TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
7.
HOURMETER DOES NOT OPERATE (MODEL A ONLY) (continued).
MAIN JUNCTION BOX
CONNECTOR (J4)
CONTINUITY TEST
CAUTION
Electrical power must be shut off
from circuit before continuity can
be checked. Failure to comply
with this caution may result in
damage to test equipment or
electrical system.
(1) Set multimeter to ohms position.
NOTE
A reading of infinity indicates an
open circuit.
(2) Check for continuity between main
junction box connector (J4), position
D, and terminal strip, position 25.
WIRING REMOVED FOR CLARITY
4-129
Change 1
4
