Radio fuse shorts out

Tiny
RON MATASON
  • MEMBER
  • 2016 TOYOTA 4RUNNER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 45,000 MILES
Radio worked then stopped. No audio. All other functions seem to work. Replaced 30 A fuse and it immediately blew. Toyota wants $400.00 to diagnose the problem and find the short. Are there any common issues with these amps shorting out?
Friday, December 20th, 2019 AT 7:09 PM

4 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

The only Technical Service Bulletin [TSB] that I could find on the stereo unit is in the diagrams down below. I have also included a wiring diagram for the stereo/amplifier for your vehicle along with guides on how to find shorts to grounds in an automotive electrical circuit. You will need to use a Digital Multi-meter [DMM], so here is a link to a guide below explaining how to use one, if needed:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Saturday, December 21st, 2019 AT 1:23 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,601 POSTS
I do not see a 30 amp fuse in the radio system which number fuse is it and where is it located?
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Saturday, December 21st, 2019 AT 6:33 PM
Tiny
RON MATASON
  • MEMBER
  • 1 POST
Thanks. I'll review the information you sent.
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Monday, December 30th, 2019 AT 3:35 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,601 POSTS
Any luck on this?
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Monday, December 30th, 2019 AT 3:35 PM

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