Troubleshooting No Connection on Prodigy P3 Randomly Occurring

Question:

New rockwood geopto trailer connected to a factory installed 7 pin on a 2017 land rover discovery randomly goes from working fine to showing no trailer connection. Clean connection, no corrosion and a plug and play connection ford f150 compatible I bought from you with the p3. Whats my issue?

asked by: Brian M

Expert Reply:

The # 90195 showing no trailer connection has to do with the power draw the 5 o'clock pin of your 7-way. This normally has to do with a poor connection on that pin, but it could also be a bad connection on the back of the trailer connector, a bad connection under your dash to the wiring harness, a trailer ground issue, or a trailer brakes ground issue. The random part of the issue makes me think there is a wiring connection problem or a short.

The first think I'd do is put dielectric grease # 11755 on the trailer connector as well as remove the connection on the back of the connector and add the dielectric grease there as well. Next, I recommend checking the connection of your brake controller under your dash to add dielectric grease and make sure they are firmly connected.

If that doesn't solve your issue, then I'd check the trailer ground to make sure it is bare metal to metal and then check the electric brakes ground at each wheel to make sure that connection is bare metal to metal.

If you have done all of this and still have an issue, let me know and we can try some more in depth/difficult troubleshooting.

expert reply by: Jason S