Stalling Dodge Avenger
Vehicle came in with stalling problem. Customer had already replaced throttle body trying to fix the problem with no improvement. I attempted a throttle relearn with the scan tool and still no improvement. Upon further inspection I noticed that the main relay was not being commanded on by the pcm. All wiring to the relay checked out good, performed a pin out on the pcm and all power and grounds are good, just no signal for the main relay coming out of the pcm with key on . Just wondering what a next step would be before condemning the pcm.
The PCM may need to see a crank signal to close the relay...most Dodges of that vintage do. Try to actuate the relay with a scan tool KOEO.
I looked at the wiring diagram, and it says Main/ASD Relay. The ASD Relay on Chrysler stuff traditionally came on for a second or two and then not again until the PCM received cranking inputs. Unless you were checking it while cranking you may be headed down a rabbit hole.