Postby smj999smj » Fri Nov 04, 2016 9:31 pm
Reprogramming is done when there is a software update to fix a problem, so that in itself is not an ECM problem. For example, some 2008 V6 Pathfinders had an issue with the lock-up at low speeds, so Nissan issued a TSB and an updated software program to fix the issue. Nissan ECM's, in general, don't really have many failures on the whole. Most of them are caused by water damage and corrosion, people cross jumping the battery or something shorting and causing damage to the ECM (for example, the IAC-AAC valve failures that fried so many ECM circuit boards on VQ35DE-equiped Maximas and Pathfinders).
The biggest issues with the 05-10 Pathfinders are the failing factory radiators that cause coolant contamination of the transmission fluid, resulting in a damaged automatic transmission, badly stamped upper timing chains that cut through the tensioner faces and cause a whining noise and bad fuel sending units.