2018 Ram Promaster 3500 High Top Extended Extended
My factory trailer tow package on my 2018 Ram Promaster 3500 Extended has issues with the left turn signal/brake lights. (Brown & yellow wire). All my lights on the van work fine, I've read all the threads regarding similar issues on this forum. I unplugged the trailer control module in the driver's side rear corner panel. Checked and replaced the small 20 amp fuse on the long pigtail in battery box. Never did blow. My trailer lights are fine because I hooked it up to both of my Dodge Durango's and all lights work. I've called 2 Promaster dealers close to me in South Georgia. Both service advisors said they are clueless because they never sold a Promaster with a tow package. I ordered the van with it, plus many more upgrades. The odd thing is now when I plug the 4 prong tester in the 4 pin and also I used a 7 to 4 pin reducer to check both. All the lights work on the tester. Both blinkers and brakes. Driving lights too. So, I purchased a set of temporary magnet lights from Lowe's and plugged them in, no left blinker or left brake light. I plugged the temporary lights into the Durango's and it works as it should. The dealers told me to drive the 1-1/2 hours and I may possibly have to leave it if they have to order something. Really don't like that idea since I've did a van conversion. Don't won't a technician messing around with the complex of wiring for my solar, 110 and 12volt wiring that all converges in the garage under the bed close to the area they would be working. I know about the recall on the 2016 TCM, but my number 68229650AD appears to be the one they used for the recall. Any thoughts from my fellow Promaster owners?