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Home >> Lexus >> 2021 >> RC F Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (8 Of 9) >> SFI System >> DTC P2118: Throttle Actuator Control Motor Current Range / Performance [09/2014 - ] >> Procedure

DTC P2118: Throttle Actuator Control Motor Current Range / Performance [09/2014 - ]: 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 / Gas Throttle / +BM Voltage.

      Powertrain > Engine > Data List 

      Tester Display
      +BM Voltage
    5. Read the value displayed on the Techstream.

      Result

      Result Proceed to
      Less than 4 V A
      11 to 14 V B

    Result: 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [09/2014 - ] 

    Result: 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (ECM - BATTERY, BODY GROUND) 
    GTY503148Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to ECM)
    1. Disconnect the ECM connectors.
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      F1-1 (+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
      F1-6 (ME01) - Body ground Always Below 1 Ω
      F4-1 (E1) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [09/2014 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR