New Holland CX720 Repair Manual page 3690

E0001-03-Bin Covers Open Sensor Shorted To High Source
(K.60.B.95.82 - G.30.B.54)
E0001-03 - Bin Covers Open Sensor Shorted To High Source
Cause:
The bin covers open sensor (B47) circuit is shorted to a higher than normal voltage source.
Possible failure modes:
1. Sensor supply wiring shorted to 12 volts.
2. Controller internal failure (internal regulator failure).
Solution:
1. Enter the InfoView™ Monitor - Dealer Diagnostics screen.
Select "Clean Grain" sub menu.
Select "Bin Covers Open Sensor" and check voltage range.
The proper voltage for covers open - 5.6 - 7.3 volts
The proper voltage for covers closed - 0.5 - 5.6 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 5.
2. The voltage reading on the InfoView™ is high. Disconnect the covers closed proximity sensor connector X288
in the grain bin.
A. If the voltage drops to 7.3 - 9.0 volts the short is in the sensor, or sensor wiring. Replace the sensor.
B. If the voltage remains high on InfoView™ display continue with Step 3.
3. The voltage reading on the InfoView™ is high. Disconnect the connector X195 behind the grain bin.
A. If the voltage drops to 7.3 - 9.0 volts the short is in between connector X195 and connector X288 wire 435
yellow. Locate the short and repair.
B. If the voltage remains high on InfoView™ display continue with Step 4.
4. The voltage reading on the InfoView™ is high. Disconnect the main frame harness from the front frame harness
at connector X008.
A. If the voltage drops to 7.3 - 9.0 volts the short is in the main frame harness between connector X008 and
connector X195 wire 435 yellow.
B. If the voltage remains high on InfoView™ display the short circuit is somewhere between connector X008
and connector X20 J3-38 on CCM1 in the front frame harness wire 435 yellow.
5. Operate the grain bin doors in both directions and monitor the InfoView™ voltage readings.
A. If high voltage reading is viewed continue with Step 2 while operating grain bin doors.
B. If a high voltage reading cannot be generated erase the fault code and continue operation.
CROP PROCESSING - STORING AND HANDLING Grain storing
2 4/7/2006
K.60.B / 56