Troubleshooting Trailer Brakes Blowing Fuse When Truck Brakes Are Applied
Question:
I have an enclosed car hauler and starting this year it has been blowing the in-line fuse in the brake controller on my truck. The trailer has 4 wheel brakes and Ive been usjng the same truck for several years without a problem until now. Ive used the same truck with a buddies trailer and had no issues. How would I go about testing to see which of the trailer wheels is having the braking issue causing the short?
asked by: John
Expert Reply:
Since you know there is a short in the braking system itself, I recommend starting with testing your trailer magnets. I've attached an article to help you with this.
If the magnets check out then you know you have a short in the wiring. I recommend testing the wires with an incandescent circuit tester like # PTW2993 and probing the wire until you find the issue. Replace wire as needed with # 10-1-1.
Products Referenced in This Question
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Trailer Hitch
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class V XD - 2"
- Q&A: Wiring Diagram for Trailer Breakaway Kit
- Shop: TruRyde Electric Trailer Brakes - Self-Adjusting - 12" - Left/Right Hand Assemblies - 7K
- Shop: Buyers Products Vise Mount for Utility Truck Bumpers
- Shop: Front Mount Hitch
- Shop: Voyager WiSight 2.0 Wireless RV Backup Camera System w/ Night Vision - Rear Mount - 7" Screen
- Shop: RV Camera
- Article: Testing Trailer Brake Magnets for Proper Function
- Shop: Trailer Brake Magnet For Dexter 12-1/4 Brake Assembly, White Wire
- Shop: Replacement Magnet Retaining Clips for 10" and 12" Electric Trailer Brakes - Qty 10
- Shop: Grease Seal - Double Lip - 2.250" ID - 3.376" OD - GS-2250DL
- Search Results: 010~036~00
- Search Results: 023~106
- Q&A: Trailer Brakes Will Not Activate When Pushing The Brake Pedal
- Q&A: How To Test Factory Brake Controller Function on 2019 Ford F-150
- Q&A: What Ohms Should Trailer Brake Magnets Be?
- Video: Review of ASA Electronics RV Camera System - Backup Camera - ASA57YR
- Q&A: Backup Camera & Monitor For Trailer Pre-Wired With Voyager WiSight Plate
- Article: Trailer Wiring Diagrams
- Video: Trailer Brake Controller Wire Testing
- Shop: Brake Controller
- Q&A: How do I Tell if the Brake Controller is Bad
- Q&A: Troubleshooting Prodigy P3 Brake Controller Install Where Truck Fuse Keeps Blowing
- Search Results: brake controller
- Search Results: tekonsha
- Video: etrailer Electric Trailer Brake Magnet Kit Replacement Review
- Search Results: electric over hydraulic kit
- Search Results: tekonsha 3020 p
- Search Results: titan brakerite
on Wiring
