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Brake Lights not Working #553033
10/01/19 04:21 PM
10/01/19 04:21 PM
Joined: Nov 2016
Posts: 43
West Auckland, Co. Durham
V
V8Dave Offline OP
Just Getting Started
V8Dave  Offline OP
Just Getting Started
V

Joined: Nov 2016
Posts: 43
West Auckland, Co. Durham
Hi.
The brake lights on my 2010 Roadster are not working. I don't believe it is the fuse as the reversing light works and, according to the fuse box listing this is on the same fuse. The brake light switch is mounted at the base of the brake pedal. I have disconnected the wires from the brake switch and tried jumping them but still no brake lights. Has anyone any suggestions to locate the problem.

Re: Brake Lights not Working [Re: V8Dave] #553055
10/01/19 05:09 PM
10/01/19 05:09 PM
Joined: Jul 2007
Posts: 13,496
Suffolk
John V6 Offline
Member of the Inner Circle
John V6  Offline
Member of the Inner Circle

Joined: Jul 2007
Posts: 13,496
Suffolk
Check the earth at the rear of the car.
Is there power at the switch?


JohnV6
2006 Indigo Blue Roadster S1
Re: Brake Lights not Working [Re: John V6] #553060
10/01/19 05:25 PM
10/01/19 05:25 PM
Joined: Nov 2016
Posts: 43
West Auckland, Co. Durham
V
V8Dave Offline OP
Just Getting Started
V8Dave  Offline OP
Just Getting Started
V

Joined: Nov 2016
Posts: 43
West Auckland, Co. Durham
Thanks for the quick response I will check the earth at the back of the car tomorrow. I am not sure there is power at the switch.

Re: Brake Lights not Working [Re: V8Dave] #553071
10/01/19 06:05 PM
10/01/19 06:05 PM
Joined: Aug 2008
Posts: 47
Kent / Se London
clubsport Offline
Just Getting Started
clubsport  Offline
Just Getting Started

Joined: Aug 2008
Posts: 47
Kent / Se London
Once you have checked the fuse and earth, I Would buy a brake light switch, fit the new one, if it makes no difference then you have a spare.

I have got through a couple of these over the years on my 4/4.

Re: Brake Lights not Working [Re: V8Dave] #553086
10/01/19 07:00 PM
10/01/19 07:00 PM
Joined: Nov 2018
Posts: 77
Germany, Rhein-Main Area
X
xc68anc Offline
Just Getting Started
xc68anc  Offline
Just Getting Started
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Joined: Nov 2018
Posts: 77
Germany, Rhein-Main Area
In cause the fuse mustn't be on the right place it's the first step to have a look about powerinput at the switch. The easy way: take a 12v bulb and put one cable to middle contactpoint and the other cable to the outside metal.

If the switch is broken the light would work if you fix the cables together as you had done.

If there is no power on the cable at the pedal and no fuse is broken (check ecery fuse!) than there may be a problem in the wiring.

Good luck!

René

Re: Brake Lights not Working [Re: V8Dave] #553094
10/01/19 07:22 PM
10/01/19 07:22 PM
Joined: May 2010
Posts: 6,240
Llanelli
sospan Offline
Talk Morgan Sage
sospan  Offline
Talk Morgan Sage

Joined: May 2010
Posts: 6,240
Llanelli
I had similar on my old 4/4 on the driver side rear indicator. I did the “wiggle” test on the wiring by reaching up under the wing and wiggling the wires. The earth wire was the problem. I took the light fitting off and the eatyh wire was simple rivetted to the plate and was not a tight fit. I renewed the fit , put vaseline over it and it sorted the problem. So, do as JohnV6 suggested. Check earthing.
A lot of the wiring on a Morgan is exposed and it is worth giving it a check, especially earth points.


Red Plus8
Re: Brake Lights not Working [Re: V8Dave] #553131
10/01/19 11:26 PM
10/01/19 11:26 PM
Joined: Dec 2008
Posts: 35
Between Paris & Montlhery - Fr...
Jacques Offline
Just Getting Started
Jacques  Offline
Just Getting Started

Joined: Dec 2008
Posts: 35
Between Paris & Montlhery - Fr...
Check all the fuses as the fuse box listing is only a joke !
My two cents


Happy Morgan +8 (2001) owner
BMW 435i - X Drive
Royal Enfield 500 EFI
Re: Brake Lights not Working [Re: V8Dave] #553174
11/01/19 11:14 AM
11/01/19 11:14 AM
Joined: Dec 2013
Posts: 889
Newton Abbot, South Devon UK
Felix42 Offline
Talk Morgan Regular
Felix42  Offline
Talk Morgan Regular

Joined: Dec 2013
Posts: 889
Newton Abbot, South Devon UK
The hydraulic brake light switches in older Morgans have a habit of burning out because the addition of the cobra light put too much current through them. The switch has very crude contacts inside (I sawed on in half once to have a look).

The solution to this is to fit a relay and/or LED lightbulbs.


John

Silver 2005 S1 Roadster V6 - Henrietta
Re: Brake Lights not Working [Re: V8Dave] #553181
11/01/19 11:35 AM
11/01/19 11:35 AM
Joined: Dec 2008
Posts: 17,516
South Yorkshire
DaveW Offline
Roadster Guru
DaveW  Offline
Roadster Guru
Member of the Inner Circle

Joined: Dec 2008
Posts: 17,516
South Yorkshire
I put a microswitch on the pedal of my 2005, with a relay. You could also retro fit the current pedal switch.


DaveW
2005 Corsa Red Roadster S1
2016 Saffron Yellow (Narrow) Plus 4
Re: Brake Lights not Working [Re: V8Dave] #553185
11/01/19 12:05 PM
11/01/19 12:05 PM
Joined: Nov 2016
Posts: 43
West Auckland, Co. Durham
V
V8Dave Offline OP
Just Getting Started
V8Dave  Offline OP
Just Getting Started
V

Joined: Nov 2016
Posts: 43
West Auckland, Co. Durham
Hi,

Checked the earths and all of the fuses and all OK. It would appear that there is power reaching the switch terminals as the test light lit when connected to the live wire coming in. However when you bridge the two leads there are no brake lights coming on. Would I be right in assuming there is a connection problem between the switch and the brake lights and is there a splitter connector at the rear of the car prior to the connectors at each lamp.
Thanks

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