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Home >> Toyota >> 2008 >> Avalon XLS >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Engine Control System (2GR-FE) - DTC P0607 - P2A03, DTC U0101 >> DTC P0607: Control Module Performance >> Inspection Procedure
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Inspection Procedure

  1. INSPECT FOR EXHAUST GAS LEAK 
    1. Allow the engine to idle.
    2. Check for exhaust gas leak around the HO2 sensor.

      OK: 

      No leak from the HO2 sensor. 

    NG: REPAIR OR REPLACE EXHAUST GAS LEAK POINT 

    OK: Go to next step 

  2. INSPECT HEATED OXYGEN SENSOR 
    Fig 1: Fuel-Trim And Rear Heated Oxygen Sensor Voltage Cross-Reference Chart
    G05386759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect Techstream to the DLC3.
    2. Turn the ignition switch to on (IG).
    3. Turn the tester ON.
    4. Start the engine and warm it up.
    5. Allow the engine to idle.
    6. Select the following menu items: Powertrain / Engine Active Test / Control the Injection Volume for A/F Sensor.
    7. Check the O2S B1S2 values when the A/F CONTROL (Control the Injection Volume for A/F Sensor) is -12.5% (Lean fuel-trim).
    8. Check the O2S B1S2 values when the A/F CONTROL (Control the Injection Volume for A/F Sensor) is 25% (Rich fuel-trim).

      Standard voltage 

      VOLTAGE SPECIFICATION CHART

      A/F CONTROL (Control the Injection Volume for A/F Sensor) O2S B1S2
      -12.5% Less than 0.2 V
      25% More than 0.8 V

    NG: REPLACE HEATED OXYGEN SENSOR  (See HEATED OXYGEN SENSOR )

    OK: Go to next step 

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P0607) 
    1. Connect Techstream to the DLC3.
    2. Turn the ignition switch on (IG).
    3. Turn the tester ON.
    4. Clear the DTC (See DTC CHECK / CLEAR ).
    5. Turn the ignition switch off and turn the tester off.
    6. Disconnect the tester.
    7. Disconnect the cable from the battery negative (-) terminal and wait for 1 minute.
    8. Connect the cable to the battery negative (-) terminal.
    9. Connect the tester to the DLC3.
    10. Turn the ignition switch on (IG).
    11. Turn the tester ON.
    12. Start the engine.
      Fig 2: Drive Pattern Chart
      G05386760Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    13. Perform the drive pattern.
      1. Warm up the engine.
      2. Accelerate the vehicle to 80 km/h (50 mph) and stop the vehicle.
      3. Drive the vehicle at 60 to 80 km/h (35 to 50 mph) for 5 minutes or more.
    14. Select the following menu items: Powertrain / Engine / Trouble Codes.
    15. Read DTCs.

      Result 

      RESULT CHART

      Result Proceed to
      No output A
      P0607 B

    B : REPLACE ECM  (See ECM )

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

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