Quote:
Originally Posted by huck25
Thought so just wanted to make sure as it was a direct line to the ECM instead of through the truck.
|
With the smarty it needs to see the ecm power on/off/on to start or end the flash. That is on a different pin in the obd2 port. Other software does not require this so we know that it's a smarty thing. It has nothing to do with corrosion because every truck requires it. Corrosion usually causes problems like an aborted flash or make it impossible to flash because communication with the ecm is lost or interrupted.
Not to say anyone is right or wrong. My personal experience has only seen this particular problem in 04.5 3500 series trucks and all of them were not able to load a Smarty or communicate with a DRB3 for ecm reflash function, however diagnostics worked fine.