DTC Confirmation Procedure

1. 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 2.

1. 1. Clear the mixture ratio self-learning value. Refer to Description .
   2. Start engine.

Is it difficult to start engine?

YES>>

GO TO 3.

NO>>

GO TO 4.

1. If it is difficult to start engine, the fuel injection system has a malfunction, too. Crank engine while depressing accelerator pedal.
   NOTE: When depressing accelerator pedal three fourths (3/4) or more, the control system does not start the engine. Do not depress accelerator pedal too much.

Does engine start?

YES>>

Proceed to Diagnosis Procedure .

NO>>

Check exhaust and intake air leak visually.

1. 1. Keep engine idle for at least 5 minutes.
   2. Check 1st trip DTC.

Is DTC P0174 detected?

YES>>

Proceed to Diagnosis Procedure .

NO>>

GO TO 5.

1. 1. Turn ignition switch OFF and wait at least 10 seconds.
   2. Start engine.
   3. Maintain the following conditions for at least 10 consecutive minutes. Hold the accelerator pedal as steady as possible.

      VHCL SPEED SE

      50 - 120 km/h (31 - 75 MPH)

      CAUTION:

      Always drive vehicle at a safe speed.

   4. Check 1st trip DTC.

Is DTC P0174 detected?

YES>>

Proceed to Diagnosis Procedure .

NO>>

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

NO>>

Confirmation after repair: INSPECTION END