TM-9-2320-365-20-2 LMTV Unit Maintenance Manual M1078 Series - Volume 2 Download
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CAUTION 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. CONTINUITY TEST (1) Remove two screws and washers from front grille. (2) Remove screw and washer from front grille. (3) Remove front grille from cab. (4) Disconnect connector P119 from connector J119. (5) Set multimeter to ohms. (6) Connect positive (+) probe of multimeter to connector P119 pin n. (7) Connect negative (-) probe of multimeter to connector P119 pin g and note reading on multimeter. (8) Connect negative (-) probe of multimeter to all other pins in connector P119, one at a time, and note reading on multimeter. (9) Connect negative (-) probe of multimeter to ground and note reading on multimeter. (10) Connect positive (+) probe of multimeter to connector P119 pin g. (11) Connect negative (-) probe of multimeter to all other pins in connector P119 (except pin n), one at a time, and note reading on multimeter. Change 1 2-1381 TM 9-2320-365-20-2 (12) Connect negative (-) probe of multimeter to ground and note reading on multimeter. (13) If 200-400 ohms resistance is not present in step 7, or continuity is present in step 8, 9, 11, or 12, notify DS Maintenance.