4-42.1. E-PROM REPLACEMENT
This task covers:
Ensure that ignition switch is OFF before replacing E-PROM or
disconnecting or reconnecting the Transmission Control Module (TCM).
Failure to do this may cause internal damage to TCM.
For proper calibration of E-PROM to transmission, ensure E-PROM is
the same production year as the transmission installed in the vehicle.
Loosen four screws (1) and remove cover (2) and foam insulation (4) from TCM box (8).
Remove two screws (5) and access panel (6) from terminal box (9).
Remove E-PROM (10) from circuit board (7).
M997A2, M1025A2, M1035A2,
M1043A2, M1045A2, M1097A2, M1123
General mechanics tool kit:
automotive (Appendix B, Item 1)
RTV sealant (Appendix C, Item 38)
Battery ground cables disconnected (para. 4-73).
Left rear seat compartment cover removed
Install E-PROM (10) on circuit board (7) by pushing it down firmly to ensure it is well seated.
Install access panel (6) on terminal box (9) with two screws (5).
Clean sealant from TCM box (8) and cover (2).
Apply 0.125 in. (3.175 mm) bead of RTV adhesive sealant in groove (3) on cover (2).
Install foam insulation (4) and cover (2) on TCM box (8) and tighten four screws (1) to 30 lb-in.