New Holland WorkMaster 50 Service Manual page 754

4. Replace the rail pressure sensor B-9004.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is no longer active, return the machine to service.
B. If the fault is still active, check the ECU A-9000 for the appropriate software and re-flash, if necessary.
5. Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,
or broken wires. Verify that the connectors are fully installed. Flex the harnesses involved to reveal intermittent
breaks or shorts in the wiring concerned. Operate the machine while you monitor the display.
A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-
ered during the inspection or locate and repair the other than normal display condition and verify that the error
has been resolved.
B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue
operation.
Wiring harnesses - Electrical schematic sheet 05 – Engine Control Unit (ECU) engine connector
(55.100.DP-C.20.E.05)
Wiring harnesses - Electrical schematic sheet 06 – Engine control and fuel injection (55.100.DP-C.20.E.06)
Electrical systems - FAULT CODES
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