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Home >> Toyota >> 2009 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Engine Control System (1AR-FE) - DTC P0705 - P2A00, DTC U0101) >> DTC P2014 Intake Manifold Runner Position Sensor/Switch Circuit (Bank 1); DTC P2016 Intake Manifold Runner Position Sensor/Switch Circuit Low (Bank 1); DTC P2017 Intake Manifold Runner Position Sensor/Switch Circuit High (Bank 1) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.

HINT:

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

  1. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE TUMBLE CONTROL VALVE) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON and turn the Techstream on.
    3. Enter the following menus: Powertrain/Engine/Active Test/Control the IAC Duty Ratio/All Data/IAC Sensor Voltage.
    4. Check the output voltage of IAC Sensor Voltage while changing Control the IAC Duty Ratio from -100 to 100% (or from 100 to -100%) using the Techstream.

      OK: 

      The voltage output of IAC Sensor Voltage remains between 0.2 and 4.8 V while Control the IAC Duty Ratio is changed from -100 to 100% (or from 100 to -100%). 

      HINT: 

      IAC SENSOR VOLTAGE CHART

      Control the IAC Duty Ratio operation IAC Sensor Voltage (Normal) Suspected Failure Area
      • IAC1 circuit shorted
      • VCIA circuit open
      • VCIA and IAC1 circuit short-circuited
      • IAC1 circuit open
      • EIA1 circuit open
      • Sensor malfunction
      -100% 0.2 to 1.0 V Remain below 0.2 V Remain higher than 4.8 V Other than the voltage in the 2 columns on the left
      100% 3.2 to 4.8 V Remain below 0.2 V Remain higher than 4.8 V

      NG: Go to step  3

      OK: Go to next step 

  2. CHECK WHETHER DTC OUTPUT RECURS (DTC P2014, P2016 AND/OR P2017 ARE OUTPUT AGAIN) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON and turn the Techstream on.
    3. Clear the DTCs (See DTC CHECK/CLEAR ).
    4. Turn the ignition switch off.
    5. Turn the ignition switch to ON and turn the Techstream on.
    6. Enter the following menus: Powertrain/Engine/Trouble Codes.
    7. Read the DTCs.

      Result 

      RESULT CHART

      Result Proceed to
      P2014, P2016 and/or P2017 are output again A
      DTC is not output B

      B: CHECK FOR INTERMITTENT PROBLEMS  (See CHECK FOR INTERMITTENT PROBLEMS )

      A: REPLACE ECM  (See REMOVAL )

  3. CHECK HARNESS AND CONNECTOR (INTAKE AIR CONTROL VALVE ACTUATOR - ECM) 
    1. Disconnect the ECM connector.
    2. Disconnect the intake air control valve actuator connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard Resistance (Check for Open) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B50-16 (VCIA) - d4-3 (VDD) Always Below 1 Ω
      B50-18 (IAC1) - d4-1 (OUT) Always Below 1 Ω
      B50-17 (EIA1) - d4-2 (GND) Always Below 1 Ω

      Standard Resistance (Check for Short) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B50-16 (VCIA) or d4-3 (VDD) - Body ground Always 10 kΩ or higher
      B50-18 (IAC1) or d4-1 (OUT) - Body ground Always 10 kΩ or higher
    4. Reconnect the intake air control valve actuator connector.
    5. Reconnect the ECM connector.

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 1: Identifying Intake Air Control Valve Actuator And ECM Connector
      G06111110Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  4. INSPECT ECM (VCIA VOLTAGE) 
    1. Disconnect the intake air control valve actuator connector.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value (s) in the table below.

      Standard Voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Switch Condition Specified Condition
      d4-3 (VDD) - Body ground Ignition switch ON 4.5 to 5.5 V
    4. Reconnect the intake air control valve actuator connector.

      NG: REPLACE ECM  (See REMOVAL )

      Fig 2: Identifying Intake Air Control Valve Actuator Connector
      G06111111Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  5. REPLACE INTAKE AIR CONTROL VALVE ACTUATOR (FOR TUMBLE CONTROL VALVE) 
    1. Replace the intake air control valve actuator (See INTAKE AIR CONTROL VALVE ACTUATOR (FOR TCV) ).
  6. CHECK WHETHER DTC OUTPUT RECURS (DTC P2014, P2016 AND/OR P2017 ARE OUTPUT AGAIN) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON and turn the Techstream on.
    3. Clear the DTCs (See DTC CHECK/CLEAR ).
    4. Turn the ignition switch off.
    5. Turn the ignition switch to ON and turn the Techstream on.
    6. Enter the following menus: Powertrain/Engine/Trouble Codes.
    7. Read the DTCs.

      Result 

      RESULT CHART

      Result Proceed to
      P2014, P2016 and/or P2017 are output again A
      DTC is not output B

      B: REPAIR COMPLETED 

      A: REPLACE ECM  (See REMOVAL )

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