Home > Puma (Tdci) > Could this be a Brake switch issue? |
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Marks Landy Member Since: 09 Feb 2015 Location: Cheshire Posts: 299 |
How’s the level in the brake reservoir ?
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11th May 2022 11:46am |
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nidge n Member Since: 04 Feb 2012 Location: Cheshire Posts: 719 |
Hi Mark, brake level seems to be ok, settling on the high level line.
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11th May 2022 12:52pm |
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blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17443 |
The first thing I would try is disconnecting the harness from the brake light switch and shorting the terminals on the harness-side connector. This would allow you to determine if it is the movement of the pedal grounding something (trapped wire etc) or if it is a short between the brake light circuit and the interior light.
The interior light is a switch-to-ground circuit so it is possible that is it a strange earth fault, and when you press the pedal the brake lights provide a path to earth. |
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11th May 2022 4:54pm |
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nidge n Member Since: 04 Feb 2012 Location: Cheshire Posts: 719 |
my job for tomorrow, thanks for helping
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11th May 2022 7:19pm |
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Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3422 |
Is it the dash illumination or the Interior light that is coming on?
I would check if they are simultaneously coming on together. So either with the help of an assistant, ir park it with the rear against a wall so you can see when the brake lights are on, slowly press the brake pedal until either one comes on. If they light up simultaneously, then most likely a poor earth that is causing a potential on the illumination/light. If one comes on after the other, then something chafing on the pedal itself. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing 2012 90 CSW, 2.2TDCI, Santorini Black |
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11th May 2022 7:57pm |
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