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 295 of 926

TM 9-2320-283-20-1
TROUBLESHOOTING.
2-11.
TROUBLESHOOTING PROCEDURES (Continued).
MALFUNCTION
INSTRUCTION
INDICATION
YES
NO
56.
BOTH STOPLAMPS NOT WORKING.
1.
Remove circuit breaker
bracket far enough to
access circuit breaker
CB-1 (para 3-114),
and go to step 2.
2.
Check for voltage at
12-volts dc
Install circuit
Reset circuit
circuit 25-OR terminal
nominal.
breaker bracket
breaker CB-1
of circuit breaker
(para 3-114),
and/or trouble-
CB-1.
and go to step
shoot CB-1
3.
circuit. (Refer
to malfunction
34).
3.
Disconnect circuit
25-OR from 25A-OR at
connector, and go to
step 4.
4.
Check for voltage at
12-volts dc
Connect circuit
Repair circuit
circuit 25-OR terminal
nominal.
25-OR to 25A-OR,
25-OR (para
of connector.
and go to step
3-127).
5.
5.
Connect jumper wire
from circuit 25-OR to
25A-OR, and go to step
6.
6.
Check for voltage at
12-volts dc
Go to step 7.
Repair circuit
circuit 25A-OR terminal
nominal.
25A-OR (para
of stoplamp switch.
3-127).
2-170


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