 Brain Trust Help needed on Parking Brake Light, Parking Brake Light Always on...... |
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| Gatornapper |
 Jul 4 2025, 07:40 PM
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Senior Member  Group: Members Posts: 1,274 Joined: 22-September 17 From: Woods west of Richmond, VA Member No.: 21,449 Region Association: South East States 
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Once again need the help of the great 914 Brain Trust here........
My Parking Brake Light stays on all the time. The switch is fairly new and it is functioning properly. Disconnecting the brown (ground) wire to the switch, it has no continuity or resistance to ground. So it is not "grounded out" somewhere. I see in my great 914 electrical schematic of the ground circuit for the switch and light that there are two diodes in the circuit. I am guessing that one of them failed. Can anyone tell me where these two diodes are located? Or where else the problem might be? As always, TIA, GN |
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| Literati914 |
Jul 5 2025, 12:10 PM
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Senior Member Group: Members Posts: 1,999 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region |
QUOTE(BillC @ Jul 5 2025, 12:05 PM)  QUOTE(Gatornapper @ Jul 5 2025, 12:47 PM) What is "MC"? "MC" is short for Master Cylinder. Yea that flashing bulb is not just the E-brake warning light - it's also the Master Cylinder warning light. So the non-stop flashing could be from either circuits going to the bulb. You can pull one at a time and see if the light stops blinking. Alternately you could pull the wires off the MC itself. |
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Posts in this topic
Gatornapper Brain Trust Help needed on Parking Brake Light Jul 4 2025, 07:40 PM
jim_hoyland MC ?
I just went through this… :) Jul 4 2025, 08:41 PM
Jamie
MC ?
I just went through this… :)
I'm also... Jul 5 2025, 09:03 AM Superhawk996
I'm also trying to troubleshoot the flashing... Jul 5 2025, 12:25 PM Literati914 @Gatornapper - if you pull the combo gauge, you... Jul 5 2025, 10:01 AM Gatornapper Ah yes! On my schematic it does look like one... Jul 5 2025, 10:47 AM BillC
What is "MC"?
"MC" is short ... Jul 5 2025, 11:05 AM Superhawk996 Simplified schematic from Spoke Jul 5 2025, 12:23 PM |
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