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Author Topic: Brake and tail lights not working.  (Read 109 times)

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Maystro

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Brake and tail lights not working.
« on: July 10, 2020, 07:45:38 PM »
Hi guy's,  just got my Moke running again and have noticed I have no taillights  or brake lights.  I do have rear indicators and reverse lights. 
I have checked the fuses and put new bulbs in.  Is their some where else I should be looking? 
Broken wire or earth? 
I'm not real good with electrics.  I'm guessing I need something to test a live circuit?

Thanks Brad.

moemoke

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Re: Brake and tail lights not working.
« Reply #1 on: July 10, 2020, 08:27:12 PM »
what year is your moke?

Any owner of a car with Lucas electric should have multiple tools for testing electrical systems but a test light would be a good start.
1976 Moke 1275cc (Dynky),
1976 Moke(Scarlet) current project,
1974 Moke with Suzuki GTI motor (project), 
1975 Moke rust bucket,
1967 Moke rust bucket

Maystro

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Re: Brake and tail lights not working.
« Reply #2 on: July 10, 2020, 09:19:17 PM »
Hi Moe, 

Dec 1981.  I also just replaced both steering wheel stalks although the problem was there before this. 
On another note the washer stalk doesn't work.  It had a raised rib on the plug which I ground off to fit.  The plug look identical. 

Sorry for trying to get a two for one deal ;-)

Brad

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Re: Brake and tail lights not working.
« Reply #3 on: July 10, 2020, 10:59:25 PM »
Hi Brad,
Check the switch behind the brake pedal.
May be A simple adjustment of the lock nuts.
HP
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Steam

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Re: Brake and tail lights not working.
« Reply #4 on: July 11, 2020, 09:03:17 AM »
The raised rib usually gives the plug correct orientation. Given that you had to grind it off maybe it is in backwards. If it is however a different plug the connections may be different. I seem to remember the washer has a separate wire that is not part of the plug.
 With the rear lights check that the lamp holders are not corroded as this will give a poor earth, also check the contact pins are not corroded or pushed back into the holder. they rely on spring pressure for connection and earthing.
 There are a couple of twin bullet connectors in the circuit as take off points and these can corrode. One for each should be near the passenger rear light cluster, and another is at the front near one or other of the head lamps. I assume you have front side lights as this is the same for tail lights. the brakes come from the brake switch.
A simple test light will make chasing circuits a whole lot easier just make sure of a good earth when using it.
Cheers, Dave

Maystro

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Re: Brake and tail lights not working.
« Reply #5 on: July 11, 2020, 04:28:01 PM »
Okay well I got the wipers going.  The new plug had come loose because its not a good fit even after filing down that ridge.  It only goes one way and I don't know why it was their.  Maybe some model had it at one point in time.  Anyway filed it down more wrapped the whole plug with cloth gaf tape. 

The lights looks like it could be a whole myriad of things which are beyond my abilities.  The actual main light switch on the dash seems a bit hit and miss.  Sometime if I flick it on the head lights don't go on, other times they do and the tail lights come on sometimes.   I stuck my finger behind the dash where the wires go into the switch and the wires are really hot. 
As for the brake lights, they never come on.  I even tried disconnecting the two wires which go to the pedal switch and joined them together to see if that made any difference.  I'm not sure if it is when they are connected or not connected which is suppose to activate the brake lights.

Any way I think a trip to an auto lecci is called for?


SaharaDust

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Re: Brake and tail lights not working.
« Reply #6 on: July 11, 2020, 04:50:22 PM »
Had similar problem with no brake lights and had me stumped for a while. Tracked it down to the spade connectors on two fuse block (81 build) the spade connectors had a greasy film on them. So cleaned both male and female and brake lights worked and have done since. I put it down to age and fairly hostile environment.  After cleaning brake light connectors did the rest of connectors in fuse block and all were in a similar greasy condition.  This does not do much in relation to tail lights but sounds like light switch might be worthy of further investigation The wipers washers on 81 can also pickup power from same fuse as brake lights

Terry

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Re: Brake and tail lights not working.
« Reply #7 on: July 11, 2020, 05:58:32 PM »
Hi,

the ignition needs to be on when joining the brake light switch wires together.

The hot wires in the light switch can be due to a poor connection and or build up of crud in the switch. You can pull the switch out and clean up the terminals inside. Either disconnect the battery first or make sure the brown wire can't touch metal as it is always live.

Terry
I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is.


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Maystro

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Re: Brake and tail lights not working.
« Reply #8 on: July 11, 2020, 06:15:08 PM »
Thanks Terry,

Yeah I had the ignition on whilst testing.

I reckon your right about that switch needing to be pulled out and 40 years of crud being cleaned off the terminals.  Is their a way to pull the switch out from the dash or do I have to remove the dash which looks like removing the winder demister bar as well.   That's why I didn't venture further.

Thanks Brad.

Terry

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Re: Brake and tail lights not working.
« Reply #9 on: July 11, 2020, 06:30:18 PM »
Hi,

if it is the normal rectangular switch it is a pressed in fit and sometimes can be pulled out from the front if you can get something under the edge. Otherwise if you can get your hand up inside the dash you can try and squeeze the sides of the switch and push it through the to the front.

Terry
I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is.


Cujo. 1999 - 2016