Defender 90 brake light

REEVSY · Mar 5, 2015

Hi All,
Perplexed! My off side brake light will not work, unit quite tatty so replaced it as well as the back connector unit, still not working! I have 12v at the side light which works I also have 12v at the brake light bulb connector right to where the bulb sits but will not light. Put this unit and bulb on the other side it works OK both side & Brakes. Checked the earth return which registers OK, which is demonstrated by the side light working. I even rapped a wire round the bulb and run it straight to earth still no light so any other ideas would be welcome.

nobber · Mar 5, 2015

Have you checked the bulb?

zeaphod · Mar 5, 2015

REEVSY said:
Hi All,
Perplexed! My off side brake light will not work, unit quite tatty so replaced it as well as the back connector unit, still not working! I have 12v at the side light which works I also have 12v at the brake light bulb connector right to where the bulb sits but will not light. Put this unit and bulb on the other side it works OK both side & Brakes. Checked the earth return which registers OK, which is demonstrated by the side light working. I even rapped a wire round the bulb and run it straight to earth still no light so any other ideas would be welcome.

12v at the connector does not mean there is enough current to light the bulb. Work your way back, using the old unit as a test light - start where the loom comes into the body at the off side. If its ok there, then the wire to the light unit has to be faulty.

blue beasty · Mar 5, 2015

zeaphod said:
12v at the connector does not mean there is enough current to light the bulb. Work your way back, using the old unit as a test light - start where the loom comes into the body at the off side. If its ok there, then the wire to the light unit has to be faulty.

^^^^^ this is true, it once took me ages to try and work out why a numberplate light wouldn't work. I had 12v at the bulb holder but wouldn't light a bulb.

Ran a new feed and it was fine.

REEVSY · Mar 5, 2015

OK thanks all. Yes I even tried the bulb on the other side. I will now have to trace back the present wire and as suggested test at each point👍.

REEVSY · Mar 6, 2015

Had another go this AM and managed to get everything working! it was the great British bloody bullet connectors. I also, as a precaution added extra earth returns. I'm thinking of changing side lights and indicators to led bulbs any comments? Now I need a cup of Tea! which at 72 is all I can cope with!

Defender 90 brake light

REEVSY

Member

nobber

Well-Known Member

zeaphod

Well-Known Member

blue beasty

Leaks an prone to bits dropping off

REEVSY

Member

REEVSY

Member

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