TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 97 of 1417
WHEEL SPEED SENSOR OUTPUT TEST - Continued
j.
Code "S2A" should be displayed on Info Centre.
CONDITION/INDICATION
DOES LEFT REAR-REAR WHEEL SPEED SENSOR INDICATE A VALID SIGNAL WHEN TESTED?
DECISION
NO - Go to Step (2).
YES - Go to Step (3).
STEP
2.
IS LEFT REAR-REAR WHEEL SPEED SENSOR PROPERLY CONNECTED AND ALIGNED?
a.
Turn starter switch to OFF position.
b.
Turn battery switch OFF.
c.
Check left rear-rear wheel speed sensor for proper connection.
WHEEL SPEED
SENSOR CONNECTION
T1003DAA
WHEEL SPEED
SENSOR
Figure 4.
Wheel Speed Sensor.
d.
Check left rear-rear wheel speed sensor for proper alignment. (Volume 3, WP
0468).
e.
If wheel speed sensor is properly connected and aligned, remove jack stand and lower wheel.
f.
If wheel speed sensor is properly connected and aligned, uncage brake.
CONDITION/INDICATION
IS LEFT REAR-REAR WHEEL SPEED SENSOR PROPERLY CONNECTED AND ALIGNED?
TM 9-2320-272-23-2
0160
0160-4
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