New Holland CX720 Repair Manual page 3963

B. If the lower sieve circuit still does not work, continue with step 16.
16. Ensure that the batteries are connected using the battery key, and that fuse F27 is good. Use the multimeter to
check for continuity between connector X228 pin E and chassis ground.
A. If continuity is found, continue with step 19.
B. If no continuity is found, continue with step 17.
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 F27. This ground path
may be used to test for an open circuit condition.
17. Disconnect connector X072. Use a multimeter to check for continuity between connector X072 pin P and chas-
sis ground.
A. If continuity is found, the open circuit is in the lower frame rear (LR) harness between connector X072 pin
P and connector X228 pin E wire 789 gray. Locate the open and repair.
B. If no continuity is found, continue with step 18.
18. 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 connector X072 pin P wire 789 gray or 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 785 gray. Locate the open and repair.
19. Remove the Upper/lower sieve relay K18 on the fuse panel, and install a jumper wire between terminals 3 & 5.
Use a multimeter to check for continuity between connector X228 pin D and chassis ground.
A. If no continuity is found, continue with step 20.
B. If continuity is found, recheck the motor for continuity at step 14. Erase the fault codes and continue
operation.
20. Disconnect connector X072. Use a multimeter to check for continuity between connector X072 pin N and chas-
sis ground.
A. If continuity is found, the open circuit is in the lower frame rear (LR) harness between connector X228 pin
D and connector X072 pin N wire 790 white. Locate the open and repair.
B. If no continuity is found, continue with step 21.
21. Disconnect connector X025. Use a multimeter to check for continuity between connector X025 pin 15 and
chassis ground.
A. If continuity is found, the open circuit is in the straw walker (SW) harness between connector X025 pin 15
and connector X072 pin N wire 790 white. Locate the open and repair.
B. If no continuity is found, continue with step 22.
22. Disconnect connector X219. Use a multimeter to check for continuity between connector X219 pin 2 and chassis
ground.
A. If continuity is found, the open circuit is in the expansion (EX) harness between connector X219 pin 2 and
connector X025 pin 15 wire 790 white. Locate the open and repair.
B. If no continuity is found, continue with step 23.
23. Remove the jumper wire between terminals 3 & 5 for relay K18 on the fuse panel. Use a multimeter to check
for continuity between Upper/lower sieve relay K18 terminal 5 and chassis ground.
A. If no continuity is found, the open circuit is in wire 790 white from the fuse panel through connector X005
pin 16 to connector X219 pin 2 . Locate the open and repair.
CROP PROCESSING - CLEANING Primary cleaning
K.62.B / 251
2 4/7/2006