New Holland CX720 Repair Manual page 1933

A. If continuity is found, the open circuit is in the engine (EN) harness, wire 524 gray between connector X010
pin 1 and harness splice. Locate the open and repair.
B. If no continuity is found, the open circuit is in the main frame (MF) harness between connector X010 pin
1 and connector X016 pin J2-1 on wire 524 gray. Locate the open and repair.
38. If the throttle motor and rotary brush screen 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 F23 and inspect.
A. Fuse has failed. Go to step 39.
B. Fuse is okay. Go to step 40.
39. If fuse has failed, replace the fuse.
A. If fuse immediately fails, a short to ground exists on one of the two following wires:
Wire 025 red, from the fuse panel through connector X005 pin 1 to connector X016 pin J2-11 on CCM2
module.
Wire 028 red, from the fuse panel through connector X031 pin 4 to connector X017 pin J3-7 on CCM2
module.
Visually inspect the harnesses for damage, bent or dislocated pins, corroded terminals or broken wires.
Locate the short to ground and repair.
B. Fuse is okay. Go to step 40.
40. Test for 12 V power at connector X016 pin J2-11 on the CCM2 module under the cab.
A. If there is no power, there is an open circuit on wire 025 red, from the fuse panel through connector X005
pin 1 to connector X016 pin J2-11 on CCM2 module. Locate the open and repair. After repair, go to step
41.
B. If there is power, go to step 41.
41. Test for continuity to ground at connector X016 pin J2-3 on the CCM2 module under the cab.
A. If there is no continuity to ground, there is an open circuit on wire 514 black, from connector X016 pin J2-3
on CCM2 module to the front frame ground #2 . Locate the open and repair. After repair, go to step 42.
B. If there is continuity to ground, go to step 42.
42. 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 being operated at the time of failure is
causing the fuse to fail.
Series 1206-1347
Wiring harness - Electrical schematic frame 04 (A.30.A.88-C.20.E.04)
Series 1206-1347
Wiring harness - Electrical schematic frame 09 (A.30.A.88-C.20.E.09)
POWER PRODUCTION - FUEL AND INJECTION SYSTEM
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