mrgerke81
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- Raleigh, NC
I noticed yesterday my brake lights not working correctly. I checked bulbs and they are ok. I noticed that if you hold down brake pedal for about 2-3 minutes they sometimes will come on either full strength or dim then go full strength. I checked wires that go to master cylinder. When you put a volt meter on the ends of wires after disconnecting I get 24 volts. I checked continuity of switch on master cylinder and it is open until brake pedal is pushed then it closes giving 0 resistence. Is there another switch or contact somewhere else to check? I was wondering where the two wires that come off of master cylinder go to. Is there some sort of relay or something. I didnt understand why you have a 24 volt power wire then a ground. What does the switch do in the master cylinder, just ground it out or what?
Thanks
Thanks