New Holland CX720 Repair Manual page 3243

E0517-05-Lateral Float CW valve Line Disconnected (G.30.A.12 -
G.30.B.50)
E0517-05 - Lateral Float CW valve Line Disconnected
Cause:
The lateral float CW valve (L-18) circuit is open.
Possible failure modes:
1. Valve supply wiring is open.
2. Bad solenoid.
3. Module internal failure (internal regulator failure).
Solution:
1. Enter the InfoView™ monitor - "Diagnose info" screen.
Select "Header" sub menu.
Select "Lateral Float CW valve" and select the "Current" screen. Manually power the circuit by using the "+" key
to select 100 %, and press "Enter".
The proper current range is approximately 1.0 - 1.5 amps.
A. If the reading is 0 amps, the circuit is open. Continue with step 2.
B. If the reading is within the proper limits, the circuit is working properly. Continue with step 16.
NOTE: Visually inspect the wiring harness and connectors. Verify that the connector was fully installed. Inspect
the terminals and wires at the connector for pushed back or corroded terminals or damaged wires. Flex the
harnesses involved to reveal intermittent breaks or shorts in the wiring concerned.
2. Disconnect connector X267 at the lateral float CW solenoid L18. Use a multimeter to check the resistance of
the lateral float CW solenoid between the two terminals on the coil. The proper resistance range is 2 - 6 ohms.
A. If there is no continuity, replace the solenoid.
B. If the solenoid is within specification, continue with step 3.
3. Key off. Disconnect connector X281 at the HHC module, and install a jumper wire between connector X281 pin
13 and chassis ground. Use a multimeter to check for continuity between connector X267 pin 2 and chassis
ground.
A. If there is no continuity, continue with step 4.
If there is continuity, continue with step 7.
B.
4. Key off. Disconnect connector X021, and use a multimeter to check for continuity between connector X021 pin
H and chassis ground.
A. If there is no continuity to ground, continue with step 5.
B. If there is continuity to ground, there is an open circuit in the feeder valve (FV) harness between connector
X267 pin 2 and connector X021 pin H wire 554 blue. Locate the open and repair.
5. Key off. Disconnect connector X008, and use a multimeter to check for continuity between connector X008 pin
13 and chassis ground.
A. If there is no continuity to ground, continue with step 6.
B. If there is continuity to ground, there is an open circuit in the front frame (FF) harness between connector
X021 pin H and connector X008 pin 13 wire 554 blue or 555 blue. Locate the open and repair.
6. Key off. Disconnect connector X022, and use a multimeter to check for continuity between connector X022 pin
H and chassis ground.
TOOL POSITIONING - LEVELLING
2 4/7/2006
G.30.A / 15