DTC Confirmation Procedure

Do you have CONSULT?

YES

GO TO 2.

NO

GO TO  7.

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Do not hold engine speed for more than the specified minutes below.

GO TO 3.

With CONSULT

1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT.
2. Start engine and warm it up to the normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Turn ignition switch OFF and wait at least 10 seconds.
6. Start engine and keep the engine speed between 3, 500 and 4, 000 RPM for at least 1 minute under no load.
7. Let engine idle for 1 minute.
8. Make sure that "COOLANT TEMP/S" indicates more than 70 deg.C (158 deg.F).

   If not, warm up engine and go to next step when "COOLANT TEMP/S" indication reaches 70 deg.C (158 deg.F).

9. Open engine hood.
10. Select "DTC & SRT CONFIRMATION" then "SRT WORK SUPPORT" mode with CONSULT.
11. Rev engine up to about 2, 000 RPM and hold it for 3 consecutive minutes then release the accelerator pedal completely.
12. Check the indication of "CATALYST".

Which is displayed on CONSULT screen?

CMPLT

GO TO  6.

INCMP

GO TO 4.

1. Wait 5 seconds at idle.
2. Rev engine up to about 2, 000 RPM and maintain it until "INCMP" of "CATALYST" changes to "CMPLT" (It will take approximately 5 minutes).

Does the indication change to "CMPLT"?

YES

GO TO  6.

NO

GO TO 5.

1. Stop engine and cool it down to less than 70 deg.C (158 deg.F).
2. Perform DTC CONFIRMATION PROCEDURE again.

GO TO  3.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

Proceed to Diagnosis Procedure .

NO

INSPECTION END

Without CONSULT

1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3, 500 and 4, 000 RPM for at least 1 minute under no load.
4. Let engine idle for 1 minute.
5. Open engine hood.
6. Check the voltage between ECM harness connector terminals under the following condition.

   DTC	ECM			Condition	Voltage
   	Connector	+	-
   		Terminal	Terminal
   P0420	F142	110 [HO2S2 (bank 1)]	99	Keeping engine speed at 2, 500 RPM constant under no load	The voltage fluctuation cycle takes more than 5 seconds. 1 cycle: 0.6 - 1.0 -> 0 - 0.3 -> 0.6 - 1.0
   P0430		98 [HO2S2 (bank 2)]

Is the inspection result normal?

YES

To check malfunction symptom before repair: Refer to Intermittent Incident .

YES

Confirmation after repair: INSPECTION END

NO

Proceed to Diagnosis Procedure .