| Brake Switch Repair [message #283066] |
Fri, 24 July 2015 20:48  |
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thainglo
Messages: 132
Registered: March 2015
Location: Iowa
Karma:
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Senior Member |
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I'm troubleshooting my oem cruise control, failed at e first step with no power off of brake switch. Without thinking about it, I ordered a replacement (AC Delco D850a, not listed in parts interchange but it looks to fit). When it showed up, I pulled the original part and saw it could be disassembled. Figuring I had nothing to lose, popped the tabs and investigated.
Turned out to be just enough corrosion on the contact points to prevent a good connection. A few invites with a wire brush and needle file worked wonders. As good as new!
Took a few tries wi the multimeter to confirm I had the switch positioned again correctly in relation to the brake lever. Probably last another 40 years now and I get to return the AC Delco part.
Pics of of the disassembled part here:
http://www.gmcmhphotos.com/photos/brake-switch-repair/p58565-image288.html
Matt Sladek
1976 Eleganza II
Coralville, IA
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