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 11 V or more at idle.

GO TO 2.

1. Start engine and warm it up to normal operating temperature.
2. Let engine idle for 2 minutes.
3. Check 1st trip DTC.

Is 1st trip DTC detected?

YES

Refer to DTC Diagnosis Procedure .

NO

With CONSULT: GO TO 3.

NO

With GST: GO TO 7.

WITH CONSULT

1. Start engine and warm it up to normal operating temperature.
2. Select "A/F SEN1 (B1)" in "DATA MONITOR" mode with CONSULT.
3. Check "A/F SEN1 (B1)" indication.

Does the indication fluctuate around 2.2 V?

YES

GO TO 4.

NO

Refer to DTC Diagnosis Procedure .

1. Select "A/F SEN1 (B1) P1276" (for DTC P2252) of "A/F SEN1" in "DTC WORK SUPPORT" mode with CONSULT.
2. Touch "START".
3. When the following conditions are met, "TESTING" will be displayed on the CONSULT screen.

   ENG SPEED	1, 000 - 3, 200 rpm
   VHCL SPEED SE	More than 64 km/h (40 mph)
   B/FUEL SCHDL	1.0 - 8.0 msec
   Selector lever	D position

   If "TESTING" is not displayed after 20 seconds, retry from step 2.

   CAUTION: Always drive vehicle at a safe speed.

Is "TESTING" displayed on CONSULT screen?

YES

GO TO 5.

NO

Check A/F sensor 1 function again. GO TO 3.

Release accelerator pedal fully.

Which does "TESTING" change to?

COMPLETED

GO TO 6.

OUT OF CONDITION

Retry DTC CONFIRMATION PROCEDURE. GO TO 4.

Touch "SELF-DIAG RESULT".

Which is displayed on CONSULT screen?

YES

INSPECTION END

NO

Refer to DTC Diagnosis Procedure .

WITH GST

Perform component function check. Refer to Component Function Check .

Is the inspection result normal?

YES

INSPECTION END

NO

Refer to DTC Diagnosis Procedure .