trouble shoot electrical

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  #1  
Old 09-06-09, 06:53 PM
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trouble shoot electrical

I have a 2003 caravan that the left side parking lamps are blowing the fuse.
How do I trouble shoot this?
Should I not be able to use a meter to find the short?

Another thing not related I think, the ignition fuse had also blown. I removed the immobilizer and then the fuse would stay
working. It was after this that I tried replacing the fuse for the parking lamps and it would blow when the lights were turned on.

Thanks
 
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Old 09-06-09, 07:08 PM
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i use a small breaker that I have added jumpers that can be plugged into the fuse locations, then start unplugging connectors to the circuit that is giving you problems. then the breaker stops tripping start examining that section of wires for the problem, usually either a worn spot in the insulation or a pinched spot in the wire.

Murphy was an optimist
 
  #3  
Old 09-06-09, 07:27 PM
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I understand your idea.
But what type of breaker would I use for a 15amp DC fuse?
 
  #4  
Old 09-07-09, 08:46 AM
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For automotive work something like this will work well. ETA|1610-21-15A|CIRCUIT BREAKER, 15A, AUTO | Newark.com

There are many small circuit breakers available. This type will preclude the need for adding any wires.
 
  #5  
Old 09-07-09, 06:48 PM
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bulb instead of fuse

From another forum one suggestion was to use a bulb in place of the fuse.
When a short is on the system the bulb would burn bright, normal.
When there is no short the bulb would burn dim.
The resistance in the bulb would protect the system, while looking for the short.
Does this sound feasible.
Thanks
 
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