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Frontier Rover

Member Since: 26 Mar 2021
Location: London
Posts: 2

Td5 D90 interior lights mystery

Hi guys. New to the forum but have gotten a lot of useful info from here so far! Ive got an early td5 Defender 90 and am slowly upgrading it to modern standards. Im trying to replace all the switches with carling rockers and so far been ok until i got to the interior lights. The old ones never worked and i decided to go with LED strips in the foot wells. Using a carling switch ive got to the point where they work when inturn them on full time. When i turn them on the door setting they turn on but are extremely dim but then won’t turn off automatically (I changed all the door switches and cleaned the connections(
So started looking behind the dash and found the AS10 (heard a lot of good things - NOT - alarm doesnt work btw) and noticed that the purple/brown wire going into it had been spliced and with a 15amp fuse connected to the ignition barrel

I don’t really get what’s going on now maybe someone has tried to bypass something?
How do i fix this and get the courtesy lights to work with the doors?
Tks in advance

26th Mar 2021 9:17am

DSC-off

Member Since: 16 Oct 2014
Location: North East
Posts: 1401

2015 Defender 110 Puma 2.2 XS CSW Aintree Green

Hi, this sounds like the common problem seen when putting LED bulbs in the interior light.
The A10S allows a low voltage to flow through the circuit as part of the alarm function.
With normal filament bulbs, it won't light them, but it will make LEDs glow faintly.

It does sound like there's something else going on with your wiring too.

26th Mar 2021 9:58am

Frontier Rover

Member Since: 26 Mar 2021
Location: London
Posts: 2

Yea definitely someone tinkered with it but good to know the dim LED is kinda normal.

Anyone know where the interior light loom connects to behind the dash? Just the AS10?

I meant to upload these pics - not sure they’re coming thru

Click image to enlarge

26th Mar 2021 12:13pm

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