Buell 2003XB9S Service Manual page 392

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TROUBLE CODES 52, 53, 54 AND 55
GENERAL
ECM Failure
All of the following codes indicate a failure which requires
replacement of the ECM. See
MODULE.
Code 52 - RAM failure.
Code 53 - ROM failure.
Code 54 - EE PROM failure.
Code 55 - Microprocessor failure.
NOTE
Dealership technicians filing warranty claims should use job/
time code 7913 for all Code 52, 53, 54 and 55 ECM replace-
ments.
4.29 ELECTRONIC CONTROL
2003 Buell XB9S: Fuel System
4.27
4-83