TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
Page 491 of 1760
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. WARNING 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. VOLTAGE TEST (1) Remove instrument panel assembly for access (para 7-15). (2) Disconnect connector clamp from engine OIL PRESS gage connector. (3) Disconnect connector PX6 from engine OIL PRESS gage connector. (4) Set multimeter to volts DC. (5) Connect positive (+) probe of multimeter to connector PX6 pin 3. (6) Connect negative (-) probe of multimeter to known good ground. (7) Position master power switch to on (TM 9-2320-365-10) and note reading on multimeter. (8) If 24 VDC is not present, repair wire 1546 from connector PX6 pin 3 to connector PX10 pin 3 (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). (9) Position master power switch to off (TM 9-2320-365-10). TM 9-2320-365-20-1 Change 2 2-327