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Home >> Lexus >> 2019 >> LX 570 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (5 Of 7) >> SFI System >> DTC P2118: Throttle Actuator Control Motor Current Range / Performance [09/2015 - ] >> Procedure

DTC P2118: Throttle Actuator Control Motor Current Range / Performance [09/2015 - ]: Procedure

  1. READ VALUE USING TECHSTREAM (+BM VOLTAGE) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / +BM voltage.
    5. Read the value displayed on the Techstream.

      Standard Voltage

      11 to 14 V

    Result: 

    OK 

    CHECK FOR INTERMITTENT PROBLEMS 

    (Refer to CHECK FOR INTERMITTENT PROBLEMS [09/2015 - ] )

    Result: 

    NG 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (ECM - BATTERY, BODY GROUND) 
    1. Disconnect the ECM connector.
      GTY585486Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      C53-104 (+BM) - Body ground Always 11 to 14 V
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C53-18 (ME01) - Body ground Always Below 1 Ω
      C53-81 (E1) - Body ground Always Below 1 Ω

    Result: 

    OK 

    REPLACE ECM 

    (Refer to REMOVAL [09/2015 - ] )

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR