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Kent_keith

Member Since: 01 Jun 2014
Location: Kent
Posts: 388

Heated seats

Now winters upon us, there's a few things that need looking at that I swore I'd do before i needed them Laughing first one is my heated seats, they used to get really hot, now the passenger seat is just warm, and the drivers side doesn't work at all?

Questions

What controls the heating limit? Has it a thermostat connected somewhere?
And although I have supply to the drivers side coming in from the seat box it disappears up into the backrest (that doesn't work) but I could only test the seat connection which is dead? Does it daisychained somehow, and how difficult is it to get to the backrest connection

Ta 2005 TD5 90 CSW XS

7th Nov 2016 5:05pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Click image to enlarge

What controls the heating limit? thermostat connected in seat heat pad

power is only on with engine running

7th Nov 2016 5:26pm

Kent_keith

Member Since: 01 Jun 2014
Location: Kent
Posts: 388

Thank you Mr Smith

are you sure it's for a 2005 as as I've got power there without the engine running? 2005 TD5 90 CSW XS

7th Nov 2016 5:47pm

Romadog

Member Since: 07 Jul 2011
Location: Powys
Posts: 1750

Wiring is correct for 2005.
Are you sure you are checking the right plug?
One connects to seatbase and joins to seatback element and the other connects to plug coming through seat box.

7th Nov 2016 5:52pm

Kent_keith

Member Since: 01 Jun 2014
Location: Kent
Posts: 388

It comes up from the drivers side seat box, then connects to the back rest, then comes back to the seat? 2005 TD5 90 CSW XS

7th Nov 2016 5:56pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

yes as from 2002 wiring stayed same to 2006 for LR fitted wire loom so that not battery drain with out engine running and DC alt charging the battery

7th Nov 2016 5:58pm

Kent_keith

Member Since: 01 Jun 2014
Location: Kent
Posts: 388

I have voltage there without the engine running? About 11.5volts without the engine running, but about 14 volts with it running, 2005 TD5 90 CSW XS

7th Nov 2016 6:10pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

i tack it you have key in and tuned to position 2 so that ( relay ignition / heated seat, window lift number 6 in passenger fuse box) can close contact and the switch on the centre dash switch on

Click image to enlarge

7th Nov 2016 6:42pm

Kent_keith

Member Since: 01 Jun 2014
Location: Kent
Posts: 388

Yes that's correct thank you, can anyone tell me how to inspect the connection for the backseat as I need to look at this first

2005 TD5 90 CSW XS

8th Nov 2016 7:35am

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

two heat pads pre seat 2.1 ohms N/C thermostat opens heat up in bottom part of seat

1. open cct heat pads or open cct wiring or thermostat failed open all time

2. seat covers will need to be removed to check all pints in number 1

Exmoor trim video show's the way de construct the seat

http://www.exmoortrim.co.uk/videos

8th Nov 2016 9:21am

Martin
Site Admin

Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6645

2015 Defender 90 Puma 2.2 XS CSW Montalcino Red

Heated seats operate with ignition on, there is no engine run signal or feed involved in the heated seat circuits.

The front heated windscreen is only operational with the engine running, perhaps this is where the confusion has come in.

Martin

1988 90 Td5 NAS soft top

2015 D90 XS SW

8th Nov 2016 9:35am

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