DTC Confirmation Procedure
- PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
GO TO 2.
- PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A
- 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 2 minutes.
- Check 1st trip DTC.
Is 1st trip DTC detected?
YES
Refer to DTC Diagnosis Procedure .
NO
With CONSULT: GO TO 3.
NO
Without CONSULT: GO TO 5.
- PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B NOTE: For better results, perform "DTC WORK SUPPORT" at a temperature of 0 to 30 deg. C (32 to 86 deg. F).
- Turn ignition switch ON and select "DATA MONITOR" mode of "ENGINE" using CONSULT.
- 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.
- Make sure that "COOLAN TEMP/S" indication is more than 70 deg. C (158 deg. F).
If not, warm up engine and go to next step when "COOLAN TEMP/S" indication reaches 70 deg. C (158 deg. F).
- Open engine hood.
- Select "HO2S2 (B1) P1146" of "HO2S2" in "DTC WORK SUPPORT" mode of "ENGINE" using CONSULT.
- Follow the instruction of CONSULT.NOTE: It will take at most 10 minutes until "COMPLETED" is displayed.
- Touch "SELF-DIAG RESULT".
Which is displayed on CONSULT
OK
INSPECTION END
NG
Refer to DTC Diagnosis Procedure .
CAN NOT BE DIAGNOSED
GO TO 4.
- PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B AGAIN
- Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
- Perform DTC confirmation procedure again.
GO TO 3.
- PERFORM COMPONENT FUNCTION CHECK FOR MALFUNCTION B
Perform component function check. Refer to Component Function Check .
NOTE: Use component function check to check the overall function of the heated oxygen sensor 2 circuit. During this check, a 1st trip DTC might not be confirmed.Is the inspection result normal?
YES
INSPECTION END
NO
Refer to DTC Diagnosis Procedure .