New Holland WorkMaster 50 Service Manual page 900

DTC 2D1-03-ECU internal failure - Error on R2S2 module
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 has detected an error on the R2S2 module (low-level chip driver for the power-
stage chips).
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
55.12 [55.DTC] / 179