Confirmation Procedure

If DTC P0451 is displayed with DTC P010A, P0452, or P0453, first perform the trouble diagnosis for DTC P010A, P0452, or P0453.

Is DTC P010A, P0452, or P0453 detected?

YES

Perform diagnosis of applicable.

• DTC P010A? Refer to DTC Description .
• DTC P0452? Refer to DTC Description .
• DTC P0453? Refer to DTC Description .

NO

GO TO 2.

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.

GO TO 3.

1. Turn ignition switch ON.
2. Check 1st trip DTC.

Is 1st trip DTC detected?

YES

Refer to DTC Diagnosis Procedure .

NO

To check malfunction symptom before repair: Refer to Inspection .

NO

Confirmation after repair: INSPECTION END