New Holland WorkMaster 50 Service Manual page 834

DTC 1D2-04-ECU internal failure - EEPROM read error
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 has detected an error during the last EEPROM write operation. The hardware
encapsulation of the ECU A-9000 checks each data block of the EEPROM and sets a status flag depending on if an
error is found or not found. These flags are processed every 20 milliseconds by the Diagnostic System Management
(DSM) and if the value is out of range, this fault will occur.
Solution:
1. Check the ECU A-9000 for the appropriate software and re-flash, if necessary.
A. If the fault has been resolved, return the machine to service.
B. If the fault has not been resolved, escalate an ASIST concern.
Electrical systems - FAULT CODES
47866583_ 02/12/2015
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