TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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CAUTION VOLTAGE TEST WARNING Remove rings, bracelets, watches, necklaces, and any other jewelry before working around vehicle. Jewelry can catch on equipment and cause injury or short across electrical circuits and cause severe burns or electrical shock. Use care when testing electrical connectors. Do not damage connector pins or sockets with multimeter probes. Failure to comply may result in damage to equipment. NOTE Inspect connector pins/sockets for damage, corrosion, and serviceability. Check that connector pins are not pushed back and are capable of making good contact. Change 1 2-641 TM 9-2320-365-20-1 (1) Disconnect connector P87 from backup light connector. (2) Set multimeter to volts DC. (3) Connect positive (+) probe of multimeter to connector P87. (4) Connect negative (-) probe of multimeter to ground. (5) Start engine (TM 9-2320-365-10). (6) Position main light switch to SER DRIVE (TM 9-2320-365-10). (7) Select R (reverse) on pushbutton shift selector (TM 9-2320-365-10) and note reading on multimeter. (8) If 12 VDC is not present, go to step 3 of this faulty. If 12 VDC is present, replace backup light assembly (para 7-29). (9) Select N (neutral) on pushbutton shift selector (TM 9-2320-365-10). (10) Position main light switch to OFF (TM 9-2320-365-10). (11) Shut down engine (TM 9-2320-365-10). (12) Connect connector P87 to backup light connector.