Chrysler Repair: 96 Dodge Avenger: Trans. drives in 2nd only, obd ii codes, dodge avenger

Question
my avenger is stuck in 2nd gear they said it was the transmission control mod i was wondering if i can use an old on and have it flashed please help

Answer
Hi Michael,
The 96 model year was when OBD-II codes were adopted. So if you get a used mod from a wreck it has to be from that model year or maybe from '97; I wouldn't go too far astray from that. I would suggest that you check at a dealer's parts department to see if the part number of the module for your car is the same as the part number of the mod you are considering buying from a wreck. If they are, then just buy the used one and have if reprogrammed. Otherwise, I wouldn't buy a used one.
But I am not clear who told you it was the trans control module. Did they do a code readout and if so what was the code number? The 'drive in 2nd gear only' is actually a strategy that is built-in to the system such that when there is a malfunction in the trans that may cause futher damage it protects itself by changing into this 'limp-in mode' which is self-protective. It is possible that the module is indeed bad, but there are many other possible reasons for your trans to be in this limp-in mode. So if you don't have the actual number, it would be wise to get a readout to find out what it is. An Autozone Parts store will ofter do that for free or get it done at an independent shop for around $40 as a "special". Dealers charge around $80. If you get the number ask the name, what it means, and what the cost of repair will be. Then let me know if you would like me to verify that.
Roland