TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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TM 9-2320-366-20-1 Change 1 2-753 CONTINUITY TEST VOLTAGE TEST WARNING (1) Remove instrument panel assembly for access (para 7-15). (2) Disconnect connector PX15 from main light switch. (3) Set multimeter to ohms. (4) Connect positive (+) probe of multimeter to main light switch pin K. (5) Connect negative (-) probe of multimeter to main light switch pin C. (6) Position main light switch to STOPLIGHT (TM 9-2320-366-10-1) and note reading on multimeter. (7) If continuity is not present, replace main light switch (para 7-17). (8) Position main light switch to OFF (TM 9-2320-366-10-1). (9) Connect connector PX15 to main light switch. (1) Remove PDP cover (para 16-2). (2) Remove diode D1A from PDP. (3) Set multimeter to volts DC. (4) Connect positive (+) probe of multimeter to PDP, terminal 2, where diode D1A was removed. (5) Connect negative (-) probe of multimeter to ground. (6) Position master power switch to on (TM 9-2320-366-10-1). (7) Position main light switch to STOPLIGHT (TM 9-2320-366-10-1). (8) Apply brakes and note reading on multimeter. (9) If 12 VDC is not present, repair wire 22 from diode D1A terminal 2 to connector PX15 socket C (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). (10) Position main light switch to OFF (TM 9-2320-366-10-1). (11) Position master power switch to off (TM 9-2320-366-10-1). 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.