TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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CAUTION  VOLTAGE TEST  WARNING  Change 1 2-673  TM 9-2320-366-20-1  (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 9-2320-366-10-1).  (6) Position main light switch to SER DRIVE  (TM 9-2320-366-10-1).  (7) Select R (reverse) on pushbutton shift  selector (TM 9-2320-366-10-1) 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 7-36).  (9) Select N (neutral) on pushbutton shift  selector (TM 9-2320-366-10-1).  (10) Position main light switch to OFF  (TM 9-2320-366-10-1).  (11) Shut down engine (TM 9-2320-366-10-1).  (12) Connect connector P87 to backup light  connector.  Inspect connector pins/sockets for damage,  corrosion, and serviceability. Check that  connector pins are not pushed back and  are capable of making good contact.  NOTE  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.  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.