DTC Confirmation Procedure

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:

Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.

Do you have CONSULT?

YES

GO TO 2.

NO

GO TO 5.

With CONSULT

1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Start engine and let it idle at least 10 minutes.
   CAUTION: Never turn ignition switch to OFF during this step.
6. On CONSULT screen, select "ENGINE">>"Data Monitor">> following items.
   • ENG SPEED
   • VHCL SPEED SE
   • COOLAN TEMP/S
   • B/FUEL SCHDL
   • A/F SEN1 DIAG3 (B1)
   • A/F SEN1 DIAG3 (B2)
7. Drive the vehicle under the following conditions.
   CAUTION: Always drive vehicle at a safe speed.

   Item	Condition
   ENG SPEED	1, 000 - 1, 400 rpm
   VHCL SPEED SE	More than 58 km/h (37 MPH) constant speed
   COOLAN TEMP/S	More than 80 deg.C (176 deg.F)
   B/FUEL SCHDL	3 - 8 msec
   Gear position	D position

8. Keep the driving condition and check the items status of "Data Monitor" as follows.
   CAUTION: This procedure must be performed by two or more persons.
   NOTE: If "PRSNT" changed to "ABSNT", proceed to Component Function Check .

   DTC	Data monitor item	Status
   P014C P014D P015A P015B	A/F SEN1 DIAG3 (B1)	PRSNT
   P014E P014F P015C P015D	A/F SEN1 DIAG3 (B2)

Is "PRSNT" displayed on CONSULT screen?

YES

GO TO 3.

NO

Refer to Component Function Check .

With CONSULT

1. Keep the driving for 10 seconds or more.
2. Check the items status of "Data Monitor" as follows.
   NOTE: If "CMPLT" changed to "INCMP", proceed to Component Function Check .

   DTC	Data monitor item	Status
   P014C P014D P015A P015B	A/F SEN1 DIAG1 (B1)	CMPLT
   	A/F SEN1 DIAG2 (B1)
   P014E P014F P015C P015D	A/F SEN1 DIAG1 (B2)
   	A/F SEN1 DIAG2 (B2)

Is "CMPLT" displayed on CONSULT screen?

YES

GO TO 4.

NO

Proceed to Diagnosis Procedure .

With CONSULT

Check the "Self Diagnostic Result".

Is any DTC detected?

YES

Proceed to Diagnosis Procedure .

NO

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

NO

Confirmation after repair: INSPECTION END

With GST

1. Start engine and warm it up to normal operating temperature.
2. Select Service $01 with GST.
3. Calculate the total value of "Short term fuel trim" and "Long term fuel trim" indications.

Is the total percentage within +/-15%?

YES

GO TO 7.

NO

GO TO 6.

Check the following.

• Intake air leaks
• Exhaust gas leaks
• Incorrect fuel pressure
• Lack of fuel
• Fuel injector
• Incorrect PCV hose connection
• PCV valve
• Mass air flow sensor

Repair or replace malfunctioning part.

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.
4. Start engine and let it idle at least 10 minutes.
   CAUTION: Never turn ignition switch to OFF during this step.
5. Check that the engine coolant temperature reaches normal operating temperature.
6. Drive the vehicle for 10 seconds or more under the following conditions.
   CAUTION: Always drive vehicle at a safe speed.

   Item	Condition
   Engine speed	1, 000 - 1, 400 rpm
   Vehicle speed	More than 58 km/h (37 MPH) constant speed
   Gear position	D position

7. Check 1st trip DTC.

Is any DTC detected?

YES

Proceed to Diagnosis Procedure .

NO

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

NO

Confirmation after repair: INSPECTION END