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 899 of 1313
TEMPERATURE GAUGE INOPERATIVE (COOLANT) - Continued
STEP
1.
IS COOLANT TEMPERATURE SENDING UNIT OPERATIONAL?
a.
Place battery switch in the OFF position.
b.
Refer to point to point schematics.
Circuit 33 Wire
M939/A1 VEHICLES
M939/A2 VEHICLES
Temperature
Sending Unit
Circuit 33 wire
T0085DAA
Temperature
Sending Unit
Figure 1.
Coolant Temperature Sending Unit.
c.
Remove circuit 33 wire from coolant temperature sending unit.
d.
Place battery switch to ON position.
TM 9-2320-272-23-1
0106
0106-2
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