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Help. What is this random fuse

3K views 14 replies 4 participants last post by  2629thompson 
#1 ·
Hello everyone was just looking around the engine bay on my 06 commander 3.7. And I seen a random fuse holder connected from the positive to negative battery cable and runs back behind the motor. There is no fuse is in. It reads PA66 FUSE. Can anyone help me out here and tell me what it is. I'm having no issues just don't know what it is or for
Thanks!

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#2 ·
I did a search of the Service manual for PA66 and didn't find anything. Might be an aftermarket thing.
 
#4 ·
Can you post a pic of it?
 
#10 · (Edited)
A random educated guess would be it's the fuse for your trailer light wiring harness.

If it is, your trailer lights won't work until you put a fuse in it - a lot of people remove the fuse when they are not actually towing a trailer.

You do have a trailer hitch correct?

If so, that's most likely what it is.
 
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