Question about 2004 Nissan Quest

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My heated front seats are not heating. - 2004 Nissan Quest

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  • Nissan Master
  • 726 Answers

If its both seats, than i would check for power and ground, but if one is working and the other is not, than your heating element inside of the seat may be broken.

Posted on Nov 14, 2010

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Posted on Jan 02, 2017

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SOURCE: on my 2003 yukon i have no heated front seat

Look in the fuse box on the driver's side of the vehicle on the outboard side of the dash under the triangular cover which snaps off and on. This panel is not visible when the door is closed. If you have your owner's manual, look on page 5-104. This is where the fuses and relay/circuit breaker descriptions, layout, and specifications begin. This section runs to page 5-111.
You are going to check fuse number IGN3, a red plastic, stab-in miniature 10Amp fuse. It has an "S"-shaped element visible through the side of the fuse body. If the element is broken or burned, replace this fuse. DO NOT use a replacement fuse of ANY other rating; use an identical 10Amp fuse ONLY.
You are also going to look for the "Center Instrument Panel Fuse Block," located under the instrument panel, to the left of the steering column. You are going to check the device labeled "30A CB Seat." This is driver and passenger seat module circuit breaker. This circuit breaker is an automatic resetting device, replacement is necessary only if there is no other problem, and it will not reset.
If only the driver seat is affect, the problem is not the CB Seat; check the wire harness and connector under the seat. There is almost no clearance under the seat, and it may needs be removed to check this. There are four 14mm or 15mm bolts, one at each outboard corner of the seat, the front ones under snap-on plastic covers, which anchor the seat to the vehicle. These bolts are installed with an anti-seize anchoring compound which make them difficult to remove, but aside from elbow grease, there is no other trick to removing them.
Good luck, and if I have helped you, please remember to comment/vote.

Posted on Feb 21, 2010

emissionwiz
  • 76630 Answers

SOURCE: Front passenger power seat inoperable

That is the power distribution center, the fuse box is under the dash to the left of the steering column under a cover, they are marked, the plastic cover will have FUSES molded into it.

Posted on Oct 13, 2008

Danniboi
  • 1098 Answers

SOURCE: The heated seats for the front driver and passenger don't work

yes maybe a fuse, also look under the seat and ensure the wire is connected they sometimes get caught when moving the seat back and forward and split against the metal seat base.

Posted on Jan 16, 2010

  • 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

  • 14 Answers

SOURCE: FRONT HEATED SEATS

you need to check the resistance in each of the heated seat elements in the seat. There's a two wire connector under the back of each front seat. The connector should be green. disconnect it and measure the resistance along the circuit going into the seat. if it isnt .1 - .3 ohms, replace the appropriate heated seat element

Posted on Jan 06, 2010

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2 Answers

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

Where is the relay that controls the front seats heating relay located in a 2005 Cadillac escalade


No relay for the heated seats , there is a driver seat module -electronics , if your heated seats are not working the heating elements are probably bad !


CHEVY GMC SEAT HEATER TROUBLESHOOTING

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Heated & a/c seats on 02 Lincoln Navigator - how do I repair them or where in KC area can I get them repaired at a reasonable price?


Take a trip to a Salvage yard for the Air-ride pump. Check out the heat elements on seats while you are there too. You can get some chassis wiring diagrams online at Autozone.com. They are free when you register your vehicle on their site.

Sometimes you can unplug the seat connectors and run an Ohms test on the seat heating elements. This way, if the loop for the heating element is intact, the seat probably is not getting power. Then switch to a voltmeter and test the power feed on the detached, uncoupled switch side of the connection. You should have power to the connector, but remember to have the car running to have the power available to the connector.

Mar 15, 2012 | Lincoln Navigator Cars & Trucks

1 Answer

Seat heating and cooling not working


assuming that neither front seat is heating then suspect the heated seat relay located in the drivers seat cushion

Mar 20, 2010 | 2005 Ford Expedition

2 Answers

FRONT HEATED SEATS


you need to check the resistance in each of the heated seat elements in the seat. There's a two wire connector under the back of each front seat. The connector should be green. disconnect it and measure the resistance along the circuit going into the seat. if it isnt .1 - .3 ohms, replace the appropriate heated seat element

Jan 04, 2010 | 2004 Cadillac Escalade

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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

Heated seats not working on 2002 Oldsmobile aurora


Hi


Thanks for using FixYa. Check for a broken wire connecting the heating element. A common cause for the heated seats to not work is a burned heater element. There is an element under the seat cushion cover, and one under the seatback cover. If either has failed, both will not work. Take the seat apart and investigate the problem thoroughly.

Determine if the front seat assembly heat element resistance values are within the specified range.
If the resistance values are NOT within the specified range, install a Front Seat Heater Package between the existing front seat trim cover factory heat elements and the seat cushion and back foam pads.


Please do accept the solution if the issue is resolved or else revert for further assistance.


Thanks

Rylee

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Failing heated seat


if you can, check for any unplugged adaptors inbetween the seat and seatback, sometimes they come unplugged moving the seat front to back

Mar 13, 2009 | 2004 Dodge Ram 2500

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Ford Windstar SE, 3.8L V6, 1999, front seat heat/defrost is cold


the blendor actuators strip out the gear inside the actuator cases on these all the time. replace the actuator.

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1 Answer

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

Jan 31, 2009 | 2002 Jeep Grand Cherokee

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