E0295-04-Ccm3 5V Ref Voltage 1 Shorted To Low Source (A.50.A.91.83 - G.30.B.53) - New Holland CX720 Repair Manual

E0295-04-CCM3 5V Ref Voltage 1 Shorted to Low Source
(A.50.A.91.83 - G.30.B.53)
E0295-04 - CCM3 5V Ref Voltage 1 Shorted to Low Source
Cause:
The CCM3 5V Reference Voltage 1 circuit is shorted to a lower than normal source.
Possible failure modes:
1. CCM3 5V Reference Voltage 1 wiring is shorted to ground.
2. Controller internal failure (internal regulator failure).
Solution:
1. Enter InfoView™ monitor - "Diagnose info" screen.
Select "CCM3" sub menu.
Select "CCM3 5V Ref Voltage 1" and check voltage range.
The proper voltage is 4.5 - 5.5 volts.
A. If the voltage reading is low, out of range (<4.5 volts), continue with Step 2.
B. If the voltage reading is within proper limits. The condition that generated the fault is not present at this
time. Continue diagnosis with step 3.
2. Disconnect connector X014 from the bottom of the CCM3 module. Verify that the connector was fully installed.
Inspect the terminals and wires at the connector for bent pins, pushed back or corroded terminals or damaged
wires. Thoroughly clean and dry the connector and reinstall it.
A. If the voltage reading remains low, out of range (<4.5 volts), there is an internal fault with the CCM3
module. If there are no other faults with the circuits attached to this module, it should be possible to
continue operation without replacing the module. If fault code E0293-04 CCM3 5V Ref Voltage 3 is also
present and can not be corrected, then the module will need to be replaced.
B. If the voltage reading is within proper limits, continue with step 3.
3. Operate the machine while monitoring Infoview™ monitor.
A. If no high out of range readings are indicated, erase the fault code and continue operation.
DISTRIBUTION SYSTEMS - ELECTRONIC SYSTEM
A.50.A / 119
2 4/7/2006