague however , so if that happens its a simple thing to just pull them one by one and visually inspect them to see if they are blown. A blown fuse will have the little wire in the middle broken.

Dec 12, 2008 | 2001 Jeep Grand Cherokee

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