How to Install Trailer Wiring Harness so that It is Only Active When Vehicle is Running

Question:

I dont want this powered all the time.........I only want it powered when the engine is running...........any suggestions on how to accomplish that the best way? My 2012 Jeep Liberty doesnt seem to have any available accessory connections at the fuse box.

asked by: David

Expert Reply:

To install the part # 118554 on your vehicle and have it only be active when the vehicle is on will require an isolation solenoid # PK5231201 on the power wire that runs to the battery. The center pin on the solenoid would get run to a circuit that only sees voltage when the vehicle is running like the radio or ignition circuit. When installed this way the solenoid will only complete the circuit for the trailer wiring when the vehicle is running.

One side of the solenoid would run to the positive terminal of your battery and the other side would connect to the power wire of the # 118554.

expert reply by: Jameson C