New Holland CX720 Repair Manual page 2120

B. If continuity is found, recheck the motor for continuity at step 10. Erase the fault codes and continue
operation.
14. Disconnect connector X010. Use a multimeter to check for continuity between connector X010 pin 2 and chassis
ground.
A. If continuity is found, the open circuit is in the harness between connector X206 pin A and connector X010
pin 2 wire 821 white. Locate the open and repair.
B. If no continuity is found, continue with step 15.
15. Remove the Throttle/Brush relay K15 from the fuse panel. Use a multimeter to check for continuity between
Throttle/Brush relay K15 terminal 4 and chassis ground.
A. If no continuity is found, the open circuit is in wire 821 white from the fuse panel through connector X004
pin 27 to connector X010 pin 2 . Locate the open and repair.
B. If continuity is found, continue with step 16.
NOTE: Continuity check is being done back through circuit through the motor. The resistance will read signifi-
cantly higher than previous tests, but should not be higher than 10 ohms above the motor resistance measured
in step 10.
16. Use a multimeter to check for continuity between Throttle/Brush relay K15 terminal 3 and chassis ground.
A. If continuity is found, the relay has failed open between terminals 3 and 4. Replace the relay.
B. If no continuity is found, continue with step 17.
17. Disconnect connector X004. Use a multimeter to check for continuity between connector X004 pin 26 and
chassis ground.
A. If continuity is found, the open circuit is in the harness between the Throttle/Brush relay K15 terminal 3 on
the fuse panel connector X004 pin 26 wire 525 white. Locate the open and repair.
B. If no continuity is found, , the open circuit is in the harness between connector X004 pin 26 and connector
X016 pin J2-21 wire 525 white. Locate the open and repair.
18. Fault codes and operating condition indicate that the motor has shorted to ground. Disconnect rotary screen
brush motor connector X206. Measure between terminals A or B on the motor connector and a known good
ground. There should be no continuity to ground.
A. There is continuity to ground, indicating a short to ground in the motor. Replace the rotary screen brush
motor.
B. There is no continuity to ground. Erase the fault codes and continue operation.
19. The throttle mechanism is mechanically bound up, resulting in high current draw.
A. See the appropriate repair manual chapter for repair and adjustment of the throttle linkage.
20. Fault codes indicate circuit fault due to short to ground between the throttle motor and the Throttle/Brush relay
K15. Disconnect the batteries using the battery key. Unplug the throttle motor connector X196 . Use a multi-
meter to check for continuity between connector X196 pin A and chassis ground.
A. If continuity is found, continue with step 21.
B. If no continuity is found, erase the fault codes and continue operation.
NOTE: The CCM module connects both sides of the circuit to ground when in neutral to "lock" the motor in
position. Power must be removed from the module prior to testing for short to ground condition on the motor
circuit to remove this ground path.
21. Disconnect connector X010. Use a multimeter to check for continuity between connector X010 pin 3 and chassis
ground.
A. If no continuity is found, the short to ground is in the harness between connector X196 pin A and connector
X010 pin 3 wire 829 white. Locate the short and repair.
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