Shorted 40 amp fuse, fuse diagram needed

Tiny
MD TDI
  • MEMBER
  • 2012 VOLKSWAGEN PASSAT
  • 2.0L
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 17,000 MILES
I have a 40 amp fuse in the engine compartment that keeps blowing on my car listed above TDI VIN 1VWCN7A34CC044177.

How can I obtain a fuse diagram for my vehicle?
Saturday, April 10th, 2021 AT 8:46 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

I attached information related to the fuse box under the hood. I don't know which fuse is blowing, and there are a couple that are 40 amp.

Take a look through this and let me know if it is what you needed. Also, if you can provide the production date, it may help. When I go through the manual, there are several production dates to choose from. The one listed below started in January of 2011 but was used in the 2012 model year.

If you look on the driver's door or the door frame, there should be a label that indicates when it was built.

Let me know if this helps or if you have other questions. Also, here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

Take care,

Joe

See pics below.
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Saturday, April 10th, 2021 AT 9:39 PM
Tiny
MD TDI
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Joe, thank you very much. According to the diagram it is the F16 40 amp fuze for the Amplifier R12. I will trace that down and see if it is shorted out.
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Sunday, April 11th, 2021 AT 8:30 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Let me know what you find. Also, if you find nothing wrong, let me know the production date of the vehicle. VW is great at making small changes 50 times a year. LOL

Take care,
Joe
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Monday, April 12th, 2021 AT 6:25 PM
Tiny
MD TDI
  • MEMBER
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My car was built 1/12. I was able to verify that when I disconnected the amplifier the grounded condition went away. I also was able to determine that where the F16 red/blue wire from the fuse box connects to the amplifier, that terminal coming out of the amplifier is grounded to the metal case of the amplifier. I feel pretty confident that the amp is shorted out.
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Monday, April 12th, 2021 AT 7:36 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
An easy way to check is to disconnect the power supply to the amp. If it doesn't blow, then the amp is a prime suspect. If it still blows, the problem is before the amp.

Let me know if I can help.

Joe
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Monday, April 12th, 2021 AT 8:55 PM

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