New Holland CX720 Repair Manual page 3917

12. Disconnect connector X023. Use a multimeter to check for continuity between connector X023 pin 2 and chassis
ground.
A. If continuity is found, the open circuit is in the lower frame (LF) harness between connector X088 pin D
and X023 pin 2 . Locate the open and repair.
B. If no continuity is found, the open circuit is in the front frame (FF) harness between connector X023 pin 2
and connector X020 pins J3-39 and 40 on one of the following wires :
Wire 710 white, connector X023 pin 2 to harness splice
Wire 708 white, harness splice to connector X020 pin J3-39
Wire 709 white, harness splice to connector X020 pin J3-40
Visually inspect the harnesses for damage, bent or dislocated pins, corroded terminals or broken wires.
Locate the open circuit and repair.
13. If the shoe leveling motor does not operate in either direction, and there are no error codes indicated, the supply
power for the circuit may not be present. Remove fuse F22 and inspect.
A. Fuse has failed. Go to step 14
B. Fuse is okay. Go to step 15.
14. If fuse has failed, replace the fuse.
A. If fuse immediately fails, a short to ground exists on one of the following wires :
Wire 024 red, from the fuse panel through connector X031 pin 16 to harness splice in front frame (FF)
harness.
Wire 700 red, harness splice to connector X020 pin J3-29 on CCM1 module.
Wire 701 red, harness splice to connector X020 pin J3-30 on CCM1 module.
Visually inspect the harnesses for damage, bent or dislocated pins, corroded terminals or broken wires.
Locate the short to ground and repair.
Fuse is okay. Go to step 15.
15. Test for 12 V power at connector X020 pins J3-29 and 30 on the CCM1 module under the cab.
A. If there is no power, there is an open circuit on one of the following wires :
Wire 024 red, from the fuse panel through connector X031 pin 16 to harness splice in front frame (FF)
harness.
Wire 700 red, harness splice to connector X020 pin J3-29 on CCM1 module.
Wire 701 red, harness splice to connector X020 pin J3-30 on CCM1 module.
Visually inspect the harnesses for damage, bent or dislocated pins, corroded terminals or broken wires.
Locate the open and repair. After repair, go to step 16.
B. If there is power, go to step 16.
16. Test for continuity to ground at connector X020 pins J3-9 & 10 on the CCM1 module under the cab.
A. If there is no continuity to ground, there is an open circuit on one of the following wires :
Wire 702 black, from connector X020 pin J3-9 to harness splice in front frame (FF) harness.
Wire 703 black, from connector X020 pin J3-10 to harness splice in front frame (FF) harness.
Wire 778 black, harness splice to front frame ground #2 .
Visually inspect the harnesses for damage, bent or dislocated pins, corroded terminals or broken wires.
Locate the open and repair. After repair, go to step 17.
B. If there is continuity to ground, go to step 17.
17. Once it has been verified that power is being supplied to the module, recheck the circuit operation as described
in step 1.
A. If the fuse fails during the testing, a short to ground on the circuit is causing the fuse to fail. Start the
troubleshooting at step 3 to locate the short to ground.
Series 1206-1347
Wiring harness - Electrical schematic frame 11 (A.30.A.88-C.20.E.11)
Series 1348 and above
Wiring harness - Electrical schematic frame 19 (A.30.A.88-C.20.E.19)
CROP PROCESSING - CLEANING Primary cleaning
K.62.B / 205
2 4/7/2006