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Home >> Lexus >> 2005 >> ES 330 >> Repair and Diagnosis >> Engine Performance >> System >> SFI System - Diagnostics >> DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306: Random/Multiple Cylinder Misfire Detected, Cylinder 1/2/3/4/5/6 Misfire Detected >> Confirmation Driving Pattern

Confirmation Driving Pattern

  1. Connect the hand-held tester to the DLC3.
  2. Record DTC and the freeze frame data.
  3. Set the hand-held tester to check mode (see CHECK MODE PROCEDURE  ).
  4. Read the value on the misfire counter for each cylinder when idling. If the value is displayed on the misfire counter, skip the following procedure of confirmation driving.
  5. Drive the vehicle several times with the engine speed, load and its surrounding range shown with ENGINE SPD, CALC LOAD in the freeze frame data or MISFIRE RPM, MISFIRE LOAD in the DATA LIST.

    If you have no hand-held tester, turn the ignition switch to OFF after the symptom is simulated once. Then repeat the simulation process again.

    HINT:

    In order to memorize the misfire DTC, it is necessary to drive with MISFIRE RPM, MISFIRE LOAD in the DATA LIST for the period of time in the chart below. Take care not to turn the ignition switch to OFF. This will switch the diagnosis system from check mode, to normal mode and all DTCs, freeze frame data and other data will be erased.

    ENGINE SPEED TIME GRAPH

    Engine Speed Time
    Idling 3 minutes 30 seconds or more
    1,000 rpm 3 minutes or more
    2,000 rpm 1 minute 30 seconds or more
    3,000 rpm 1 minute or more
  6. Check if there is misfire, DTC and the freeze frame data. Record the DTCs, freeze frame data and misfire counter data.
  7. Turn the ignition switch to OFF and wait at least 5 seconds.
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