TM 10-3930-675-20-10027 00-10TRANSMISSION SPEED SENSORS TROUBLESHOOTING - CONTINUED0027 00Table 10. Error Code 658 - Output Speed Sensor Failure, Open Circuit or Short Circuit to BatteryTroubleshooting Procedures - Continued.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONError Code 658 - Output Speed Sensor Failure,Open Circuit or Short Circuit to Battery -Continued7. Check continuity betweentransmission ECU connectorpin 4 and connector X173 pin1 and between transmissionECU connector pin 62 andconnector X173 pin 2.a. If continuity is not present,repair or replace connectors(WP 0111 00). b. If wiring harness must bereplaced, notify SRA.8. Check voltage at connector760 pin 3, connector X173 pin3, and connector X174 pin 2.Voltage should be 20-25V.a. If voltage is as specified,replace output speed sensor(WP 0095 00).b. If voltage is not as specified,repair or replace connectors(WP 0111 00). c. If wiring harness must bereplaced, notify SRA.Table 11. Error Code 659 - Output Speed Sensor Failure, Short Circuit to Chassis Troubleshooting Procedures.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONError Code 659 - Output Speed Sensor Failure,Short Circuit to Chassis1. Remove cab transmission andsteering ECU panel cover andcheck transmission ECUconnector for properconnection (WP 0079 00).Connect loose or disconnectedconnector.2. Remove cab rear wall centerpanel cover and checkconnector X173 for properconnections.Connect loose or disconnectedconnectors.3. Move operator’s cab totransport position and removetransmission access covers(WP 0135 00).4. Check transmission electricalharness connector 760 forproper connection at outputspeed sensor.Connect loose or disconnectedconnectors.
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