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cypermethrin

Member Since: 15 Dec 2010
Location: Berkshire
Posts: 93

2008 Defender 110 Puma 2.4 SW Bronze Green

Rear demister voltage sensitive switch?

Just bought an 08’ 2.4, working on a list of things to repair.
There’s no voltage at the rear window wires (the grid is alright) - there is power to the switch, switch relay and lamp - but the circuit diagram points to a voltage sensitive switch.

Not behind the dash as on the old ones, not under passenger seat... is it in the RH fuse board in a different case (as it’s newer?) or someplace else?
Was thinking behind center dash, before or after rear door maybe...

If I’ve gotten hold of the wrong diagram and in fact there isn’t one, it may be the wire. But looms seem in good condition so would be odd!

Anyone know if this model has the VSS or is a simple switched relay and I’m missing something more basic?

Thanks,
Tim

23rd Nov 2020 7:35pm

Martin
Site Admin

Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6605

2015 Defender 90 Puma 2.2 XS CSW Montalcino Red

No VSS on the rear heated screen wiring on a Puma, not sure when LR stopped fitting them but they haven’t been on for a very very long time!

There is a timer/enable unit on the FRONT screen, perhaps this is what you’ve seen?

There is a normal relay so check this is working ok (perhaps by swapping over with another of the same).

1988 90 Td5 NAS soft top

2015 D90 XS SW

23rd Nov 2020 8:23pm

llessur

Member Since: 15 Nov 2011
Location: Hereford
Posts: 151

Please don't forget to check for broken wiring in the convoluted rubber grommet / tube between the door and body tub, if you have not done so already.

24th Nov 2020 11:42am

cypermethrin

Member Since: 15 Dec 2010
Location: Berkshire
Posts: 93

Solved! No wonder the ground was shoddy - was trying to get thru the hinge plus everything else frayed... further back than I looked.
repaired and did the rear window lamp where it rubbed through too.
Thanks for the suggestions, the breaks were behind the plastic speaker housing, I briefly scoped the circuit and it was awful so assumed it was further back as the door was alright in the end.

Onto the next fault!

26th Nov 2020 4:45pm

llessur

Member Since: 15 Nov 2011
Location: Hereford
Posts: 151

Glad you got it fixed .
Although it's frustrating when things stop working, it's satisfying when you get it sorted.

26th Nov 2020 4:48pm

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