ATSG AXOD Update Handbook page 114

CONNECTING THE DVOM TO CHECK AMPS TO THE TRANSAXLE
To Pin 38 WHITE/YELLOW
At Computer
Cut the White/Yellow wire from Pin No. 38 at the computer and connect the DVOM
leads, as shown above, to perform this test. This is known as "connecting in series".
EPC AMPS
*
With a normally functioning EPC circuit, you will see about 150 PSI on the
pressure gauge while in Park, on "the initial start up", which is part of the
computer strategy, "and is normal".
Technical Service Information
FLUKE 88 FLUKE 88
AUTO
V
RPM
V
OFF
A
10A Max
FUSED
1.0 .90
EPC PSI 20 30
* P psi 75 ----
R psi 90 145
----
N psi 75
OD psi 75 100
D psi 75 100
L psi 80 100
Figure 99
AUTOMATIC TRANSMISSION SERVICE GROUP
DC
00.75
A
mV
mA
A
mA
A
V
mA COM RPM
.75 .70 .60 .50 .35
40 50 60 70 80
---- ---- ---- ---- ----
175 200 225 275 310
---- ---- ---- ---- ----
125 145 165 180 210
125 145 165 180 210
125 155 175 190 220
114
WHITE/YELLOW To Transaxle
Case Connector
Copyright © 2002 ATSG