Engine Controls - Aftermarket Accessory Usage

This TSB number 04-06-04-054C, dated 02/08/12 has been superceded by TSB number 04-06-04-054E , dated 08/06/12
This TSB number 04-06-04-054D, dated 02/28/12 has been superceded by TSB number 04-06-04-054E , dated 08/06/12