When is EPROM Replacement and/or Programming Necessary?: Notes

The program and or data of an engine or transmission control module only needs to be updated or replaced if:

• The control module is replaced with a non programmed/basic module.
• A Service Action, Recall or customer concerns have resulted in the release of a new/updated program or revised operational data.

The programming procedure of the diagnostic equipment will identify if:

• a DME EPROM needs to be replaced or can be updated
• a control module (DME or Transmission) can still be programmed or needs to be replaced if the reprogramming limit of 13 times has been reached