Question about Chevrolet Suburban 1500

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Seat heater turns on + off by itself, speedodmer stops working then starts back up

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Sounds like you may have an electrical issue possibly. Have you checked your fuse for the seats? Your needle may be getting stuck or you could have a loose wire in the dash also.

Posted on Mar 14, 2011

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Posted on Jan 02, 2017

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Seat heater comes on by itself in 2004 yukon denali


Heated Seat Components
The heated seat system consists of the following components:
• Driver and passenger heated seat switches
• Driver and passenger seat back heater elements
• Driver and passenger seat cushion heater elements
• Driver and passenger seat back temperature sensors
• Driver seat module
• Driver door module
• Passenger door module
When there are modules involved in the operation of any componet that's acting up , the module's electronic's could be the culprit ! But without testing who's to say what the problem could be !
I would have it check for DTC'S
DTC B2425 or B2430
The driver and passenger seat heaters are controlled by the driver seat module. Power is supplied to the driver seat cushion and back heater elements through individual voltage supply circuits. Power is supplied to the passenger seat cushion and back heater elements through a common voltage supply circuit. All of the driver and passenger seat heater elements are grounded by the driver seat module through individual low side drive control circuits. The heater element control circuits are pulse width modulated to ground by the driver seat module in order to control the seat temperatures by regulating the current flow through the heater elements.
DTC B2435 or B2440
The driver seat module relies on inputs from thermistors installed in the driver and passenger seat backs to control heated seat temperatures. The thermistors are 2-wire sensors supplied with a 5-volt referenced signal circuit and low reference circuit from the driver seat module. Resistance through the thermistors varies with temperature causing the heated seat sensor signal circuit voltage levels to decrease as the seat back temperatures rise.
Install a scan tool.
Start the engine.
Turn the heated seat ON.
With a scan tool, observe the Heated Seat Sensor parameter in the data list for the driver seat module.
Does the scan tool indicate that the heated seat sensor parameter is within the specified range?
0.078-4.94 V

Dec 08, 2016 | GMC Yukon Denali Cars & Trucks

1 Answer

2010 Lincoln MKS Heated Seat on driver's side stopped working (Light in button turns off on its' own)


The most common cause of this problem is that the drivers seat heater grid is open or burned out. That is based on 25 years as a Ford dealer technician.

Feb 27, 2017 | Lincoln Cars & Trucks

1 Answer

Seat heater stopped working - is it a fuse?


Do both your front seats have heaters ? Do both not work , or just one ? Do the heated seats have heat elements in backs as well as the seat ? The heater grid in the seat go bad !

Mar 30, 2015 | 2008 Lincoln Mkz

1 Answer

Seat heater


some seat heaters have thermostats-could be a bad thermostat and finally it burned out. also check your fuses first

Dec 05, 2013 | 2004 Lincoln Town Car

1 Answer

2004 GMC Sierra drivers side seat heater turnes on and off by itself


The seats are powered by a 30amp breaker which includes the circuits for the power motors.
The signal from the control switch goes to a door module then to a memory seat module, then to the heater elements.
It may be easier to disconnect the heating element for now, repairs will need a shop manual to test and trace the circuits.

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1 Answer

Seat heater goes on by itself


You pretty much guaranteed have a bad switch for the heater, I'm afraid. If you don't want to buy an official replacement, a simple SPST or DPST toggle switch from Radio Shack would work.

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1 Answer

My power seat stopped working in my 2003 Yukon XL. The heated seats stopped working as well.


Try this remove the ckt breaker for the power seats the ckt breaker is located in the fuse box inside down by the drivers left foot. leave breaker out for about 10 seconds then reinstall it and see if the seat starts moving. If it does there is a reprogram for this and needs to be done by a dealer or someone who has access to be able to reprogram your vech.
several things could cause your heated seats to not work. If the seat and heated seat seat stopped at the same time could be the reprogram could fix it. If the heated seat quit working at a differant time it could be the seat heater element. get a schematic of the heated seat and ohm the wires for the element. If either element tests open then the element will need to be replaced. You might as well replace both of them at the same time since the seat covers have to come off to replace the seat heaters.(back and bottom ) If one element is bad then both heaters quit working.

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1 Answer

Seat heater does not work


you need to see if the seat is getting power to it at the connector plug if not trace back to see if switch is,if it is getting power you need to lookfurther at the seat itself,even check fuses but they are both probally on the same one

Oct 28, 2009 | 2000 Volkswagen Beetle

1 Answer

2005 gmc sierra 2500hd heated seat turns off


you have a couple of problems first of all your drivers sd=ide heated heat pad is probably faulty, for your heating problem you may have to get the hvac doors recalibrated.

Oct 05, 2009 | 2004 GMC Sierra 2500

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