ECM reprogram Is it possible to reprogram a previously programmed ECM for another 2003 Tib? If so any instructions?

no, call a mobile locks smith. some have equipment to reprogram

try using a scanner to reprogram the CPU program in the ECM. When batteries go flat or are disconnected there is a possibility of corrupting the program

Refer to You Tube ?

hi not on changing the mechanical part the ecm and transponders already match as long as u dont have to change ecm no program is required ex if u have a four cyl and u installed a 6 cyl u need new ecm that wont match including the wiring and ecm that would have to be programed to match bcm body computer module danny

battery cable ends. these vans were famous for it. if you have factory soldered ends you might want to consider changing them

the mas rev is programed in the ecm and is not adjustable without the proper program, the ecm also control the idle speed. help???

If you key has a chip in it, you will probably have to get your ECM reprogrammed with the proper VIN, since it no longer matches the original VIN on your Vehicle. I don't think the dealer would program your keys to a mismatched VIN number, so more than likely you will need your ECM reprogrammed with the proper VIN. This will need to be taken to the Dodge Dealership to be fixed.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

OK, if the vehicle won't start and the service immobilizer light is on then I would definitely take it to the dealer in order to have the key programmed to the computer, again.

Did the battery go dead lately? Is there a code associated with it not starting, as in the immobilizer function lamp?

or the key is not programmed to the ecm?

P0633 Immobilizer Key Not Programmed ECM/PCM
This is just a possibility to look into.

How hard is to replace the thermostat?its a 2003 tib

IF YOU ARE TALKING ABOUT THE REMOTE FOR THE DOOR LOCKS ETC, IT COULD BE A DEAD BATTERY IN THE REMOTE,OR IF IT HAS NOT WORKED SINCE YOU HAD IT & OR HAS A GOOD BATTERY, IT COULD BE THE CHIP IN THE REMOTE HAS GONE BAD,OR WAS NEVER PROGRAMED TO THAT CAR,BUT IF YOU ARE SAYING THE KEY WILL NOT CRANK THE CAR IT HAS PROLLY LOST IT'S PROGRAM FOR THE SECURITY SYSTEM IN THE CARS ECM,IN THAT CASE YOU WILL HAVE TO EITHER TRY TO HAVE A PROFESSIONAL REPROGRAM THAT KEY& USUALLY IT WILL NOT TAKE IT, & YOU WILL NEED A NEW KEY MADE & PROGRAMED TO THE CAR, AND ANOTHER POSSIBLE IS THAT SOMEBODY TRIED TO UNLOCK THE CAR WITH A SLIM JIM,ETC, AND DEAD LOCKED THE CAR IN THAT CASE THE DEALER HAS TO REPROGRAM THE CARS SECURITY SYSTEM,& ECM.