customer service | view cart 
Question Was Asked By - Rocky
Trailer Tail Lights Come On when Brakes are Not Used
Question:
The tail lights on my trailer are on even though the brakes on my vehicle are not activated. They used to work just fine 2 years ago. Im using the flat 4pin connector. I have the trailer connected to a 2004 Ford Aerostar. The driver side tail light in the Ford is burned out. Could this problem be related?
asked by: Rocky
Expert Reply:
The problems might be related. I'd first replace that burned out bulb, and if the problem isn't fixed, use a circuit tester and check each pin on your connector while that function is activated. (For example, pin for yellow wire-left turn signal, pin for green wire-right turn signal, pin for brown wire-running lights.) You might also use that tester and check your converter to make sure it's working as it should. Make sure there is signal going in one side of the box, and out the other.
expert reply by: Mike
Product Page this Question was Asked From
Have a question for the experts, click here.
Questions about part number 40376
Finding the Stop Light Switch on a 1995 Chevy PickupBrake Controller Wiring on a 1995 Chevy 2500
4-Way and 7-Way Trailer Connector Not Working Properly
Brake Controller Showing "nc" Error Code on a 2004 Dodge Ram
Brake Controller Showing "OC" Error Code
Wiring a 2001 Hyundai Elantra
Running and Tail Lights Not Working on a Trailer
Brake Controller Wiring on a 2007 GMC Sierra
Red Wire Coming Out of a Brake Controller
Brake Controller Showing "S.H." Error Code
7-Way Connector on a 1995 Ford Explorer
Emergency Lights Not Working Properly
Left Side Trailer Lights Not Working
Brake Controller Wiring on a 1994 GMC Safari
Wiring a 2004 Renault Laguna Sport Tourer
Brake Controller Stopped Working
Brake Controller Only Working when Using the Slide
Brake Controller Wiring on a 2007 Chevy Silverado
Trailer Light Comes On when All Other Lights are Off
Trailer Tail Lights Come On when Brakes are Not Used
Trailer Lights Go Out when Headlights are Turned On
Brake Controller Causing Trailer Brakes to Sometimes Lock up
Running Lights Do Not Work on My 2008 Chevy Equinox
Vehicle Brake Lights Stay on When Vehicle is Off?
2003 GMC Sierra Running Lights Not Working
Related Questions
What is the Length of the Bulldog Plunger Pin Assembly, # BD500103Recommendation of Safe and Economical Parts for Towing a 1990 VW Vanagon Behind an RV
Compatability fo the Softride Bike Rack Extender Bar with the Yakima Double Down 2 Bike Rack
Dimensions of the Removable Steel Foot with Pin for A-Frame Trailer Jacks
Compatibility of the Atwood Jack Castor with a 2 Inch Outer Diameter Ram
Compatability of Reese Remote Control and Actuator for Kwik Slide Part # 300749 and Draw-Tite 15K
Mounting Hole Size for Replacment Shock Absorber Part # 1844-2
Replacement Parts for the SportRack Spare Tire Mount Bike Rack
Replacement Wheel Tray for a Sportworks Bike 4 Bike Rack
Is the Roll Pin Included with the Replacement Trunnion, Item # 58097
How Does Optronics Fender Bracket part # A67CVB Ground Electrically
Weight Distribution Spring Bars Upgrade for the Reese Heavy Duty Round Bar System
Will the Reese Weight Distributing Spring Bars Work with a EAZ Lift Weight Distribution Head
What Would Cause the Cam Arm on a Dual Cam Sway Control to Break?
Load Bars for 2009 or 2010 Subaru Forester with Factory Raised Rails
Replacement Spring Bar Retainer Package for an Older Draw-Tite Weight Distribution System
Roof Mount Rack for 1980 Dodge Ramcharger
How Does the 4-Way Mounting Bracket Keep the Connector from Falling Out
Availability of Rail Kit for the Draw-Tite # 6500 Cargo Carrier
Is it Safe to Use Modified Weight Distribution Shank
Availability of Actuator for Reese Remote Control and Actuator for Kwik Slide Fifth Wheel # 30079
Placement of Washers on the Draw-Tite Round Bar Bolt Together Head # 3279
Replacement Trunnion Ends for Spring Bars
Will the Thule Fat Mouth - Rooftop Ski Rack Adapter Fit the Factory Cross Bars on A 2005 Volvo XC90
Dimensions of Optronics Lens Part # AL8RB
