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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Feb 2009
Posts: 159
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Feb 2009
Posts: 159 |
Hi on my 1992 4/4 the brake lights come on as soon as the ignition key is turned to the on position and remain on all the time. Whether or not the engine is running.
Depressing the brake pedal makes no difference to the light.
I suspect a defective brake light switch.
The switch is a Hydraulic type,
If a wire is removed from the switch the lights go out.
All the posts I have read online refer to brake light switches being faulty because the lights will not come on at all.
Am I correct that my switch needs replacing or should I be looking for a different fault and if that is the case what should I try instead?
Any help greatly appreciated.
Addicted to Morgans. 44 years and still not cured.
1947 series 1 4/4
1992 4/4
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Joined: Jul 2007
Posts: 27,830 Likes: 757
Member of the Inner Circle
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Member of the Inner Circle
Joined: Jul 2007
Posts: 27,830 Likes: 757 |
Sounds like a failed switch to me. If you are quick you can swap them over without having to bleed the fluid.
First I'd buy a new switch ( a word of warning most come out of Asia now and are poor quality) . Connect the switch without plumbing it in. If the light is off then the old switch is broken.
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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1 member likes this:
+8Rich |
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Joined: Feb 2016
Posts: 8,692 Likes: 414
Needs to Get Out More!
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Needs to Get Out More!
Joined: Feb 2016
Posts: 8,692 Likes: 414 |
Agreed, there is a permanent short on switch. This replacement should fit being the recommended 51610.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Joined: Feb 2009
Posts: 159
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Feb 2009
Posts: 159 |
Thanks guys I will go ahead and order one now then.
Addicted to Morgans. 44 years and still not cured.
1947 series 1 4/4
1992 4/4
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