Exor Posted October 12, 2011 Report Share Posted October 12, 2011 1976 D. 620. runs fine never really had a problem until today. So if the truck isnt on and the key is out(in the off positon) the brake lights are still on, If i pull the fuse it stops. i got down and checked the button (switch) thats connected to the brake pedal, and its NOT stuck. a little dirty but not stuck. I also dont know shit about wiring unless its speakers. and now its to dark to really search through wires, so while I wait for the sun anyone got an idea? much thanks Quote Link to comment
bilzbobaggins Posted October 12, 2011 Report Share Posted October 12, 2011 Switch could be bad or have water in it. If you hit the switch or mess with it, will they turn off? Dunno. Hope this helps. Jeff Quote Link to comment
rpowell25 Posted October 12, 2011 Report Share Posted October 12, 2011 Switch is most likely broken inside. Replace it. Brake lights are designed to work regardless of the ignition key position. Quote Link to comment
Exor Posted October 12, 2011 Author Report Share Posted October 12, 2011 they still are on even when you mess with it. i dont know if you can open the switch to check for water. Quote Link to comment
NOTES... Posted October 12, 2011 Report Share Posted October 12, 2011 they still are on even when you mess with it. i dont know if you can open the switch to check for water. Disconnect it.. if they turn off then replace the switch... that should be it really... Quote Link to comment
datzenmike Posted October 12, 2011 Report Share Posted October 12, 2011 Push the peddle down and get your finger in there and push up on the switch button. If they go out, then it needs adjusting or the little bumper fell off it that pushes the button. Quote Link to comment
Exor Posted October 12, 2011 Author Report Share Posted October 12, 2011 you guys were right. it turned off when I disconnected it. thx Quote Link to comment
mklotz70 Posted October 12, 2011 Report Share Posted October 12, 2011 You might check with your parts store.....I was able to buy one from Knecht's a couple of years ago. Quote Link to comment
Exor Posted October 12, 2011 Author Report Share Posted October 12, 2011 I went to autozone today and picked a brake light switch up for 7 bucks and slapped it on. and sure enough they are still ON. wtf? so its not the switch. Quote Link to comment
NOTES... Posted October 12, 2011 Report Share Posted October 12, 2011 Check the wire that goes from the plug towards where it begins.. there must be a short sumwhere in there thats making it make contact with the other wire, or its grounding out.. its an interruptor switch so something is connecting them.. Quote Link to comment
mklotz70 Posted October 12, 2011 Report Share Posted October 12, 2011 just to be clear here....that is a normally closed switch......which means that if the plunger is NOT pushed, it will pass current. The plunger has to be pushed in to break the circuit. If the lights went out when the switch was disconnected, then it pretty much has to be the switch.....or as stated early, it's not be pushed in when the brake pedal is in it's "at rest" position. Maybe we're missing something in the description? Quote Link to comment
banzai510(hainz) Posted October 12, 2011 Report Share Posted October 12, 2011 make this EZer will reaaly harder to soem people. which was EZ to begin with. take both switches. Ohm them out with switch plunger out the switch should be SHORT. Light come on. With switch plunger IN should be OPEN On the pedal there is a plate that the switch pluger supposed to hit(at least my 521 had one). The plat fell off thus the plunger would never get engaged. I JB welded a PENNY on there and all is good you could have got a switch that was reversed but Im only guessing Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.