Dodge Repair: 02 Durango: no starter motor

Question
I replaced com(ordered programmed to vin) car started ran 30 minutes,drove 15 miles no problem...got home turned off and now it doesn't turn over start etc...lights and radio work...any ideas what's going on?

Answer
Hi Jason,
Let's treat it like an ordinary no starter motor problem. So check whether when a helper tries the start does the starter motor relay click softly or not, and if it does do you get a louder click from the solenoid switch on the starter motor? It could be a weak battery if that is so. Or the P/N safety switch. But also, use the ignition switch: "on-off-on-off-on and leave on" doing that in 5 seconds or less elapsed time. Then watch the odometer window to see the mileage reading replaced by a 4-digit number preceded by a P. Let me know what you find.