Hello,
This sounds likes like the TIPM is going out which is common but to be sure lets run the doces to confirm the issue here is a guide to get started.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
If a code for the TIPM codes up here are diagrams and instructions to help you change it out. This is a plug and play part it does not need programming because it self initializes.
Check out the diagrams (Below). Please let us know what happens.
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Wednesday, March 12th, 2014 AT 9:34 AM