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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2GR-FKS) - Diagnostic Codes (6 Of 6) & Circuit Tests (1 Of 2) >> SFI System >> DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message [12/2019 - 10/2022] >> Procedure

DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message [12/2019 - 10/2022]: Procedure

  1. CHECK DTC OUTPUT (U1103-87) 
    1. Perform the Health Check using the GTS.
    2. Read the DTCs.

      Result

      Result Proceed to
      DTC U1103-87 is output A
      DTC U1103-87 and other DTCs are output B

      HINT: 

      If any DTCs other than U1103-87 are output, troubleshoot those DTCs first.

    Result: 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2022] 

    Result: 

    GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 09/2020]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2020 - 10/2021]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 10/2022]