E0037-03-Ccm1 5V Ref Voltage 3 Shorted To High Source (A.50.A.91.81 - G.30.B.54) - New Holland CX720 Repair Manual

E0037-03-CCM1 5V Ref Voltage 3 Shorted To High Source
(A.50.A.91.81 - G.30.B.54)
E0037-03 - CCM1 5V Ref Voltage 3 Shorted To High Source
Cause:
The circuit is shorted to a higher than normal voltage source.
Possible failure modes:
1. Circuit wiring shorted to 12 volts.
2. Controller internal failure (internal regulator failure).
Solution:
1. Enter the InfoView Monitor - "Diagnose info" screen.
Select "Supply" sub menu.
Select "CCM1 5 V Ref Voltage 3 in and check voltage range.
The proper voltage range is 4.5 - 5.5 volts
A. If the voltage reading is high out of range continue with Step 2.
B. If the voltage reading is within the proper limits, since the shorted wire may not be powered up at this time.
Continue the troubleshooting at Step 4.
2. The voltage reading on the InfoView is high. Disconnect the concave position sensor connector X176.
A. If the voltage drops back to the normal range the short is in the concave position sensor, or sensor wiring.
Replace the Concave Clearance Motor.
B. If the voltage remains high on InfoView display then continue with Step 3.
3. The voltage reading on the InfoView is high. Disconnect the lateral inclination sensor connector X170.
A. If the voltage drops back to the normal range the short is in the lateral inclination sensor, or sensor wiring.
Replace the sensor.
B. If the voltage remains high on InfoView display then the short circuit is somewhere between connectors
X170 and X176 on the main frame harness and connector X019 J2-31 on CCM1" wire 498, 451or 453
pink.
4. Visually inspect harness and connectors for damage, bent or dislocated pins, corroded terminals or broken
wires.
A. If no damage is found erase fault code and continue operation.
DISTRIBUTION SYSTEMS - ELECTRONIC SYSTEM
A.50.A / 82
2 4/7/2006