TM 9-2350-247-20-1
NO EXTERIOR LIGHTS OPERATE
0034 00
INITIAL SETUP:
Maintenance Level
Unit
Tools and Special Tools
General Mechanics Tool Kit (WP 0541 00, Item 57)
Multimeter (WP 0541 00, Item 29)
Personnel Required
Unit Mechanic
References
See your -10
Equipment Condition
Engine stopped (see your -10)
Carrier blocked (see your -10)
Instrument panel partially removed (WP 0256 00)
NOTE
M548A1 and M548A3 troubleshooting procedures are the same. M548A1 procedure i s shown.
T
1. Remove main wiring harness plug (1) from light switch jack (2).
2. Remove main wiring harness circuit 15 plug (3) from power/
instrument panel wiring harness circuit 15 jack (4).
3. Measure resistance between main wiring harness circuit 15 plug
(3) and plug (1) pin F (5).
4. Does multimeter read 0 ohms?
YES
NO
TN
1. Repair main wiring harness circuit
15 (WP 0294 00).
2. Verify no faults found.
0034 00-1