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Page Title: Illustration 178 Schematic for the AT/MT/HT Transmission Relay
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406
TM 9-2320-312-24-2
Troubleshooting Section
g00729187
Illustration 178
Schematic for the AT/MT/HT Transmission Relay
Test Step 1. Check Electrical Connectors
and Wiring.
A. Thoroughly inspect ECM connectors J1/P1
and the firewall bulkhead connector. Refer
to Troubleshooting, "Electrical Connectors -
Inspect" for details.
B. Perform a 45 N (10 lb) pull test on each of the
wires that go to P1:20 or P1:12.
C. Check the ECM connector (allen head screw) for
the proper torque of 6.0 Nm (55 lb in).
D. Check the harness and wiring for abrasion and
pinch points from the sensor to the ECM.
Expected Result:
All connectors, pins and sockets should be
completely coupled and/or inserted and the harness
and wiring should be free of corrosion, abrasion
or pinch points.
Results:
OK Proceed to Test Step 2.
Not OK
Repair: Perform the following repair:
Repair the connectors or wiring and/or replace
the connectors or wiring. Ensure that all of the
seals are properly in place and ensure that the
g00729188
Illustration 179
connectors are completely coupled.
ECM terminal

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