Confirmation Driving Pattern

Wiring Diagram:

CONFIRMATION DRIVING PATTERN #1
a. Connect the LEXUS hand-held tester or OBD II scan tool to the DLC3.
b. Record DTC and the freeze frame data.
c. Use the LEXUS hand-held tester to set to the check mode.
d. Drive the vehicle several times with the engine speed, load and its surrounding range shown with the ENGINE SPD, CALC LOAD in the freeze frame data or the MISFIRE RPM, MISFIRE LOAD in the data list.
If you have no LEXUS hand-held tester, turn the ignition switch OFF after the symptom is simulated the first time. Then repeat the simulation process again.






HINT: In order to memorize DTC of misfire, it is necessary to drive around the MISFIRE RPM, MISFIRE LOAD in the data list for the following period of time.

e. Check whether there is misfire or not by monitoring DTC and the freeze frame data. After that, record them.
f. Turn the ignition switch OFF and wait at least 5 seconds.

Wiring Diagram:

CONFIRMATION DRIVING PATTERN #2
1. Connect the LEXUS hand-held tester to the DLC3.
2. Switch the LEXUS hand-held tester from the normal mode to the check mode.
3. Start the engine and warm it up with all the accessory switches OFF.
4. Drive the vehicle at 50 - 65 km/h (31 - 40 mph) for 1 - 3 min. to warm up the heated oxygen sensor
5. Let the engine idle for 1 min.
6. Perform steps (3) to (5) 3 times.

HINT: If a malfunction exists, the MIL will light up during step (6).

NOTE: If the conditions in this test are not strictly followed, detection of the malfunction will not be possible.
If you do not have a LEXUS hand-held tester, turn the ignition switch OFF after performing steps (3) to (6), then perform steps (3) to (6) again.