VOLTAGE TEST 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. 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. Change 1          2-560.3 TM 9-2320-365-20-1 (11)  Install RH door marker light base on vehicle         with four screws. (12)  Install RH door marker light lamp in socket. (13)  Install lens cover on base with two screws.   (1)  Set multimeter to volts DC.   (2)  Connect positive (+) probe of multimeter         to connector P132 socket.   (3)  Connect negative (-) probe of multimeter         to ground.   (4)  Position main light switch to SER DRIVE         (TM 9-2320-365-10) and note reading on         multimeter.   (5)  If 12 VDC is not present, repair wire 1947         from connector P132 socket to splice         E22 (para 2-40) or replace RH door and cab         marker lights cable assembly (para 7-57).   (6)  If 12 VDC is present, replace RH cab marker         light and RH door marker light (para 7-31).   (7)  Position main light switch to OFF         (TM 9-2320-365-10).   (8)  Install gasket on RH door marker light base.   (9)  Connect marker light connector to         connector P132. (10)  Install lockwasher, terminal lug TL134,         lockwasher, and nut on back of RH door         marker light base.