DTC Diagnosis Procedure

1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC confirmation procedure. Refer to DTC Description .
4. Check 1st trip DTC.

Is the 1st trip DTC P1423 or P1424 displayed again?

YES

GO TO 2.

NO

INSPECTION END

Replace ECM. Refer to ECM : Removal & Installation .

INSPECTION END