New Holland CX720 Repair Manual page 3967

B. If continuity is found, continue with step 50.
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 F23. This ground path
may be used to test for an open circuit condition.
48. Disconnect connector X005. Use a multimeter to check for continuity between connector X005 pin 15 and
chassis ground.
A. If continuity is found, the open circuit is in the cab main (CM) harness between the Upper/lower sieve relay
K18 terminal 3 on the fuse panel connector X005 pin 15 wire 786 red. Locate the open and repair.
B. If no continuity is found, continue with step 49.
49. Disconnect connector X219. Use a multimeter to check for continuity between connector X219 pin 1 and chassis
ground.
A. If continuity is found, the open circuit is in the main frame (MF) harness between connector 219 pin 1 and
connector X005 pin 15 wire 786 red. Locate the open and repair.
B. If no continuity is found, , the open circuit is in the expansion (EX) harness between connector X219 pin
1 and connector X016 pin J2-21 wire 786 red. Locate the open and repair.
50. Disconnect connector X072. Use a multimeter to check for continuity between connector X072 pin J or P and
chassis ground.
A. If continuity is found, erase the fault code and continue operation.
B. If no continuity is found, continue with step 51.
51. Disconnect connector X025. Use a multimeter to check for continuity between connector X025 pin 14 and
chassis ground.
A. If continuity is found, the open circuit is in the straw walker (SW) harness between connector X025 pin 14
and the harness splice on wire 785 gray. Locate the open and repair.
B. If no continuity is found, the open circuit is in the expansion (EX) harness between connector X025 pin 14
and connector X013 pin J2-1 on wire 791 gray. Locate the open and repair.
52. If the upper sieve motor and lower sieve motor do not operate in either direction, and there are no error codes
indicated, the supply power for the circuit may not be present. Remove fuse F27 and inspect.
A. Fuse has failed. Go to step 53.
B. Fuse is okay. Go to step 56.
53. If fuse has failed, replace the fuse.
A. If fuse immediately fails, a short to ground exists on the wires to the CCM3 module connectors. Continue
with step 54.
B. Fuse is okay. Go to step 56.
54. Disconnect connector X005 . Use a multimeter to check for continuity between the harness end of connector
X005 pin 4 and chassis ground.
A. If no continuity is found, there is a short to ground in the cab main (CM) harness between fuse F27 on the
fuse panel and connector X005 pin 4 wire 031 red. Locate the short and repair.
B. If continuity is found, continue with step 55.
55. Disconnect connector X034 . Use a multimeter to check for continuity between the harness end of connector
X034 pin 2 and chassis ground.
A. If no continuity is found, there is a short to ground in the main frame (MF) harness between connector
X034 pin 2 and connector X005 pin 4 wire 031 red. Locate the short and repair.
CROP PROCESSING - CLEANING Primary cleaning
K.62.B / 255
2 4/7/2006