New Holland CX720 Repair Manual page 3959

B. If continuity is found, there is a short to ground in the expansion (EX) harness between connector X034
pin 2 , connector X013 pin J2-11 and connector X014 pin J3-7 on one of the following wires:
Wire 031 red, connector X034 pin 2 to harness splice
Wire 511 red, harness splice to connector X013 pin J2-05
Wire 512 red, harness splice to connector X014 pin J3-7
Visually inspect the harnesses for damage, bent or dislocated pins, corroded terminals or broken wires.
Locate the short to ground and repair.
56. Test for 12 V power at connector X013 pin J2-11 on the CCM3 module under the cab.
A. If there is no power, there is an open circuit on the power wires to the CCM3 module. Continue with step
57.
B. If there is power, go to step 59.
57. Disconnect connector X005 . Use a multimeter to check for 12 V at connector X005 pin 4 .
A. If there is no power, there is an open circuit in the cab main (CM) harness between fuse F27 on the fuse
panel and connector X005 pin 4 wire 031 red. Locate the open and repair.
B. If power is found, continue with step 55.
58. Disconnect connector X034 . Use a multimeter to check for 12 V at connector X034 pin 2 .
A. If no continuity is found, there is an open circuit in the main frame (MF) harness between connector X034
pin 2 and connector X005 pin 4 wire 031 red. Locate the open and repair.
B. If continuity is found, there is an open circuit in the expansion (EX) harness between connector X034 pin
2 and connector X013 pin J2-11 wire 031 red or 511 red. Locate the open and repair.
59. Test for continuity to ground at connector X013 pin J2-3 on the CCM3 module under the cab.
A. If there is no continuity to ground, there is an open circuit in the expansion (EX) harness from connector
X013 pin J2-3 on CCM3 module to the front frame ground #2 wire 520 black. Locate the open and repair.
After repair, go to step 60.
B. If there is continuity to ground, go to step 60.
60. 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 16 (A.30.A.88-C.20.E.16)
Series 1206-1347
Wiring harness - Electrical schematic frame 17 (A.30.A.88-C.20.E.17)
Series 1348 and above
Wiring harness - Electrical schematic frame 21 (A.30.A.88-C.20.E.21)
Series 1348 and above
Wiring harness - Electrical schematic frame 26 (A.30.A.88-C.20.E.26)
CROP PROCESSING - CLEANING Primary cleaning
K.62.B / 247
2 4/7/2006