New Holland CX720 Repair Manual page 3978

E0325-11-Upper/Lower Sieve Sel Unidentified Failure Code
(K.62.B.90.80 - G.30.B.46)
E0325-11 - Upper/Lower Sieve Sel Unidentified Failure Code
Cause:
The Upper/Lower Sieve Relay (K-18) circuit is open, or shorted to ground.
Possible failure modes:
1. Supply wiring damaged.
2. Bad relay.
3. Controller internal failure (internal regulator failure).
Solution:
1. Enter the Infoview monitor - "Diagnose info" screen.
Select "CCM3" sub menu.
Select "Upper/Lower Sieve Sel" and select the "Status" screen. Press the "Enter" key to manually power the
circuit.
The status screen should indicate "OK" if the circuit is working properly.
A. If the status screen indicates "Error", the circuit is open or shorted to ground. Continue with Step 2.
B. If the status screen indicates "OK", the circuit is working properly. Continue with step 7.
2. Turn the key switch to the OFF position and remove the Upper/Lower Sieve Relay K18. Use a multimeter to
check the resistance of the upper/lower sieve relay coil. The proper resistance range for the throttle/brush relay
coil is 74.3 - 78.3 ohms.
A. If out of specification replace relay.
B. If the coil is within specification continue with Step 3.
3. Use a multimeter to check for continuity between relay socket pin 1 and chassis ground.
A. If no continuity to ground is found continue with Step 4.
B. If there is continuity to ground, there is a short to ground on wire 787 white in the cab main (CM) harness
between the fuse panel and connector X012 J1-6. Locate the short and repair.
4. Use a multimeter to check for continuity between relay socket pin 2 and chassis ground.
A. If continuity to ground is found continue with Step 5.
B. If there is no continuity to ground, there is an open circuit on wire 788 black in the cab main (CM) harness
between the fuse panel and cab ground 3. Locate the open and repair.
5. Turn the key switch to the ON position. Use the Infoview monitor - "Diagnose info" screen to manually power
the upper/lower sieve relay. Use the multimeter to check for 12 volts between relay socket pin 1 and chassis
ground.
A. If 12 volts is not present continue with Step 6.
B. If 12 volts is found continue with Step 7.
6. Key switch to the ON position. Use the Infoview monitor - "Diagnose info" screen to manually power the throttle/
brush relay. Use the multimeter to check for 12 volts between connector X012 J1-6 and chassis ground.
A. If 12 volts is not present, replace the CCM3 with a known good controller.
B. If 12 volts is present, there is an open circuit between connector X012 J1-6 and relay socket pin 1 wire
787 white. Locate the open and repair.
CROP PROCESSING - CLEANING Primary cleaning
K.62.B / 266
2 4/7/2006