TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
5.
HAND-HELD SPOTLIGHT DOES NOT OPERATE.
INITIAL SETUP
Tools and Special Tools
Equipment Condition
Multimeter (ANURM105C)
Engine turned off (TM 9-2320-279-10)
Tool Kit, General Mechanic's: Automotive
Parking brake applied (TM 9-2320-279-10)
(SC 5180-90-N26)
Wheels chocked (TM 9-2320-279-10)
START
TEST OPTIONS
1.
KNOWN INFO
Continuity Test.
Error Code, EC11
Is the hand-held
spotlight bulb OK?
REASON FOR QUESTION
POSSIBLE PROBLEMS
Spotlight will not operate
Spotlight bulb faulty.
if filament inside bulb is
Worklight switch faulty.
burned out. A reading of
Wire no. 40 faulty.
infinity during the conti-
Supply harness faulty.
nuity test indicates an
Cab control box faulty.
open circuit in the spot-
Linking harness faulty.
light; most likely the bulb
Main junction box
has failed.
harness faulty.
Spotlight harness faulty.
Repair hand-
NO
held spotlight
YES
Change 1
