With SDT
- Start engine and warm it up to normal operating temperature.
- Turn ignition switch OFF and wait at least 10 seconds.
- Start engine and keep the engine speed between 3, 500 and 4, 000 RPM for at least 1 minute under no load.
- Let engine idle for 1 minute.
- Select "A/F SEN1(B1) P1278/P1279" of "A/F SEN1" in "DTC work support" mode with SDT.
- Touch "START".
If "COMPLETED" appears on SDT screen, go to step 10.
If "COMPLETED" does not appear on SDT screen, go to the following steps.
- After perform the following procedure, "TESTING" will be displayed on the SDT screen.
- Increase the engine speed up to between 4, 000 and 5, 000 RPM and maintain that speed for 10 seconds.
- Fully release accelerator pedal and then let engine idle for about 10 seconds.
If "TESTING" is not displayed after 10 seconds , refer to SDT Reference Value in Data list Mode .
- Wait for about 20 seconds at idle under the condition that "TESTING" is displayed on the SDT screen.
- Make sure that "TESTING" changes to "COMPLETED".
If "TESTING" changed to "OUT OF CONDITION" , refer to SDT Reference Value in Data list Mode .
- Make sure that "OK" is displayed after touching "DTC check".
If "NG" is displayed, go to [Diagnosis Procedure ].