TM-9-2320-338-10
TRUCK, CARGO, 8X8, M977A4
TECHNICAL MANUAL; OPERATOR'S MANUAL
OCTOBER 2008
TM-9-2320-338-10 - Page 676 of 1120
Allison
TRAILER
AIR SUPPLY
M
M
MASTER LIGHTS
SWITCH
Figure 1.
CONDITION/INDICATION
Is the lighting system control in the ON or OPERATING position?
DECISION
No - Test 3 - Do all lighting circuits operate properly?
Yes - Test 2 - Is intervehicular connection secure and/or connected correctly?
TEST 2 - Is intervehicular connection secure and/or connected correctly?
1.
If trailer is attached, and trailer lighting system is not working, check intervehicular
connection. (WP 0036)
2.
If trailer lights are the problem, make sure cable is securely connected.
TM 9-2320-338-10
0110
0110-2
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