Stop blowing fuses to find a short
Thread Starter
Old Fart
Joined: May 2004
Posts: 26,173
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From: kelowna, bc, canada
Stop blowing fuses to find a short
I see many people blowing fuses looking for shorts, disconnect something and install another fuse, when it blows disconnect something else and install another fuse.
Not only is that hard on the cars wiring but it is not cost effective and a PITA.
Build your own telltale...
Pick up a 12HD or HD12 flasher at your local auto parts store,, connect about 6" of lead to each of the two terminals, solder the other ends to the test tips of a blown fuse, plug the fuse into the fuse terminal so the L terminal of the 12HD flasher is on the load side of fuse and the X terminal is on the hot side of fuse terminal.
If there is a short the flasher will "click" rapidly and nothing on the circuit will work, once the short has been found and repaired the flasher will "click" much slower, [about the same as signal lights] and anything on the circuit will work, although they will work along with the "clicks of the flasher, on, off, on, off. 94
Not only is that hard on the cars wiring but it is not cost effective and a PITA.
Build your own telltale...
Pick up a 12HD or HD12 flasher at your local auto parts store,, connect about 6" of lead to each of the two terminals, solder the other ends to the test tips of a blown fuse, plug the fuse into the fuse terminal so the L terminal of the 12HD flasher is on the load side of fuse and the X terminal is on the hot side of fuse terminal.
If there is a short the flasher will "click" rapidly and nothing on the circuit will work, once the short has been found and repaired the flasher will "click" much slower, [about the same as signal lights] and anything on the circuit will work, although they will work along with the "clicks of the flasher, on, off, on, off. 94
Last edited by fcm; Feb 26, 2011 at 02:56 PM. Reason: typo
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