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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Immobilizer System - Diagnostic Codes & Symptom Tests - (Hybrid) >> Immobilizer System >> DTC B2799: Engine Immobilizer System Malfunction [02/2014 - 11/2016] >> Procedure

DTC B2799: Engine Immobilizer System Malfunction [02/2014 - 11/2016]: Procedure

  1. REGISTER ECU COMMUNICATION ID 
    1. Register the ECU communication ID.

      HINT: 

      Refer to Registration.

      Refer to REGISTRATION [02/2014 - 11/2016]

    Result: 

    NEXT 

  2. CLEAR DTC 
    1. Clear the DTCs.

      Powertrain > Hybrid Control > Clear DTCs 

    Result: 

    NEXT 

  3. CHECK FOR DTC 
    1. Perform "DTC Output Confirmation Operation" procedure.
    2. Check for DTCs.

      Powertrain > Hybrid Control > Trouble Codes 

      OK

      B2799 is not output.

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    END (COMMUNICATION ID REGISTRATION WAS DEFECTIVE) 

    Result:  2

    NG 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - POWER MANAGEMENT CONTROL ECU) 
    1. Disconnect the F11 certification ECU (smart key ECU assembly) connector.
    2. Disconnect the F16 power management control ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F11-19 (EFIO) - F16-29 (IMI) Always Below 1 Ω
      F11-18 (EFII) - F16-28 (IMO) Always Below 1 Ω
      F11-19 (EFIO) or F16-29 (IMI) - Body ground Always 10 kΩ or higher
      F11-18 (EFII) or F16-28 (IMO) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  1

    OK 

    See step  5

  5. REPLACE POWER MANAGEMENT CONTROL ECU 
    1. Temporarily replace the power management control ECU with a new one.

      Refer to REMOVAL [02/2014 - 11/2016]

    Result: 

    NEXT 

  6. CLEAR DTC 
    1. Clear the DTCs.

      Powertrain > Hybrid Control > Clear DTCs 

    Result: 

    NEXT 

  7. CHECK FOR DTC 
    1. Perform "DTC Output Confirmation Operation" procedure.
    2. Check for DTCs.

      Powertrain > Hybrid Control > Trouble Codes 

      OK

      B2799 is not output.

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    END (POWER MANAGEMENT CONTROL ECU WAS DEFECTIVE) 

    Result:  2

    NG 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [02/2014 - 11/2016]