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Home >> Toyota >> 2008 >> Highlander Hybrid >> Repair and Diagnosis >> Engine Performance >> Engine Control System (Hybrid) >> SFI System >> DTC P0607 Control Module Performance >> Inspection Procedure

Inspection Procedure

  1. CHECK FOR EXHAUST GAS LEAK 
    1. Allow the engine to idle.
    2. Check for exhaust gas leaks around the heated oxygen sensor.

    OK: No leaks from the heated oxygen sensor. 

    NG: REPAIR OR REPLACE EXHAUST GAS LEAK POINT  (See ON-VEHICLE INSPECTION )

    OK: Go to Next Step 

  2. INSPECT HEATED OXYGEN SENSOR 
    Fig 1: Fuel-Trim And HO2 Sensor Voltage Graph
    G05386759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Start the engine and warm it up.
    5. Allow the engine to idle.
    6. Select the following menu items: Powertrain / Engine and ECT Active Test / Control the Injection Volume for A/F Sensor.
    7. Check the O2S B1S2 values when the Control the Injection Volume for A/F Sensor is - 12.5% (Lean fuel-trim).
    8. Check the O2S B1S2 values when the Control the Injection Volume for A/F Sensor is 25% (Rich fuel-trim).

      Standard voltage 

    VOLTAGE SPECIFICATION

    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 the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTC (See DTC CHECK / CLEAR ).
    5. Turn the power switch to off and turn the Techstream off.
    6. Disconnect the Techstream.
    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 Techstream to the DLC3.
    10. Turn the power switch on (IG).
    11. Turn the Techstream on.
    12. Start the engine.
      Fig 2: Identifying Monitor Drive Pattern
      G05625557Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    13. Perform the drive pattern.
      1. Warm up the engine.
      2. Accelerate the vehicle until 80 km/h (50 mph) and stop the vehicle.
      3. Drive the vehicle by 60 to 80 km/h (35 to 50 mph) for 5 minutes or more.
    14. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.
    15. Read the DTCs.

    Result 

    RESULT CHART

    Result Proceed to
    No output A
    P0607 B

    B: REPLACE HYBRID VEHICLE CONTROL ECU  (See REMOVAL )

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

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