TM 10-3930-675-20-10011 00-2TOPHANDLER ELECTRONIC CONTROL UNIT (ECU) (791) TROUBLESHOOTING - CONTINUED0011 00Table 3. Error Code 221- Internal Communication Failure, Connector 2 Troubleshooting Procedures.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONError Code 221 - 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).Table 4. Error Code 250 - Internal Communication Failure, Connector 3 Troubleshooting Procedures.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONError Code 250 - Internal CommunicationFailure, Connector 3Place ignition switch in OFFposition for 30 seconds and thenback in ON position.Replace ECU 791 if error codeis still present (WP 0076 00).Table 5. Error Code 251- Internal Communication Failure, Connector 3 Troubleshooting Procedures.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONError Code 251 - Internal CommunicationFailure, Connector 3Place 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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