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Home >> Toyota >> 2006 >> Corolla CE, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System (SFI) (2ZZ-GE) - Diagnostics) >> DTC P2646, P2647: OCV For VVTL Open/Closed Malfunction (Bank 1) >> Inspection Procedure >> OBD II scan tool (excluding the hand-held tester):

OBD II scan tool (excluding the hand-held tester):

WARNING: This page is about a different variant/trim than selected.
  1. INSPECT ENGINE OIL PRESSURE SWITCH ASSY (FOR VVTL) 
    1. Disconnect the oil pressure switch for VVTL (Variable Valve Timing and Lift) connector.
    2. Turn the ignition switch to OFF.
    3. Check the resistance between the oil pressure switch and body ground.

      Standard: 10 kΩ or higher 

    4. Reconnect the oil pressure switch
    1. NG: REPLACE ENGINE OIL PRESSURE SWITCH ASSY 
    2. OK: GO TO NEXT STEP 
  2. CHECK HARNESS AND CONNECTOR (OIL PRESSURE SWITCH FOR VVTL - ECM) 
    1. Disconnect the 02 oil pressure switch connector.
    2. Disconnect the E5 ECM connector.
    3. Check the resistance.

      Standard (Check for open): 

      OIL PRESSURE SWITCH FOR VVTL - ECM RESISTANCE (CHECK FOR OPEN)

      Tester Connections Specified Conditions
      Oil pressure switch (O2-1) - OSW (E5-31) Below 1 Ω

      Standard (Check for short): 

      OIL PRESSURE SWITCH FOR VVTL - ECM RESISTANCE (CHECK FOR SHORT)

      Tester Connections Specified Conditions
      Oil pressure switch (O2-1) or OSW (E5-31) - Body ground 10 kΩ or higher
      Fig 1: Disconnecting E5 ECM Connector
      G02599463Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Reconnect the ECM connector.
    5. Reconnect the oil pressure switch connector.
      Fig 2: Identifying Terminals Of Oil Pressure Switch Connector
      G02599464Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: GO TO NEXT STEP 
  3. CHECK OIL CONTROL VALVE FILTER 
    1. Remove the OCV filter.
    2. Check the OCV filter.
      1. Confirm that the filter is not contaminated.
    3. Place a new gasket on the bolt, and reinstall the filter.

      Torque: 29 N.m (300 kgf.cm, 22 ft.lbf) 

      Fig 3: Removing OCV Filter
      G02599465Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE OIL CONTROL VALVE FILTER 
    2. OK: GO TO NEXT STEP 
  4. INSPECT OPERATION OF OCV (FOR VVTL) 
    1. Start the engine.
    2. Check the engine speed twice in each of conditions (1) and (2), as described below:
      1. Disconnect the C2 camshaft timing OCV connector.
      2. Apply the positive battery voltage between the terminals of the camshaft timing OCV.

      Result: 

      OCV (FOR VVTL) INSPECTION RESULT

      Condition (1) Condition (2) Proceed To
      Normal engine speed Engine idles roughly or stalls A
      Any results other than above Any results other than above B
      Fig 4: Identifying Terminals Of C15 Camshaft Timing Oil Control Valve Connector
      G02599466Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Reconnect the camshaft timing OCV connector.
    1. B: REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSY 
    2. A: GO TO NEXT STEP 

      REPLACE ECM (See  ECM (1ZZ-FE/2ZZ-GE) REPLACEMENT  ) 

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