4-42. TRANSMISSION CONTROL MODULE (TCM) REPLACEMENT (4L80-E)
This task covers:
a. Removal
b. Installation
a. Removal
CAUTION
Ensure that ignition switch is OFF before disconnecting or reconnecting
the Transmission Control Module (TCM). Failure to do this may cause
internal damage to TCM.
1.
Disconnect harness connector (1) from TCM (2).
2.
Remove four nuts (4), washers (3), and TCM (2) from body (5).
1.
Install TCM (2) on body (5) with four washers (3) and nuts (4).
2.
Connect harness connector (1) to TCM (2).
INITIAL SETUP:
Applicable Models
M997A2, M1025A2, M1035A2,
M1043A2, M1045A2, M1097A2, M1123
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Personnel Required
One mechanic
One assistant
Manual References
TM 9-2320-280-24P
Equipment Condition
• Battery ground cables disconnected (para. 4-73).
• Left rear seat compartment cover removed
(para. 10-43).
b. Installation
TM 9-2320-280-20-2
Change 2
4-66.1
FOLLOW-ON TASKS: • Connect battery ground cables (para. 4-73).
• Install left rear seat compartment cover (para. 10-43).
