 How do you reset the master cylinder brake switch, The 2 wire type |
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| 913B |
 Sep 5 2016, 08:30 PM
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Senior Member  Group: Members Posts: 854 Joined: 25-April 05 From: South Bay/SoCal Member No.: 3,983 Region Association: None  |
The brake switch on my master cylinder has 2 wires. I didn't see any reset button. When I unplug the brown/white signal wire going to the brake light in the gauge. The brake light will respond accordingly to the hand brake and go out. Before it would stay lit all the time regardless if the handbrake was applied or released.
So the question is how do you reset the brake switch or do I need to bleed the brakes ?? The brake light was working fine until the transport company moved my vehicle. I think the driver may have applied the brakes too hard maybe (IMG:style_emoticons/default/confused24.gif) Let me know you thoughts. Thanks everyone ! (IMG:style_emoticons/default/driving.gif) |
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| North Coast Jim |
Sep 6 2016, 12:02 PM
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Member Group: Members Posts: 331 Joined: 11-December 15 From: Northern Ohio Member No.: 19,450 Region Association: MidAtlantic Region 
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QUOTE(porsche913b_sp @ Sep 5 2016, 10:30 PM)  The brake switch on my master cylinder has 2 wires. I didn't see any reset button. When I unplug the brown/white signal wire going to the brake light in the gauge. The brake light will respond accordingly to the hand brake and go out. Before it would stay lit all the time regardless if the handbrake was applied or released. So the question is how do you reset the brake switch or do I need to bleed the brakes ?? The brake light was working fine until the transport company moved my vehicle. I think the driver may have applied the brakes too hard maybe (IMG:style_emoticons/default/confused24.gif) Let me know you thoughts. Thanks everyone ! (IMG:style_emoticons/default/driving.gif) Just reworked my entire brake system with help from PMB Performance. Replaced the master cylinder as well. I too had the persistent "brake" light flashing/alarm and didn't know how to remedy the situation. Was told by Eric at PMB that I needed to reset the switch. Since I had the car up on stands I could easily get to the master cylinder again. Removed the boot protecting the two electrical wires. Adjacent to the two electrical posts is the switch, not really a switch since all you have to do is push it in. It is only a protrudence of plastic and not easily recognized as a switch. Push on it while the key is turned to the on position. You will hear the cessation of the brake alarm. The brake light will stop blinking. Easy. I've had to do this twice now once with the car on the ground. |
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| Kansas 914 |
Sep 6 2016, 12:12 PM
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#3
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Advanced Member Group: Members Posts: 2,999 Joined: 1-March 03 From: Durango, Colorado Member No.: 373 Region Association: Rocky Mountains
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It is the black "shaft" in this picture.
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Posts in this topic
porsche913b_sp How do you reset the master cylinder brake switch Sep 5 2016, 08:30 PM
Krieger The reset is on the left side of the master cylind... Sep 5 2016, 09:36 PM
porsche913b_sp
The reset is on the left side of the master cylin... Sep 5 2016, 10:03 PM
porsche913b_sp
The reset is on the left side of the master cylin... Sep 5 2016, 10:06 PM Krieger Post a pic of your master cylinder Sep 6 2016, 09:33 AM porsche913b_sp I wish I had a pic of my switch the center part is... Sep 6 2016, 01:07 PM porsche913b_sp So I have come to the conclusion there is no reset... Sep 8 2016, 09:36 PM Garland I have the same concern, have left the one wire lo... Sep 8 2016, 10:20 PM Garland
I have the same concern, have left the one wire l... Sep 8 2016, 11:36 PM porsche913b_sp you want to switch to 2 pole ?? You mean to replac... Sep 8 2016, 10:41 PM Dave_Darling I have a two-pole switch with a reset button...
M... Sep 9 2016, 09:55 AM NoEcm I just installed a new single pole switch because ... Sep 9 2016, 10:35 PM porsche913b_sp Thanks everyone for the contributions. I want to s... Sep 11 2016, 04:50 PM |
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