Question about Cars & Trucks
I changed the fuse but still the seats don't work what could be the problem
Was the fuse blown ?
If not-- why change it ?
Fuses don't fix a thing
Need a factory manual to follow a
trouble chart for seat problems
Posted on Nov 07, 2014
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Posted on Jan 02, 2017
There should be a connector under each seat which connects power to the heating element. It is likely either clipped to the seat or tucked under the carpeting. You'll almost definitely need to remove the seat to get easier access to it, though it should be possible to find/access it without removing it, just more difficult. Once you find it, disconnect it. You can use any multimeter with a continuity tester to test the circuit. First, check the DC voltage coming from the wires that come up from the floorboard. If you are getting voltage there, you will want to check continuity of the element itself by probing the two wires with the meter set to it's continuity testing selection. If there are more than two wires you will need to determine which is the common wire and which are the "live" wires. With the power disconnected you can test the element to figure this out easily. For example if your heated seat has three wires, test all three for continuity in pairs. If one wire always shows continuity no matter which other wires on the same plug you touch that should be common.
If the element tests good (in other words you find that all the circuits show continuity) and you are getting power from the plug that comes from the vehicle itself, you might need to check the resistance of the element. It is rare to have a bad element that still shows continuity, but it is possible that the resistance may have for some reason become lowered and the element therefore does not heat up.
Try these and let me know how it goes!
Posted on Jan 30, 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
Testimonial: "Thanks for your assistance. Great information"
Might want to check the driver's side door sill for a splice that is corroded.
In the SCab, I have seen this closer to the driver's side kick panel, where the hood release is at ( still in the door sill ), on the SuperCrew, I have seen this splice at the back, where the wires turn up the C-pillar.
Here are some pictures from other people that had this problem.
The front, the wire with the bad splice was reported to be a blue w/ White stripe wire.
When it is found in the back, it is a violet wire
If you check the fuses for those items, you will find the fuses are fine, but when you check the switch for the item, there is no power.
It will take some time, but checking for a broken splice, that is not obvious, but the chance is high you will find one in the sea of wires in the door sill.
Posted on Dec 21, 2009
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
SOURCE: BMW X5- power wheel, power seats
I have the same problem. Seat and steering column just stopped working. Passenger side normal. No fuse for these components. With so many postings witht he same problem there has to be a defective or worn out source. Please post if you find a solution!
Posted on Feb 18, 2010
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