MASTER INDICATOR WARNING LIGHT CIRCUIT. (Cont)

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Make sure MASTER switch is OFF before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

Disconnect wiring harness from instrument (gage) panel. Place red probe

Step 6.

on pin K (lead 459) of receptacle. Ground black probe. Set MASTER

switch ON. If multimeter indicates about 24 volts, repair lead 459 between

plug and diode. Refer to page 2-371. If multimeter indicates no voltage,

repair lead 459 between receptacle and MASTER switch. Refer to page

2-371. Set MASTER switch OFF. Connect wiring harness to instrument

(gage) panel.

2-174