TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 304 of 953
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).