New Holland CX720 Repair Manual page 3310

E0188-11-Header Reel Down valve Unidentified Failure Code
(K.25.B.13.05 - G.30.B.46)
E0188-11 - Header Reel Down valve Unidentified Failure Code
Cause:
The header reel down valve (L-13) circuit is open, or shorted to ground.
Possible failure modes:
1. Supply wiring damaged.
2. Bad solenoid.
3. Controller internal failure (internal regulator failure).
Solution:
1. Enter the InfoView monitor - "Diagnose info" screen.
Select "Header" sub menu.
Select "Header Reel Down valve" 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 9.
2. Disconnect connector X269. Use a multimeter to check the resistance of the header reel down valve coil (L13).
The proper resistance range is 3 - 5 ohms.
A. If there is zero resistance, the header reel down solenoid is shorted internally. Replace the solenoid.
B. If there is infinite resistance, the header reel down solenoid is open. Replace the solenoid.
C. If the resistance is correct, continue with step 3.
3. Use a multimeter to check for continuity between connector X269 pin 1 (harness side) and chassis ground. Flex
the feeder valves (FV) harness while making this check.
A. If there is continuity to ground, continue with step 4.
B. If there is no continuity to ground, continue with step 5.
4. Disconnect connector X021. Use a multimeter to check for continuity between connector X021 pin N and chas-
sis ground. Flex the front frame (FF) harness between the connector X021 and connector X017 while making
this check.
A. If there is no continuity to ground, the short to ground is in the feeder valves (FV) harness between con-
nector X021 and connector X269 wire 557 white. Locate the short and repair.
B. If there is continuity to ground, the short to ground is in the front frame (FF) harness between connector
X021 and connector X017 wire 557 white. Locate the short and repair.
5. Use a multimeter to check for continuity between connector X269 pin 2 (harness side) and chassis ground. Flex
the feeder valves (FV) harness while making this check.
A. If there is no continuity to ground, continue with step 6.
B. If there is continuity to ground, continue with step 7.
6. Disconnect connector X021. Use a multimeter to check for continuity between connector X021 pin O (harness
side) and chassis ground. Flex the front frame (FF) harness between connector X021 and the front frame ground
2 while making this check.
CROP PROCESSING - FEEDING Reel feeding
2 4/7/2006
K.25.B / 42