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 484 of 1313
TRANSMISSION OVERHEATS AS INDICATED BY TRANSMISSION TEMPERATURE GAUGE - Continued
T0072DAA
Test Probe
Cable W2
Red
Black
Connector Removed From
Temperature Sending Unit
Figure 2.
Test Lead Hookup.
f.
Connect multimeter red lead to connector removed from the temperature sending unit. Refer to point to
point schematics.
g.
Connect multimeter black lead to a good ground.
NOTE
If meter displays a reading between 22 and 26 VDC, temperature gauge is operating
correctly.
h.
Meter reading should be between 22 and 26 VDC.
CONDITION/INDICATION
IS TRANSMISSION TEMPERATURE GAUGE OPERATING PROPERLY?
DECISION
YES - Replace temperature sending unit (Volume 2, WP
0341). Go to Step (3) to verify problem is solved.
NO - Perform Transmission Temperature Gauge Inoperative troubleshooting (WP
0105).
STEP
3.
IS YOUR ORIGINAL TRANSMISSION OVERHEATING PROBLEM STILL PRESENT?
a.
Ensure vehicle is returned to normal operating condition.
b.
Check to see if your original transmission overheating problem still exists.
CONDITION/INDICATION
IS YOUR ORIGINAL TRANSMISSION OVERHEATING PROBLEM STILL PRESENT?
DECISION
YES - Notify supervisor.
NO - Problem fixed.
END OF WORK PACKAGE
TM 9-2320-272-23-1
0036
0036-3/4 blank
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