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Home >> Toyota >> 2014 >> Highlander XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (SFI System [1AR-FE] - Diagnostic Codes - (Except Hybrid) (4 Of 8)) >> SFI System >> DTC U0101: Lost Communication with TCM [12/2013 - 11/2016] >> Procedure

DTC U0101: Lost Communication with TCM [12/2013 - 11/2016]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC U0101) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
    5. Read the DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      DTC U0101 is output A
      DTC U0101 and other DTCs are output B

      HINT: 

      If any DTCs other than U0101 are output, troubleshoot those DTCs first.

    Result:  1

    A 

    REPLACE ECM. Refer to  REMOVAL [12/2013 - ] 

    Result:  2

    B 

    GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2013 - 08/2014]  Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2014 - 11/2015]  Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2015 - 11/2016] 

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