TM-9-2320-272-23-1

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5

SEPTEMBER 2012

  TM-9-2320-272-23-1 - Page 969 of 1313

HEATER WILL NOT OPERATE IN LOW OR HIGH POSITION - Continued
STEP
1.
IS HEATER BLOWER MOTOR IN GOOD OPERATING CONDITION?
a.
Check for proper voltage supply from circuit 400 wire terminal at heater blower motor.
b.
Place battery switch to OFF position.
T0133DAA
BLOWER
MOTOR
VOM
Figure 1.
Heater Blower Motor Wiring.
TM 9-2320-272-23-1
0116
0116-2


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