New Holland CX720 Repair Manual page 2538

E0059-11-Dual Range Valve Unidentified Failure Code (C.20.F.05.05
- G.30.B.46)
E0059-11 - Dual Range Valve Unidentified Failure Code
Cause:
The dual range solenoid (L27) circuit open or is shorted to ground.
Possible failure modes:
1. Supply wiring shorted to ground or open circuit.
2. Controller internal failure (internal regulator failure).
Solution:
1. Enter the InfoView Monitor - "Diagnose info" screen.
Select "Driveline" sub menu.
Select "Dual Range 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 7.
2. Turn the key switch to the OFF position and disconnect the dual range valve connector X092.
A. Use a multimeter to check the resistance of the dual range valve coil. The proper resistance range for the
coil is 1.0 - 8.0 ohms. If out of specification replace coil.
B. If the coil is within specification continue with Step 3.
3. Use a multimeter to check for continuity between connector X092 pin C and chassis ground. Flex the front frame
harness while making this check.
A. If no continuity to ground is found continue with Step 4.
B. If there is continuity to ground continue with Step 6.
4. Turn the key switch to the ON position. Use the InfoView - "Diagnose info" screen to manually power the dual
range solenoid. Use the multimeter to check for 12 volts between connector X092 pin C and chassis ground.
A. If 12 volts is not present continue with Step 5.
B. If 12 volts is found continue with Step 8.
5. Key switch to the ON position. Use the InfoView - "Diagnose info" screen to manually power the dual range
solenoid. Use the multimeter to check for 12 volts between connector X023 pin 21 and chassis ground.
A. If 12 volts is not present the open is between connector X023 and connector X020 J3-3 wire 762 white.
B. If 12 volts is read the open is between connector X023 and connector X092 wire 762 white. Locate the
open and repair.
6. Disconnect inline connector X023. Use the multimeter to check for continuity between connector X023 pin 21
and chassis ground.
A. If continuity is found the short to ground is in the front frame harness between connector X023 and con-
nector X020 J3-3 wire 762 white. Locate the short and repair.
B. If no continuity is found the short to ground is in the lower frame harness between connector X023 and
connector X092 wire 762 white. Locate the short and repair.
7. Erase the fault code and continue operation.
POWER TRAIN - TRANSMISSION Hydrostatic
2 4/7/2006
C.20.F / 86