blowing instr. cluster fuse, 2007 f-450

Printed From: the12volt.com
Forum Name: Cellular and Communications
Forum Discription: Cell Phones, Hands Free Kits, Bluetooth, Two Way Radios, CBs, Pagers, Wireless Internet, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=92559
Printed Date: June 29, 2025 at 11:43 PM

Topic: blowing instr. cluster fuse, 2007 f-450

Posted By: comstal
Subject: blowing instr. cluster fuse, 2007 f-450
Date Posted: April 05, 2007 at 7:21 AM

After installing a 2 way radio in a 2007 F-450, the instrument cluster fuse keeps blowing. There is nothing tapped into this fuse and after tracing all wires, everything looks ok. Any ideas on why this fuse keeps blowing?

Replies:

Posted By: mastermarine
Date Posted: April 11, 2007 at 12:46 PM

Maybe someone has the taillight wiring for the trailer hooked up to the dash light fuse and is hauling a trailer with a short in that circuit.

MasterMarine

Posted By: KPierson
Date Posted: April 12, 2007 at 11:00 AM

Where and how did you ground the radio? I've seen people run self tapping grounding screws through wires/relays/etc. Also, when does the fuse blow? As soon as you turn the parking lights on or a few mintues after, or just randomly?

What else is on the cluster fuse? Often times, as mentioned above, the tail lights share the circuit, so there may be more to investigate.

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Kevin Pierson

Posted By: comstal
Date Posted: April 12, 2007 at 1:25 PM

After a few hours I finally found the problem. The dome light had been put back in improperly. One of the screws was in the wrong hole where it was grounding out the circuit for the light, which is part of the instrument cluster.

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