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Home >> Lexus >> 2015 >> RC 350 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2GR-FSE) - Diagnostic Codes (4 Of 5) >> SFI System >> DTC P2118: Throttle Actuator Control Motor Current Range / Performance [09/2014 - 11/2017] >> Procedure
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DTC P2118: Throttle Actuator Control Motor Current Range / Performance [09/2014 - 11/2017]: 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 and ECT / 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 - 11/2017] 

    Result: 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (ECM - BATTERY, BODY GROUND) 
    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
      F2-5 (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 - 11/2017] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR