Question about 2004 Toyota Sienna
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Posted on Jan 02, 2017
SOURCE: Heated seat
Could be that the wiring for the heater is broken, or that the heating element itself has been damaged. Has anyone knelt on the seat when reaching in to get something out of the car? Or has anyone stood on it (a child maybe)? Pressure like that can break the heaters and keep them from firing up.
Posted on Sep 17, 2008
The problem is most likely caused by shorted heating grids in the seat cushion itself, kind of like the heating element in an electric blanket, very expensive to replace.
Posted on Dec 12, 2008
check the fuse on the panel, the fuse panel are located in the driver side right by the panel,and check the wires under the seat.
Posted on Sep 15, 2009
its not the module,,its more than likely the drivers side seat heater element,i would say the seatback element,remove the seat cover,just unlatch it under the seat from the rear of seat under it and then pull up its velcrod on,,and then youll see a little burn on the heater pad and thats your problem,then you need a new element,,,thats why theydont work,it causes a open in the system
Posted on Oct 09, 2009
No fuse.These seats are protected with relays and a seat module.The module is under the drivers seat.There are 3 connectors and it would be hard to check all these wires for power to the motors.First look under the seat and make sure none of the connectors came apart under the seat by something that might have been left or rolled under it.The 2 main ones you can check are the connector 2 terminal C and connector 3 terminal A.C is a black wire which is ground and A is a red wire which is the feed power wire.Connector 2 is green and 3 is black.If the ground and power wires are good then you could have a bad drivers seat module.What I would do is go to the salvage yard and find a used module to try.Good luck.
Posted on Dec 07, 2009
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