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 894 of 1313
TRANSMISSION TEMPERATURE GAUGE INOPERATIVE - Continued
STEP
2.
IS CIRCUIT 324 WIRE IN GOOD CONDITION?
a.
Visually check circuit 324 wire for damage.
b.
Refer to point to point schematics.
c.
Remove instrument cluster panel (Volume 2, WP
0310).
TEST POINT
T1104DAA
Figure 2.
Transmission Temperature Gauge Wire 324.
d.
Disconnect circuit 324 wire from transmission temperature gauge.
e.
Connect jumper wire to open transmission temperature gauge terminal.
f.
Place battery switch to ON position.
g.
Momentarily touch jumper wire to vehicle chassis ground.
NOTE
If transmission temperature gauge deflects when grounded, circuit 324 wire is faulty.
h.
Observe transmission temperature gauge for movement.
CONDITION/INDICATION
IS CIRCUIT 324 WIRE IN GOOD CONDITION?
DECISION
YES - Go to Step (3).
NO - Repair circuit 324 wire (Volume 3, WP
0352). Go to Step (4) to verify problem is solved.
TM 9-2320-272-23-1
0105
0105-3
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