Disco 1 No brake lights

Just noticed I have no brake lights fuse is ok can't see that both bulbs blew at the same time but do they share an earth if so where is it ?.also brake light switch abs 4 pin type would this be two circuits open with pedal up and two close when pedal is pressed down?.

Had the same issue... Switch was fooked

Discounting the wiring, the brake light circuit is very simple. There's the fuse on the live side of the circuit, the switch is next before the power is fed to the bulbs. So no brake lights is fuse, switch or bulbs, providing the wiring and grounds are ok.

Each lamp has it's own earth point not common so quite unlikely to be earth issue, if none of the 3 brake lamps is working and the fuse is OK then the switch is the first suspect

mr glee said:

also brake light switch abs 4 pin type would this be two circuits open with pedal up and two close when pedal is pressed down?.

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Yes

Rodeo Joe said:

Had the same issue... Switch was fooked

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Yep, me too, been there done that and got the T-shirt and the old sw to prove it

View attachment 196578 may help does the high level work if so check bulbsView attachment 196576

mystery said:

may help does the high level work if so check bulbs

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It may help you in knowing that this thread it for a D1 and the OPs D1 is a1997MY. So why not post the correct diagram for the D1 and one that’s with out a high level brake light.

+1 for switch.

sorry wrong model merry Christmas

discool said:

So why not post the correct diagram for the D1 and one that’s with out a high level brake light.

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All the D1 diagrams have the 3'rd brake lamp in them

sierrafery said:

All the D1 diagrams have the 3'rd brake lamp in them

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So why is that then when only the last D1 model year had that feature.

discool said:

So why is that then when only the last D1 model year had that feature.

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I have no ideea i just know that it's shown in all the 300Tdi diagrams i've seen back to '95 and it's shown in all the workshop manuals how to change the bulb in the repairs section

sierrafery said:

I have no ideea i just know that it's shown in all the 300Tdi diagrams i've seen back to '95 and it's shown in all the workshop manuals how to change the bulb in the repairs section

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I expect the high level stop light circuit In the diagrams was added also for non UK spec discos in 1995, American/ Japanese markets and others maybe.
So one diagram fits all much like RAVE manual for the D1 I’ve seen what ever the engine fitted. But in the UK that lamp wasn’t fitted till the 98MY D1 arrived.

mr glee said:

Just noticed I have no brake lights fuse is ok can't see that both bulbs blew at the same time but do they share an earth if so where is it ?.also brake light switch abs 4 pin type would this be two circuits open with pedal up and two close when pedal is pressed down?.

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Anyway........get a new switch they're only a few quid before you rewire the whole car.

If its the switch then it was AMR2010 but now superseded by LR005794
https://www.lrdirect.com/LR005794-S...4QFGDLefRBqPkDB-Dot6oeAgg6MQx77BoCSZkQAvD_BwE

MY1997 electrical troubleshooting manual LRL0077ENG 4TH edition shows high level but no legend for high level brake light

Thanks everyone new switch fitted and have brake lights again.

mr glee said:

Thanks everyone new switch fitted and have brake lights again.

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Hi 5 guys!