Multimeter Recommendation for Testing Voltage Drop of Brake Controller Install
Question:
I have tested the wires at the brake controller to make sure the black is hot, the red is hot when I push the brakes and the blue is giving off a signal with the manual override, however when testing the 7 round on the back end of the RV and adjusting the level of the brakes through the controller. I am not seeing a difference in the light. On my Ram when I do this the light will gradually illuminate as I increase the pressure. Think you can help? It is a prodigy p2
asked by: Philip
Expert Reply:
You're going to want to use a multimeter like the # PT89ZR which will show exactly what the voltage is on the brake output pin of the 7-way. Otherwise without knowing what the voltage is exactly it's hard to speculate why there would be an unknown potential voltage drop.
Measure the voltage near the controller like you did and on the output pin and let me know what's going on. Keep in mind that this is proportional controller so the only way you'll see full voltage on that pin is with the override lever.
Product Page this Question was Asked From
Digital Multimeter with 42" Long Test Leads - LED Display
- Electrical Tools
- Testers
- Multimeter
- Yellow
- Performance Tool
more information >
Featured Help Information
Instructions
Continue Researching
- Search Results: brake tester
- Search Results: trailer brake tester
- Search Results: tongue weight scale
- Article: Brake Controller Installation: Starting from Scratch
- Q&A: Electric Trailer Brakes not Working
- Q&A: Testing Brake Magnets on Trailer
- Shop: Dexter Electric Trailer Brake Assembly - 10" - Left Hand - 3,500 lbs
- Shop: Pollak 7-Way to RV Socket LED Circuit Tester - Vehicle End
- Shop: Dexter Electric Trailer Brake Assembly - 10" - Right Hand - 3,500 lbs
- Shop: Digital Multimeter with 42" Long Test Leads - LED Display
- Shop: Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Left Hand - 3,500 lbs
- Search Results: tst~507~ft~6~c
- Shop: TST TPMS for RVs - Color Display - Signal Booster - 6 Flow Through Tire Sensors
- Search Results: trailer brakes
- Article: Trailer Wiring Diagrams
- Q&A: Replacement Drum Brake Actuator for a 1995 4 Winns Model 3916 Trailer
- Shop: Trailer Hitch
- Shop: etrailer Electric Trailer Brakes - Self-Adjusting - 10" - Left/Right Hand Assemblies - 3.5K
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: etrailer Electric Trailer Brake Kit Installation
- Shop: Trailer Wiring
- Search Results: trailer brake controller
- Q&A: How to Measure to Determine the Size Trailer Brakes Needed For Hydraulic Drum Replacement
- Search Results: brake controller
- Shop: Brake Controller
- Video: Dexter Electric Trailer Brake Kit Installation 23-26
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Shop: Suspension Enhancement
- Article: Most Popular Wheel Bearings