Help Needed Idm ???

[twt]

How do you tell if the IDM is good or bad?? I have mine out & this truck has ben missing irradically
Thanks T.T.

 

[BJS]

I don't know of a bench test you can do, the diagnosis I've read is to replace with a known good one. Sadly the tech's (parts swappers) at the dealers if suspected will swap it out as their diagnosis,

 

[twt]

I took it out of the case, saw nothing wrong with the board,sealed it back up & put it pack in the truck. Still have the same small miss.