TM-9-2320-283-20-1
TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3
DECEMBER 1983
TM-9-2320-283-20-1 - Page 334 of 926
TM 9-2320-283-20-1
TROUBLESHOOTING.
2-11.
TROUBLESHOOTING PROCEDURES (Continued).
MALFUNCTION
INSTRUCTION
INDICATION
YES
NO
73.
ONE TRAILER TAILLAMP NOT WORKING.
NOTE
Headlamp switch must be in ON position and blackout
toggle switch set to NORMAL position when doing the
following checks.
Check trailer taillamp
circuit for defects.
74.
ALL 12-VOLT TRAILER CLEARANCE AND MARKER LAMPS NOT WORKING.
NOTE
•
Headlamp switch must be in ON position and blackout
toggle switch set to NORMAL position when doing the
following checks.
•
It is assumed here that chassis clearance and marker
lamps are OK.
1.
Disconnect circuit
31B-BK from 31C-BK at
connector, and go to
step 2.
2-209
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