Troubleshooting A Demco Delta Force Supplemental Braking System That Wont Activate
Updated 12/02/2021 | Published 12/01/2021
Question:
Hello, Ive installed the Demco Delta Force braking system in my 2015 Jeep Cherokee Trailhawk. The Delta Force actuator extends when initializing and when using the manual button, however it does not extend when pushing the coach brakes or when the break-away plungers is removed from the break-away switch. I know the tow-wire is working properly because the Jeeps brake and turn-signal lights turn on with the coachs. However, for some reason the harness wire for the Delta Force does not seem to be reading correctly from both the tow-wire and the break-away wire. Ive checked the Delta force harness wire and cannot locate any issues with it. Any thoughts on why its not working properly? Also, the Delta Force only turns on when the Jeep is turned on. Is this correct? It just seems odd that the Jeep would need to be turned on in order for the system to work while towing. Thanks.
asked by: Tim G
Expert Reply:
Since the Delta Force SM99242 is not receiving power from the factory 12v outlet when your Jeep is off you'll need to install a 12 Volt Outlet Kit, 20 amps # RM-9332 that will run directly to the battery to power the unit. This is most likely the cause of the breakaway switch not activating when the plunger is pulled as well. Once you have power running to the system try pulling your breakaway plunger again. If it does not activate the braking system then you'll want to retrace your wiring and ensure that the blue wire is properly attached to the black wire from the Delta Force wiring harness and the orange/black wire is properly attached to the positive post of your vehicle's battery.
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