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Dodge Repair/2004 dodge ram 1500 quad hemi: fuse 36

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Question
QUESTION: Hi,  I am instanly blowing fuse 36 HVAC controls as soon a I install it.  I had been blowing out in the past but I would get more time.  There must be a short but would need a starting point.  Any thoughts would be appreciated!

ANSWER: Hi Dave,
That fuse is powering: heated mirror relay actuation coil, adjustable pedal switch, vistronic fan module, and the HVAC control panel (pin 1 of 16 pin plug) all via a gray/pink wire. You could try removing plugs on all those and then reconnecting them one at a time to see which one blows the fuse, or you could measure the resistance to ground from the cold side of the fuse socket and then remove them one at a time and see which one causes the resistance to rise up to at least 2 ohms which means the fuse won't blow if that one is disconnected. Then service that unit to find a short internally.
Please 'rate' my answer (see below).
Thanks,
Roland

---------- FOLLOW-UP ----------

QUESTION: Hi Roland

I finally got to fixing the issue.  I chased out all of the components attached with the grey/pink wire and ended up finding a broken wire under the dash!  The wire was from an unused accesary plug hanging there itwas hitting the frame causing a short.  Suspecting the autostart installer some time ago

Thanks so much.

Answer
Hi Dave,
Terrific sleuthing! Thanks for letting me know of your success. If you would be so kind as to do a thank/rate the expert I would be very pleased. Consider answering 'yes' to the question about a nomination of me to be 'volunteer of the month'.
Thanks,
Roland

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Roland Finston

Expertise

Get a Free Fast answer to your repair question about a Chrysler/Dodge/Plymouth car, minivan, SUV, or truck. Problems with electronically controlled engines and transmissions as well as body wiring problems are my specialty. This free troubleshoot advice forum helps you diagnose faults, minimize repair costs or do-it-yourself.

I answer questions seven days a week and respond to you in about 30 minutes. "Maxed Out" means I am answering another question or asleep overnight so try again later.

I have do-it-yourself experience (50+ years) and a library of 100 1982-2012 Chrysler factory shop manuals and 20 multi-manual Chrysler Corp. CD's.

I was voted "Top expert" from 2010-2015 here at AllExperts, and have answered 20,000+ questions.

Experience

Five decades as a 'do-it-yourselfer' on domestic and imported cars

Organizations
Yahoo Autos Group called The Chrysler Lebaron Club (co-moderator)

Education/Credentials
Degrees in Physics/bruised knuckles.

Awards and Honors
"Top expert" of 2010, 2011, 2012, 2013, 2014, and 2015 here at Allexperts. Quickest "average response time" at Allexperts (currently no. 1).

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