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9fourteen14 |
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#1
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PORSCHE LUVA ![]() ![]() Group: Members Posts: 135 Joined: 5-July 15 From: boston Member No.: 18,920 Region Association: North East States ![]() |
so i have a 74 2.0 914
problem: my emergency brake light continues to flash even when i raise the emergency brake. I got pelican parts diagnosis and possible cure but i don't think i have the same switch because i do not see a little plastic button i can switch towards the master cyclinder. see pictures below. BTW: my switch is rusted a lot. there are 2 varieties pelican points out:1: low pressure when pedal is pushed to floor and reset hen lift off floor (I am NOT seeing that) 2: pressure failure and then remains locked until manually reset. WHERE IS THE BUTTON TO RESET IT? I DO NOT SEE IT? check out the 2 pictures.... any other ideas? thanx Niece Attached thumbnail(s) ![]() ![]() |
914_teener |
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#2
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,266 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California ![]() |
That circuit is tricky and works through a series of switched ground including the door switches if that is a 73.
My quess would be: 1. The switch on the e-brake at the MC is corroded and or stuck and needs to be cleaned or replaced. Not all of them have switches 2. Somewhere on the circuit the switched grounds are grounded. In my 73 it turned out to be the door switches which were worn out. The flashing was indicated that with the circuit designed to let me know that the door was ajar or open....analog sytle Check those things. Edit: See the car is a 74. IIRC the circuit works the same way if it is an early 74. |
lierofox |
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#3
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Member ![]() ![]() Group: Members Posts: 256 Joined: 23-June 15 From: Paso Robles, CA Member No.: 18,880 Region Association: Southern California ![]() ![]() |
There seems to be a couple different switches I've seen used in the MC.
The one with the reset button is visible in this thread: http://www.914world.com/bbs2/index.php?sho...p;#entry1750709 |
914Sixer |
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#4
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 9,180 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region ![]() ![]() |
NO reset on that one. There was a two pole (70-73), one pole (as shown) and a one pole with plastic reset shown is picture.
Have you checked to make sure the switch button is all the way out when you pull the lever up. Attached image(s) ![]() |
Spoke |
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#5
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Jerry ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 7,185 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None ![]() ![]() |
If you remove the wire on the MC switch, does the brake warning light go out? The e-brake handle switch is in parallel to the MC switch. Either one of those can cause the brake warning light to light up.
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