So I finished installing the passive lock system and the install was easy and functionality works. The only issue I'm running into now is the truck threw up 2 CEL, one for a P0073 code, ambient air temp, I thought I cleared it with a scanner, but it came back. The other message is the Start/Stop system is disabled. My code scanner did not clear it. Any suggestions? It started after a disconnected and reconnected the battery for the passive locks changes. I also noticed that the vehicle no longer reads the outside ambient temperature or display it on the EVIC screen. Google search of the code for Ram specific, shows that the sensor is in the mirror, which mine does not have. Pretty sure it’s an alfaobd setting that I need to change. The truck is a 21 1500 Bighorn with the 3.6. I followed all the settings listed in the “Adding Passive Entry” thread. Hope someone can suggest what settings I need to check or change.
Last edited: