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Deere 850K Codes: TCU 907.01, 907.00

Tyler Cohrs ยท 2022-07-14 14:48

Have a 2015 Deere 850K dozer giving me two TCU codes. 907.01 and 907.00 which appears to be "Left MTR SPD sensor circuit fault". Machine seem to run and operate how it should. Any ideas on what this could be or things to check? Thanks

Replies3
  1. #1mg23612022-07-15 04:36

    First we need to start with a complete machine serial number.

  2. #2Tyler Cohrs2022-07-15 16:39
  3. #3mg23612022-07-16 05:12

    907.00 indicates an open in the R071 Black Return wire, or a faulty sensor. 907.01 indicates an open in the P074 Red wire, or a faulty speed sensor. That is because the machine will default to a preprogrammed value so it can be used. You just loose auto-tracking.