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 1283 of 1313
SYSTEM OVER-INFLATES TIRES - Continued
STEP
4.
IS THERE 4.75 to 5.25 VDC PRESENT AT PRESSURE TRANSDUCER?
a.
Refer to point to point schematics.
CAUTION
Turn battery switch to OFF position before disconnecting or connecting ECU wiring
harness. Failure to do so may result in damage to ECU.
b.
Turn battery switch to OFF position.
c.
Connect CTIS wiring harness cannon plug at ECU.
T0902DAA
PRESSURE
TRANSDUCER
Figure 4.
Pressure Transducer.
d.
Disconnect CTIS wiring harness electrical lead from pressure transducer.
e.
Turn battery switch to ON position.
f.
Connect multimeter red lead to wire at pressure transducer.
g.
Connect multimeter black lead to a known good ground.
h.
Meter reading should be between 4.75 and 5.25 VDC.
TM 9-2320-272-23-1
0152
0152-8
Back to Top
