Case IH AFX8010 Repair Manual page 1264

NOTE: The CCM module connects both sides of the circuit to ground when in neutral to "lock" the motor in
position, irregardless of key switch position, as long as it receives power through fuse F-25. This ground path
may be used to test for an open circuit condition.
10. Disconnect connector X023. Use a multimeter to check for continuity between the front frame (FF) harness
end of connector X023 pin 3 and chassis ground. There should be continuity to ground.
A. If continuity is found, there is as open circuit in the lower frame (LF) harness between connector X023
pin 3 and connectorX094 pin B wire 715 grey. Locate the open and repair.
B. If no continuity is found, there is an open circuit in the front frame (FF) harness between connector X023
pin 3 and connector X017 pins J3-19 and J3-20 on one of the following wires: wire 715 grey, connector
X023 pin 3 to FF harness splice, wire 526 grey, harness splice to connector X017 pin J3-19, and wire
527 grey, harness splice to connector X017 pin J3-20. Locate the open and repair.
11.
Disconnect connector X094. Use a multimeter to check for continuity between the harness end of connector
X094 pin A and chassis ground. There should be continuity to ground.
A. If no continuity is found, continue with step 12.
B.
If continuity is found, recheck the motor for continuity at step 8.
12. Disconnect connector X023. Use a multimeter to check for continuity between the front frame (FF) harness
end of connector X023 pin 4 and chassis ground. There should not be any continuity to ground.
A.
If continuity is found, there is an open circuit to ground in the lower frame (LF) harness between
connector X023 pin 4 and connectorX094 pin A wire 716 white. Locate the open and repair.
B. If no continuity is found, there is an open circuit in the front frame (FF) harness between connector X023
pin 4 and connector X017 pins J3-39 and J3-40 on one of the following wires: wire 716 white, connector
X023 pin 4 to FF harness splice, wire 528 white, harness splice to connector X017 pin J3-39, and wire
529 white, harness splice to connector X017 pin J3-40. Locate the open and repair.
13. If the transmission shift motor does not operate in either direction, and there are no fault codes indicated, the
supply power for the circuit may not be present. Remove and inspect fuse F-25.
A. If the fuse has failed, continue with step 14.
B. If the fuse is okay, continue with step 15.
14. If fuse F-25 has failed, replace the fuse.
A. If the fuse immediately fails, there is a short to ground in the cab main (CM) or front frame (FF) harnesses
in one of the following wires; wire 029 red, from the fuse panel through connector X031 pin 14 to
front frame (FF) harness splice, wire 507 red, harness splice to connector X017 pin J3-29 on CCM2
module, or wire 508 red, harness splice to connector X017 pin J3-30 on CCM2 module. Locate the
short to ground and repair.
B. If the fuse is okay, continue with step 15.
15. Carefully remove connector X017 from the bottom of the CCM2 module. Use a multimeter to check for voltage
on the harness end of connector X017 pins J3-29 and J3-30. There should be 12 volts.
A. If there is no voltage, there is an open circuit in the cab main (CM) or front frame (FF) harnesses in one
of the following wires; wire 029 red, from the fuse panel through connector X031 pin 14 to front frame
(FF) harness splice, wire 507 red, harness splice to connector X017 pin J3-29 on CCM2 module, or wire
508 red, harness splice to connector X017 pin J3-30 on CCM2 module. Locate the open and repair.
After repair, go to step 16.
B. If there is voltage, continue with step 16.
16. Carefully remove connector X017 from the bottom of the CCM2 module. Use a multimeter to check for
continuity between the harness end of connector X017 pins J3-9 and J3-10 and chassis ground. There
should be continuity to ground.
A. If there is no continuity to ground, there is an open circuit in the front frame (FF) harness in one of the
following wires; wire 516 black, connector X017 pin J3-9 to front frame (FF) harness splice, wire 517
POWER TRAIN - TRANSMISSION Mechanical
9680 1 27/05/2004
C.20.B / 74