Memory Fuse keeps blowing as soon as contact is made.

Tiny
TESLONELF
  • MEMBER
  • 1997 DODGE CARAVAN
  • 212,000 MILES
I recently bought this van. Nothing worked while the car was off or in ACC position. When in the ON position most everything worked. I still did not have a radio though. I took it to the dealership to take care of a couple of things covered by recall, (whaddyaknow the horn, cruise control, and airbag worked again). Then I replaced the Body Control Module, and found that the Memory Fuse was bad and replaced it as well. When I connected the battery and turned the car to ACC, the radio worked, I had odometer readings, and it was working the way it was supposed to. I started driving down the road and then the radio went out. I pulled over and sure enough, the memory fuse was blown. I put in another (car was off, but the battery was connected) and it blew before I could get it fully seated. What could be causing the overload for the memory and how can I fix it? I would be fine with the ACC position not working, but I'd like to have my radio.
Thursday, February 2nd, 2012 AT 2:07 AM

11 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Could be a bad radio? Or someone messed with wiring put back stock radio? Pull and check wires?
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Thursday, February 2nd, 2012 AT 2:15 AM
Tiny
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No, the radio worked fine in my old car. And i've quadruple checked the wiring. My friend is a professional radio installer, and he said it was good too.
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Thursday, February 2nd, 2012 AT 2:22 AM
Tiny
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Whats the fuse #?
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Thursday, February 2nd, 2012 AT 2:25 AM
Tiny
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Have you tried disconnecting radio and see if it still blows?
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Thursday, February 2nd, 2012 AT 2:26 AM
Tiny
TESLONELF
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  • 6 POSTS
I can't find a number for the fuse unless you mean the amp rating of 10A. Other than that I can olnly tell you what's on the fuse cover. It says 10 A MEMORY (IOD). And i'll try disconnecting the radio to see what happens.
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Thursday, February 2nd, 2012 AT 2:29 AM
Tiny
TESLONELF
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Ok, I took out the radio and it's fine now. What would cause the radio to blow the fuse even when neither the van nor the radio is on?
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Thursday, February 2nd, 2012 AT 2:34 AM
Tiny
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Maybe chassis is shorting against a hot wire in the dash? Or mounting is torquing guts to make a internal short?
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Thursday, February 2nd, 2012 AT 3:11 AM
Tiny
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You got regular or premium sound system?
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Thursday, February 2nd, 2012 AT 3:11 AM
Tiny
TESLONELF
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  • 6 POSTS
Regular. Just found the problem though. The grounding braid was dhorting against the reg ignition power about 6inches back behind the brackets.
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Thursday, February 2nd, 2012 AT 3:15 AM
Tiny
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Your welcome.
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Thursday, February 2nd, 2012 AT 2:58 PM
Tiny
TESLONELF
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Regular, I think. It had the 2 back speakers and the 2 front speakers on the dash. I installed my own speakers in back, and I'm gonna put 2 more speakers in front doors when I get some extra wire.
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Thursday, February 2nd, 2012 AT 10:48 PM

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