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Interior light not working

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Any help much appreciated

Hi guys my interior light housing was shot so I bought a new one and a lamp, firing it all and it's not working, haven't checked for voltage etc yet but connections look okay and my radio works I thought they were on the same fuse? Or I am I wrong?
91 MK1 cabriolet clipper.

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Haven't checked for Voltage?  mmm

The Light is powered off of the F3 (15A) fuse on the red wire 12V+

The grounds which are wonky as they run up from the door switches and are a Itty-bitty wire can get disconnected (brown/white) there are 2 wires on the Drivers side one for the seat belt, and one for the light.

So if you jumper a ground (earth) to the lamp 31or tk it should light.

I would suggest that you carefully remove the door switches as it is but one screw, and  (I SAID CAREFULLY) remove the switch from the door to verify that the wires are still attached to the switch, and it wouldn't hurt to Polish the Plunger (remove the tarnish) tighten the Crimps a bit and replace.

The wires feed up the "A" Pillar from the Knee-bar access.


So I suspect that you don't have 12V or you have a bad fuse, as some after market Radios use separate fuses, it may be that your Radio isn't wired to F3 so check that with a meter…


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Also on the window control module there is a Brown and White wire that feeds from the door switch.

If you cut that wire at the controller you can then roll up your electric windows with the key out and the door open for about 15 minutes, and never have to worry about having to re-insert the key and to run if you left your windows down….:) (free gimme).


What do Divorces, Great Coffee, and Car Electrics all have in common?

They all start with GOOD Grounds.

Where are my DIY Links?

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Thanks for your help pal ! IL have a look, I'm an electrician by trade but didn't have my tools at home last night 🤦! Hopefully get it sorted now

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All sorted thanks chaps just got the boot light to sort now 😝! Should this come on when you open boot or is it tied in with your normal lights ?

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Yes with the lights on and the boot opened.

What do Divorces, Great Coffee, and Car Electrics all have in common?

They all start with GOOD Grounds.

Where are my DIY Links?
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