Jonmoore1970
Member Since: 19 Apr 2020
Location: Wokingham
Posts: 125
 
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| Discovery 3 wiring expert required. FIXED |
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Hi guys, I’m looking for someone who knows about the wiring on these cars.
I have an intermittent problem. 9 times out of 10 times the drivers electric seat will not work, when this happens the electric mirrors won’t adjust (although they will fold)...and the sunroof will not operate either.
The 1 time out of 10, when one works they all work, with no issues.
The carpet is bone dry on both sides and no sign of water ingress that I’ve found.
I’ve checked the loom that runs along the drivers side sill and all looks good with no obvious problems, the earths in the footwell look good and tight.
HELP !
Tia😂
Last edited by Jonmoore1970 on 15th Jul 2020 5:55 pm. Edited 1 time in total
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 5th Jul 2020 5:37 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10363
 
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Do the rain sensing wipers also not work when you have the other problem
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| 5th Jul 2020 5:52 pm |
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Jonmoore1970
Member Since: 19 Apr 2020
Location: Wokingham
Posts: 125
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Good question. They wasn’t working the other day when it was raining, but I hadn’t made that connection.....
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| 5th Jul 2020 5:54 pm |
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Jonmoore1970
Member Since: 19 Apr 2020
Location: Wokingham
Posts: 125
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just checked.
The rain sensor isn’t working, and the seat etc isn’t working either.
When it all decides to work again I’ll check the rain sensor too.
So....is there something that I can do Pete?
Thanks
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| 5th Jul 2020 6:01 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10363
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Well it may mean that the Lin bus has a problem
Or one if the Ecus in it is causing the problem.
You could unplug the sunroof box for a few days and see if that helps the seat problem.
Next try the large module under the seat.
Then the rain sensor
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| 5th Jul 2020 6:17 pm |
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Jonmoore1970
Member Since: 19 Apr 2020
Location: Wokingham
Posts: 125
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I’ve got 2 D3s, so I think I’ll swap the seats out first.
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| 5th Jul 2020 6:24 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10363
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Probably just worth disconnecting things first and see if the other things start working ok
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| 5th Jul 2020 6:26 pm |
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Jonmoore1970
Member Since: 19 Apr 2020
Location: Wokingham
Posts: 125
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Okay. Where’s the sunroof box?....easier to remove the fuse or will that not work?
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| 5th Jul 2020 6:50 pm |
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Jonmoore1970
Member Since: 19 Apr 2020
Location: Wokingham
Posts: 125
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Okay. Where’s the sunroof box?....easier to remove the fuse or will that not work?
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| 5th Jul 2020 7:04 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10363
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In the roof. Part of the motor.
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| 5th Jul 2020 7:06 pm |
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Jonmoore1970
Member Since: 19 Apr 2020
Location: Wokingham
Posts: 125
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| 5th Jul 2020 7:18 pm |
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PCT3
Member Since: 13 May 2017
Location: Kent
Posts: 144
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I don’t know the answer but do basics first check the fuses
I have just fixed an Isuzu pickup, spent two days at the dealers and £350 cost for them not to find the fault,
Air con and drivers window not working, 1 hours work with manual and test light found a fuse that controlled both circuits replaced and all good, fuse wasn’t listed for Those circuits, a general ign supply fuse Discovery 3 HSE 07
Discovery 1, Search & Rescue SE4x4 Responce
Fiat Decato motor home
Mazda MX5
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| 6th Jul 2020 3:23 pm |
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Nasher
Member Since: 07 Mar 2009
Location: Clanfield, North of Pompey - UK
Posts: 2685
 
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There's a couple of connector blocks under the seat that can play up.
But be careful as they are mainly for the Airbags etc.
Wiggle them about whilst operating the seat.
Nasher. Heaven doesn't want me, and hell is afraid I'll take over.
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| 6th Jul 2020 3:28 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10363
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did you guys not notice the title said, expert needed  sorry 
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| 6th Jul 2020 4:49 pm |
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Jonmoore1970
Member Since: 19 Apr 2020
Location: Wokingham
Posts: 125
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So today gents. I stripped and inspected the loom on the passenger side, all was dry and looking fine.
I unplugged the sunroof module, to see if anything else came to life, but nothing. I did the same with the rain sensor and the drivers seat....no luck.
Then I swapped the drivers seat with one out of my other D3 and still nothing.
the odd thing was everything worked all morning, just decided it didn’t want to play this afternoon.
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| 6th Jul 2020 7:08 pm |
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