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#553033 - 10/01/19 04:21 PM Brake Lights not Working
V8Dave Offline
Just Getting Started

Registered: 24/11/16
Posts: 43
Loc: 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.

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#553055 - 10/01/19 05:09 PM Re: Brake Lights not Working [Re: V8Dave]
John V6 Offline

Member of the Inner Circle

Registered: 21/07/07
Posts: 12901
Loc: Suffolk
Check the earth at the rear of the car.
Is there power at the switch?
_________________________
JohnV6
2006 Indigo Blue Roadster S1

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#553060 - 10/01/19 05:25 PM Re: Brake Lights not Working [Re: John V6]
V8Dave Offline
Just Getting Started

Registered: 24/11/16
Posts: 43
Loc: 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.

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#553071 - 10/01/19 06:05 PM Re: Brake Lights not Working [Re: V8Dave]
clubsport Offline
Just Getting Started

Registered: 12/08/08
Posts: 41
Loc: 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.

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#553086 - 10/01/19 07:00 PM Re: Brake Lights not Working [Re: V8Dave]
xc68anc Offline
Just Getting Started

Registered: 16/11/18
Posts: 45
Loc: 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

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#553094 - 10/01/19 07:22 PM Re: Brake Lights not Working [Re: V8Dave]
sospan Offline
Talk Morgan Sage

Registered: 31/05/10
Posts: 6043
Loc: 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

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#553131 - 10/01/19 11:26 PM Re: Brake Lights not Working [Re: V8Dave]
Jacques Offline
Just Getting Started

Registered: 21/12/08
Posts: 28
Loc: 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

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#553174 - 11/01/19 11:14 AM Re: Brake Lights not Working [Re: V8Dave]
Felix42 Offline
Talk Morgan Regular

Registered: 17/12/13
Posts: 860
Loc: 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

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#553181 - 11/01/19 11:35 AM Re: Brake Lights not Working [Re: V8Dave]
DaveW Offline
Roadster Guru
Member of the Inner Circle

Registered: 11/12/08
Posts: 17137
Loc: 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

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#553185 - 11/01/19 12:05 PM Re: Brake Lights not Working [Re: V8Dave]
V8Dave Offline
Just Getting Started

Registered: 24/11/16
Posts: 43
Loc: 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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#553188 - 11/01/19 12:31 PM Re: Brake Lights not Working [Re: V8Dave]
MOG 615 Offline
Has a lot to Say!

Registered: 24/09/14
Posts: 1314
Loc: London
Dave

This sounds like a classic pressure switch failure to me as mentioned by John above. I assume the Series 1 Roadsters used the same switch as my 1999 +8? (Others like DaveW will know better than I)

Replacement of the switch itself is the only cure.

This is not exactly easy unless you can raise the car high enough to get good access from underneath. If you can, just remember to hold the switch body very firmly as you release each of the pipes , you don't want to bend/twist them as the job becomes a lot bigger if you do.
_________________________
Andy G
1999 +8 , Indigo Blue.
Ex-John McKecknie/Mike Duncan 1955 +4 racer.

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#553191 - 11/01/19 12:39 PM Re: Brake Lights not Working [Re: V8Dave]
Richard Wood Offline
Talk Morgan Enthusiast

Registered: 03/02/16
Posts: 1589
Loc: East Harling, Norfolk UK
According to latest parts manual for classics the brake light circuit between switch and lamps passes through a four way connector which also supports the reversing light circuit. Not sure where this connector is located but pin 2 feeds all three brake lights.

I would suspect a connection issue there. The earth's are split anyway so would only affect one lamp which doesn't seem to be the case.
_________________________
Richard

2018 Roadster - Red/Magnolia - "Morton"
1967 Land Rover series 2a SWB
1960 Velocette Venom

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#553196 - 11/01/19 01:03 PM Re: Brake Lights not Working [Re: V8Dave]
DaveW Offline
Roadster Guru
Member of the Inner Circle

Registered: 11/12/08
Posts: 17137
Loc: South Yorkshire
Yes S1 is standard pressure switch. I left mine in place and piggy backed the microswitch across the terminals through a relay. One of my early posts covers it.
_________________________
DaveW
2005 Corsa Red Roadster S1
2016 Saffron Yellow (Narrow) Plus 4

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#553202 - 11/01/19 01:23 PM Re: Brake Lights not Working [Re: V8Dave]
John V6 Offline

Member of the Inner Circle

Registered: 21/07/07
Posts: 12901
Loc: Suffolk
I went the LED route on mine.
_________________________
JohnV6
2006 Indigo Blue Roadster S1

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#553209 - 11/01/19 02:31 PM Re: Brake Lights not Working [Re: V8Dave]
Felix42 Offline
Talk Morgan Regular

Registered: 17/12/13
Posts: 860
Loc: Newton Abbot, South Devon UK
_________________________
John

Silver 2005 S1 Roadster V6 - Henrietta

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#553230 - 11/01/19 03:29 PM Re: Brake Lights not Working [Re: V8Dave]
Graham, G4FUJ Offline
Salty Sea Dog
Member of the Inner Circle

Registered: 03/07/07
Posts: 21903
Loc: Cheltenham, Glos. UK
Originally Posted By V8Dave
Hi.
... The brake light switch is mounted at the base of the brake pedal...

So, a micro switch I presume and not one in the hydraulic brake pipe?
_________________________
Graham (G4FUJ)

D8921 L44FOR '93 4/4 Giallo Fly 2 seat smile
'90 LR 90 SW
'07 MINI Cooper

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#553238 - 11/01/19 03:39 PM Re: Brake Lights not Working [Re: V8Dave]
John V6 Offline

Member of the Inner Circle

Registered: 21/07/07
Posts: 12901
Loc: Suffolk
It should be a micro switch by the age of the car Graham.
_________________________
JohnV6
2006 Indigo Blue Roadster S1

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#553243 - 11/01/19 04:07 PM Re: Brake Lights not Working [Re: V8Dave]
V8Dave Offline
Just Getting Started

Registered: 24/11/16
Posts: 43
Loc: West Auckland, Co. Durham
Hi All,

It is a micro switch at the base of the brake pedal. There is power to the switch but when the two leads are connected there is still no brake lights. Will concentrate the search tomorrow for the four way connector that Richard mentions and hope the issue is found there. Now just need to locate it. I am hoping it's under the spare wheel.

Thanks Dave

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#553327 - 11/01/19 10:24 PM Re: Brake Lights not Working [Re: John V6]
Graham, G4FUJ Offline
Salty Sea Dog
Member of the Inner Circle

Registered: 03/07/07
Posts: 21903
Loc: Cheltenham, Glos. UK
As I thought John from the original description. Just double checking, as a number of replies were referencing the problems experienced with the (Land Rover) hydraulic switch.

Dave, tracing wiring can be a pain. As both brake lights are not working, at least you are looking at a common section of cable/interconnection. Good chance it may be under wheel arch rather than spare wheel space. Good luck with the search. If I was closer I'd offer an extra pair of paws/eyes, test meter &c.
_________________________
Graham (G4FUJ)

D8921 L44FOR '93 4/4 Giallo Fly 2 seat smile
'90 LR 90 SW
'07 MINI Cooper

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#553400 - 12/01/19 11:10 AM Re: Brake Lights not Working [Re: John V6]
Roady Offline
Just Getting Started

Registered: 06/10/10
Posts: 69
Loc: returned OggieMogger
+1 - No problems since

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#553432 - 12/01/19 12:28 PM Re: Brake Lights not Working [Re: V8Dave]
V8Dave Offline
Just Getting Started

Registered: 24/11/16
Posts: 43
Loc: West Auckland, Co. Durham
Hi All,
Thanks for all the relies. As of this morning have eliminated the brake switch and any issues at the rear of the car. If I run a cable from the non live of the switch to the central pin on the main connector just inside the spare wheel space next to the drivers side rear wheel arch I have brake lights. Therefore the problem would appear to be between the switch and the main connector. I assume that the simplest way to repair this will be to run a new cable from the switch to the connector but any other suggestions on moving forward would be appreciated.
Thanks,
Dave

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#553445 - 12/01/19 02:18 PM Re: Brake Lights not Working [Re: V8Dave]
Graham, G4FUJ Offline
Salty Sea Dog
Member of the Inner Circle

Registered: 03/07/07
Posts: 21903
Loc: Cheltenham, Glos. UK
Very likely Dave.
The cable to the rear likely runs along the right hand sill (inside the car). You would have to remove the trim / leather etc. to follow it. Have a good check around the forward leaf spring mount that side, you may find where the cable goes through the panel below the parcel shelf. Just thinking out loud, but a possible pinch point?
_________________________
Graham (G4FUJ)

D8921 L44FOR '93 4/4 Giallo Fly 2 seat smile
'90 LR 90 SW
'07 MINI Cooper

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#553453 - 12/01/19 03:21 PM Re: Brake Lights not Working [Re: Graham, G4FUJ]
V8Dave Offline
Just Getting Started

Registered: 24/11/16
Posts: 43
Loc: West Auckland, Co. Durham
Thanks Graham,

Have run a new cable from the switch to the rear and the brake lights are now working. Need to tidy up the routing and sort out the connections.

Dave

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