TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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VOLTAGE TEST  TM 9-2320-365-20-1  Change 1 2-723  (1) Remove relay K10 from PDP.  (2) Set multimeter to volts DC.  (3) Connect positive (+) probe of multimeter  to PDP, terminal 86, where relay K10  was removed.  (4) Connect negative (-) probe of multimeter  to ground.  (5) Position master power switch to on  (TM 9-2320-365-10).  (6) Position main light switch to STOPLIGHT  (TM 9-2320-365-10).  (7) Apply brakes and note reading on  multimeter.  (8) If 12 VDC is not present, repair wire  1940 from relay K10 terminal 86 to  terminal board TB1 position 29  (para 2-40) or replace WTEC II  dashboard cable assembly (para 7-10)  or WTEC III dashboard cable  assembly (para 7-11).  (9) Position main light switch to OFF  (TM 9-2320-365-10).  (10) Position master power switch to off  (TM 9-2320-365-10).  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.