TM 10-3930-675-20-10011 00-1TOPHANDLER ELECTRONIC CONTROL UNIT (ECU) (791) TROUBLESHOOTING0011 00THIS WORK PACKAGE COVERSError Code 205 - Memory FailureError Code 220 - Internal Communication Failure, Con-nector 2Error Code 221 - Internal Communication Failure, Con-nector 2Error Code 250 - Internal Communication Failure, Con-nector 3Error Code 251 - Internal Communication Failure, Con-nector 3INITIAL SETUPReferencesTM 10-3930-675-10Current Supply (A34738.0200) (WP 0199 00-31)ECS Attachment (A34652.0200) (WP 0199 00-23)NOTE•Refer to WP 0004 00 for additional troubleshooting guidance, information, and illustrationsthat locate critical components.•Refer also to illustration at end of work package for component location.Table 1. Error Code 205 - Memory Failure Troubleshooting Procedures.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONError Code 205 - Memory FailurePlace ignition switch in OFFposition for 30 seconds and thenback in ON position.Replace ECU 791 if error codeis still present (WP 0076 00).Table 2. Error Code 220 - Internal Communication Failure, Connector 2 Troubleshooting Procedures.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONError Code 220 - Internal CommunicationFailure, Connector 2Place ignition switch in OFFposition for 30 seconds and thenback in ON position.Replace ECU 791 if error codeis still present (WP 0076 00).
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