VOLTAGE TEST                           NOTE Inspect connector pins/sockets for damage, corrosion, and serviceability.  Check that connector pins are not pushed back or not capable of making good contact. 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. CAUTION 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. Change 1        2-502.1 TM 9-2320-365-20-1   (1) Set multimeter to volts DC.   (2) Connect positive (+) probe of multimeter        to connector PX7 pin 27.   (3) Connect negative (-) probe of multimeter to        ground.   (4) Connect batteries (para 7-48).   (5) Position master power switch to on        (TM 9-2320-365-10) and note reading on        multimeter.   (6) Position master power switch to off        (TM 9-2320-365-10).   (7) Disconnect batteries (para 7-48).   (8) If 24 VDC is not present, repair wire 1658        from connector PX7 pin 27 to terminal        board TB1 position 61 (para 2-40) or        replace WTEC II dashboard cable        assembly (para 7-10) or WTEC III        dashboard cable assembly (para 7-11).   (9) If continuity is present, replace rear air        pressure transmitter (para 7-36). (10) Connect lighted indicator display connector        to connector PX7. (11) Position lighted indicator display in        instrument panel assembly with four        screws. (12) Tighten four screws to 6-10 lb-in. (1 N·m). (13) Connect batteries (para 7-48).