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SC 1982 - Parking brake light permanently on
Hi all,
I have already been disassembling the hand brake to verify if the brown wire was disconnected... it was not. Anyone has a clue of what might be the reason?
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ROW '78 911 Targa
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Do or did you have a rear brake light burn out or not lighting completely that you fixed recently?
On my car I have to disconnect the battery to clear the latched relay for the brake light after fixing a loose or burnt out brake lamp.
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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Fb = M/S
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The brake light on is indicative of a pressure problem with the brake system. Mine was on for a long time, and it turned out my Master Cylinder was leaking. Replaced the MC and the light went off. Check your Master Cylinder and all brake lines/hoses.
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Recreational Mechanic
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Bob: Try the parking brake
Doug: Take off 'eh, the parking brake never worked Start watching at about 2:25: Strange Brew 1983 "no point in steering Now" - YouTube
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P Cars: 2022 Macan GTS / One empty garage space ---- Other cars: 2019 Golf R 6MT / 2021 F-250 Diesel / 2024 Toyota GR86 6MT ---- Gone: 1997 Spec Boxster Race Car, 2020 GT4, 2004 GT3, 2003 Carrera, 1982 911SC, 2005 Lotus Elise and lots of other non-Porsches PCA National DE Instructor #202106053 / PCA Club Racing / WRL Endurance Racing |
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Thanks for the input.
Master cylinder was new and all the bulbs are working properlly... I will try to reset the relay. Thanks all.
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Join Date: Mar 2008
Location: Tulsa, Oklahoma
Posts: 1,079
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On my '83 there is a switch under the parking brake lever. Cant check on my car but from memory the lower edge of the lever pushes on the switch such that it is closed when the parking brake is released. The switch has some vertical movement and is held in one place by a locking screw. Mine is at the highest point of travel but I still have the problem of the light staying on. If I release the parking brake then push down on it the light goes out but after driving for awhile the brake lever lifts off the switch just enough for the light to come on. Hope you find a solution. I guess you could always black insulation tape over the dash light?
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1983 Porsche 911SC - Arrow Blue lightweight '74 Carrera look http://forums.pelicanparts.com/porsche-911-technical-forum/498568-overdue-intro-sc-hotrod-project.html |
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Do the SCs have brake pad wear indicators as my Carrera has? If so, that would illuminate the same light.
I'm very determined to help somebody on Pelican after all the help I have received from this board...
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Dave Black 1985 911 Carrera M491 |
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Recreational Mechanic
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Mine does not, but I think low brake fluid level might turn this light on as well.
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P Cars: 2022 Macan GTS / One empty garage space ---- Other cars: 2019 Golf R 6MT / 2021 F-250 Diesel / 2024 Toyota GR86 6MT ---- Gone: 1997 Spec Boxster Race Car, 2020 GT4, 2004 GT3, 2003 Carrera, 1982 911SC, 2005 Lotus Elise and lots of other non-Porsches PCA National DE Instructor #202106053 / PCA Club Racing / WRL Endurance Racing |
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sc's are sensor free. no brake fluid or brake pad.
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1980 911SC #99 track car, 993 3.6, 50 PMO's 2019 Ford F150 da dragger 2015 MB SL400 wifey DD 2008 E93 M3 DD 2007 E60 530 wifey winter beater |
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That's often an early sign of battery overcharging VR/alternator problems.
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Does the 82 have that reset button on the MC like earlier MY's?
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72 911T 2.4 MFI 2017 Escape SE 2.0 turbo 2020 Honda Civic Touring Sport 1.6 turbo 10' Madone 5.2/17' Lynskey ProCross |
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Brake light...
I replaced a leaking caliper ('82 SC) and my light went out. I think the system senses pressure problems as well as when the e-brake is left on.
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