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 1223 of 1313
FIVE INDICATOR LIGHTS FLASHING - Continued
STEP
9.
IS THERE CONTINUITY BETWEEN PRESSURE SWITCH AND CTIS WIRING HARNESS CANNON PLUG
AT ECU?
a.
Refer to point to point schematics.
T0432DAA
Figure 9.
CTIS Wiring Harness.
b.
Set multimeter to measure resistance.
c.
Connect multimeter red lead to CTIS wiring harness cannon plug.
d.
Connect multimeter black lead to electrical lead at pressure switch.
e.
Meter reading should be less than 200 ohms.
TM 9-2320-272-23-1
0146
0146-10
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