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

  TM-9-2320-272-23-1 - Page 900 of 1313

TEMPERATURE GAUGE INOPERATIVE (COOLANT) - Continued
e.
Have assistant momentarily ground disconnected circuit 33 wire.
NOTE
If coolant temperature gauge deflects when grounded, coolant temperature sending unit
is faulty.
f.
Observe coolant temperature gauge for movement.
CONDITION/INDICATION
IS COOLANT TEMPERATURE SENDING UNIT OPERATIONAL?
DECISION
YES - Go to Step (2).
NO - Replace coolant temperature sending unit (Volume 2, WP
0334). Go to Step (4) to verify problem is solved.
TM 9-2320-272-23-1
0106
0106-3


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