TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
5.
HAND-HELD SPOTLIGHT DOES NOT OPERATE (continued).
2.
TEST OPTIONS
KNOWN INFO
Error Codes, EC11 and
Visual inspection.
Are both the worklight
EC 12.
and the hand-held
REASON FOR QUESTION
Spotlight bulb OK.
spotlight inoperative?
To isolate the location
POSSIBLE PROBLEMS
in the circuit where fault
exists.
Worklight switch faulty.
Wire no. 40 faulty.
Supply harness faulty.
Cab control box faulty.
Linking harness faulty.
Main junction box
MODEL A, Go to
harness faulty.
Step 5.
NO
Spotlight harness faulty.
MODEL B, Go to
Step 10.
YES
4-98
Change 1
