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 1193 of 1313
TWO PRESSURE MODES INDICATED WITH STEADY MODE LIGHTS - Continued
STEP
17.
IS THERE BATTERY VOLTAGE BETWEEN PINS X AND V ON CTIS WIRING HARNESS CANNON PLUG
AT ECU?
a.
Turn battery switch to OFF position.
T0983DAA
Figure 15.
CTIS Wiring Harness.
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.
Set multimeter to measure VDC.
c.
Disconnect CTIS wiring harness cannon plug at ECU.
d.
Turn battery switch to ON position.
TM 9-2320-272-23-1
0144
0144-16
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