New Holland CX720 Repair Manual page 3686

B. If the motor coil resistance is within specification continue with Step 4.
4. Measure the resistance on connector X176 between pin A and chassis ground. Flex the main frame harness
while making this check.
A. If no continuity to ground is found erase the fault code and continue operation.
B. If there is continuity to ground continue with Step 5.
5. Disconnect connector X004. Use the multimeter to check for continuity between connector X004 pin 30 and
chassis ground.
A. If continuity is found the short to ground is in the cab main frame harness between connector X004 and
relay base K16 terminal 4 wire 695 white. Locate the short and repair.
B. If no continuity is found the short to ground is in the main frame harness between connector X004 and
connector X176 wire 695 white. Locate the short and repair.
6. Concave and covers operate in one direction only. Fault codes indicate a short to ground. Disconnect both the
concave motor connector X176 and covers motor connector X289 .
A. Measure the resistance on connector X176 between pin A and pin B. The proper resistance range for the
coil is 1.0 - 5.0 ohms. If out of specification replace concave motor.
Measure the resistance on connector X289 between pin A and pin B. The proper resistance range for the
coil is 1.0 - 5.0 ohms. If out of specification replace covers motor.
B. If the motor coil resistance is within specification continue with Step 7.
7. Check for continuity on connector X176 between pin B and chassis ground. Flex the main frame harness while
making this check.
Next check for continuity on connector X289 between pin B and chassis ground. Flex the JP and main harnesses
while making this check.
A. If no continuity to ground is found, erase the fault code and continue operation.
B. If there is continuity to ground continue with Step 8.
8. Disconnect connector X195 . Use the multimeter to check for continuity between connector X195 pin 3 and
chassis ground.
A. If continuity is found the short is between connector X176, the splice, connector X195 and connector X019
J2-1, wires 694, 693 and 522 gray. Locate the short and repair.
B. If no continuity is found the short to ground is in the JP harness between connector X195 and connector
X289 wire 693 gray. Locate the short and repair.
9. Concave does not operate in either direction. Fault code indicates an open in circuit. Disconnect the concave
adjustment motor connector X176.
A. Measure the resistance on connector X176 between pin A and pin B. The proper resistance range for the
coil is 1.0 - 5.0 ohms. If out of specification replace motor.
B. If the motor coil resistance is within specification continue with Step 10.
10. Replace the concave/covers relay K-16 with a known good relay. Connect X176 and operate the concaves.
A. If the concaves are now working troubleshooting is complete.
B. If the concaves still do not work continue with Step 11.
11. Again disconnect concave motor connector X176. Key switch ON. Operate the concave motor using the In-
foView diagnostic screen. Use a multimeter to measure the voltage between connector X176 pin A and chassis
ground.
A. If 12 volts is read continue with Step 12.
B. If 12 volts is not read continue with Step 13.
CROP PROCESSING - STORING AND HANDLING Grain storing
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