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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 42 (Engine Control System (1AR-FE) (Diagnostic Codes (P1604 - U0101) & Circuit Tests)) >> SFI System >> DTC P2004: Intake Manifold Runner Control Stuck Open (Bank 1); DTC P2006: Intake Manifold Runner Control Stuck Closed (Bank 1) >> Procedure

DTC P2004: Intake Manifold Runner Control Stuck Open (Bank 1); DTC P2006: Intake Manifold Runner Control Stuck Closed (Bank 1): Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2004 OR P2006) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Trouble Codes.
    5. Read the DTCs.

      Result

      Result Proceed to
      DTC P2004 or P2006 is output A
      P2004 or P2006 and other DTCs are output B

      HINT: 

      If any DTCs other than P2004 or P2006 are output, troubleshoot those DTCs first.

    B → See step   6 

    A: Go to next step 

  2. INSPECT INTAKE AIR CONTROL VALVE ACTUATOR (FOR TUMBLE CONTROL VALVE) 
    1. Inspect the intake air control valve actuator, refer to INSPECTION .

    NG → See step   10 

    OK: Go to next step 

  3. INSPECT INTAKE MANIFOLD (TUMBLE CONTROL VALVE OPERATION) 
    1. Inspect the intake manifold, refer to ON-VEHICLE INSPECTION - Step 3 .

    NG → See step   7 

    OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (ECM - INTAKE AIR CONTROL VALVE ACTUATOR) 
    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 Condition Specified Condition
      B51-34 (IA1-) - d4-4 (M-) Always Below 1 Ω
      B51-33 (IA1+) - d4-5 (M+) Always Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Condition Specified Condition
      B51-34 (IA1-) or d4-4 (M-) - Body ground Always 10 kΩ or higher
      B51-33 (IA1+) or d4-5 (M+) - body ground Always 10 kΩ or higher
    4. Reconnect the ECM connector.
    5. Reconnect the intake air control valve actuator connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2004 OR P2006) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Clear the DTCs, refer to DTC CHECK / CLEAR .
    5. Turn the ignition switch off.
    6. Turn the ignition switch to ON and turn the Techstream on.
    7. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
    8. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
    9. Read the pending DTCs.

      Result

      Result Proceed to
      DTC P2004 or P2006 is output A
      DTC is not output B

    B → See step   8 

    A → See step   9 

  6. GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART 
  7. REPLACE INTAKE MANIFOLD. Refer to  REMOVAL 
  8. CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS 
  9. REPLACE ECM. Refer to  REMOVAL 
  10. REPLACE INTAKE AIR CONTROL VALVE ACTUATOR (FOR TUMBLE CONTROL VALVE). Refer to  REMOVAL 
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