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Fuse that controls heated seats - 2005 Mercury Mountaineer

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Trying to find which fuse is for the heated seats on a 2004 ford explorer sports trak


Heated Seats
This system allows the electrical heating of the front seats on passenger demand.
The components of the system are:
  • the seat heating elements located in the seat cushion and backrest.
  • the heated seat control switch, located on the seat side trim panel.
  • temperature sensors located in the seat cushion heating elements.
  • heated seat relay.
Do both front seat heaters not work ? Do you know how to test electrical circuits with voltmeter ?
PINPOINT TEST J: THE HEATED SEAT IS INOPERATIVE Test Step Result / Action to Take J1 CHECK HEATED SEAT SWITCH OPERATION
  • Key in ON position.
  • Press the heated seat switch on the driver and passenger seats.
  • Are both heated seat switch indicators illuminated?
Yes
If both indicators illuminate, Go To Pinpoint Test K . If only one indicator illuminates, GO to J5 .

No
GO to J2 . J2 CHECK THE HEATED SEAT RELAY CIRCUITS
  • Key in OFF position.
  • Disconnect: Heated Seat Relay C3250 (located under the driver seat).
  • Key in ON position.
  • Measure the voltage at heated seat relay C3250-86, circuit 1003 (GY/YE), harness side and ground; and between C3250-30, circuit 566 (DG), harness and ground.
    s5r~tr~en~file=a0078817.gif~gen~ref.gif
  • Are the voltages greater than 10 volts?
Yes
GO to J3 .

No
REPAIR inoperative 1003 (GY/YE) or 566 (DG) circuit. TEST the system for normal operation. J3 CHECK HEATED SEAT RELAY GROUND CIRCUIT
  • Key in OFF position.
  • Measure the resistance between heated seat relay C3250-85, circuit 57 (BK), harness side and ground.
    s5r~tr~en~file=a0078818.gif~gen~ref.gif
  • Is the resistance less than 5 ohms?
Yes
GO to J4 .

No
REPAIR circuit 57 (BK). TEST the system for normal operation. J4 CHECK THE HEATED SEAT RELAY
  • Install a fused jumper lead between heated seat relay 3250-30, circuit 566 (DG), harness side and heated seat relay C3250-87, circuit 1064 (YE/LB), harness side.
    s5r~tr~en~file=a0078819.gif~gen~ref.gif
  • Do both heated seat indicators illuminate when pressed?
Yes
INSTALL a new heated seat relay. TEST the system for normal operation.

No
REPAIR circuit 1064 (YE/LB) to switches. TEST the system for normal operation. J5 CHECK INOPERATIVE HEATED SEAT SWITCH INPUT
  • Key in OFF position.
  • Disconnect: Heated Seat Switch C320 (Driver) or C321 (Passenger) for the inoperative heated seat.
  • Key in ON position.
  • Measure the voltage between heated seat switch C320-2 (driver) or C321-2 (passenger), circuit 1064 (YE/LB), harness side and ground .
    s5r~tr~en~file=a0078820.gif~gen~ref.gif
  • Is the voltage greater than 10 volts?
Yes
GO to J6 .

No
REPAIR circuit 1064 (YE/LB). TEST system for normal operation. J6 CHECK CIRCUIT 57 (BK) FOR AN OPEN
  • Measure the resistance between heated seat switch C320-4 (driver) or C321-4 (passenger), circuit 57 (BK), harness side and ground.
    s5r~tr~en~file=a0078821.gif~gen~ref.gif
  • Is the resistance less than 5 ohms?
Yes
INSTALL a new heated seat switch. TEST the system for normal operation.

No
REPAIR circuit 57 (BK). TEST the system for normal operation It's not that simple , being a fuse . It's probably the relay or the heating element .
PINPOINT TEST K: SEAT DOES NOT HEAT BUT THE HEATED SEAT INDICATOR ILLUMINATES WHEN PRESSED ? Does it ?
Your best bet would be to take to a qualified repair shop .
Do

Jun 29, 2016 | 2004 Ford Explorer Sport Trac

1 Answer

Heated seats


if they were installed correctly the fuse should be in the fuse box (usually driver side under dash) marked seat heater or in an acc slot. also try looking under the seats to see if they are plugged in correctly.

Oct 24, 2013 | Oldsmobile Cars & Trucks

1 Answer

2009 Lincoln MKS heated seats do not work


there is a heat /cool control module under the drivers seat.

Jan 25, 2013 | 2009 Lincoln MKS

1 Answer

Both heated seats and mirrors don't work


Not exactly.
According to the wiring diagrams, the heated seats are controlled by several fuses and two modules, plus two relays, along with input from the HVAC module. There is a module and a relay for each seat heater.
The mirrors are controlled by several other fuses and modules.
You may need a shop manual to trace the circuits.
All of the fuses involved are in the box in the engine compartment.

Sep 19, 2012 | 2005 Ford F 350 Super Duty

2 Answers

Gmc 2005 truck seat heat control not working


Check the fuse , the seat heater is on a seperate fuse due to the amount of amps they draw.

Please take a moment and rate my answer.........thanks

Nov 30, 2010 | GMC Sierra 1500HD Cars & Trucks

1 Answer

What does the ign 3 fuse on a 2004 tahoe control


this fuse controls a few things i will list them and send a copy for you.this way you can determine which asc come on this truck, but i know some do and they are needed,it controls the hvac system (heating/ ac), electronic suspension, rear wheel steering,and heated seats. instead of removing the fuse which cant be done look under the rear seats and unplug the heated seats module theres two one under each seat in the rear seats that will shut it down. hope this helps

Feb 24, 2010 | Chevrolet Tahoe Cars & Trucks

1 Answer

Power seats heated seats my both my seats stop moving and the heated seats stop working do to a fuse going bad. i dont have a owners manu; so i dont no what fuse to change


heated seats are controlled by a relay only and the power seats are hooked to a relay and a circuit breaker. The breaker is attached inside the fuse block as well with a metal top stamped 20 or 30 amp

Jan 17, 2010 | 2003 Chevrolet Tahoe

2 Answers

The driver seat heater just quit. all fuses are good. how do you tell if the relay is good?


Swap it with a relay you know to be good and see if it works again,pick a relay that is not important to the function of your car.

Nov 01, 2009 | 2004 Cadillac SRX

1 Answer

Fuse location


There is not a fuse listed for heated seats but fuse 16 is for heated mirrors and fuse 11 is power seats. i'm guessing one of those should also control the heated seats.

May 01, 2009 | 2002 Buick Rendezvous

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