 Parking brake warning light switch |
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| jeremiah98125 |
 Mar 1 2010, 01:41 PM
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jr  Group: Members Posts: 37 Joined: 11-November 09 From: seattle, wa Member No.: 11,031 Region Association: Pacific Northwest  |
I've been trying to fix my brake warning light switch, it flashes all the time. Occasionally I could get it to go out by slamming the P-brake all the way down, but it would eventually turn back on again. So I figured it was the switch under the P-brake handle. I pulled the switch out and it doesn't seem to do anything, but it looks fine to me?? The wire that leads to it looks okay too.. Is there a way to test the switch?
I was thinking it could be the m/c reset button, but doesn't make sense if I could get it to turn off with the P-brake before.. |
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| tradisrad |
Mar 1 2010, 03:19 PM
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Senior Member Group: Members Posts: 985 Joined: 11-September 06 From: San Mateo, CA Member No.: 6,815 Region Association: Northern California |
On the later model hand brake there is a return spring that connects from a tab on the cable to the fire wall. This spring should keep the hand brake "down" and puts pressure on the switch keepin the light off.
On my '70 there is no return spring and I found that tightening the cables I was able to keep my light off. Becareful to avoid over tightening. I think the light goes on when grounded. |
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| SirAndy |
Mar 1 2010, 03:26 PM
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Resident German Group: Admin Posts: 41,707 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(tradisrad @ Mar 1 2010, 01:19 PM)  I think the light goes on when grounded. You're correct, i got that mixed up. When connecting the wire to ground, the light should come on. The switch keeps the connection open when the handle is down and closes the circuit when the handle is up. (IMG:style_emoticons/default/shades.gif) Andy |
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Posts in this topic
jeremiah98125 Parking brake warning light switch Mar 1 2010, 01:41 PM
zonedoubt Make sure the switch is grounding to the chassis. ... Mar 1 2010, 02:02 PM SirAndy Take the wire off the switch and connect it to gro... Mar 1 2010, 02:13 PM zymurgist This is relevant to my interests. :cat:
Babydoll... Mar 1 2010, 02:22 PM
jeremiah98125
This is relevant to my interests. :cat:
Babydol... Mar 1 2010, 02:27 PM jeremiah98125 I pulled out the multimeter and checked continuity... Mar 1 2010, 03:40 PM tradisrad The wire probably meets up with the wire harness i... Mar 1 2010, 04:44 PM |
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