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 the engine and warm it up to the normal operating temperature.
   NOTE: Warm up the engine until "COOLAN TEMP/S" in "Data Monitor" of CONSULT reaches at least 70 deg.C (158 deg.F).
2. Turn the ignition switch OFF and cool the engine until the engine coolant temperature reaches 35 deg.C (95 deg.F) or less.
   CAUTION:

   • The difference between air temperature and engine coolant temperature must be 5 deg.C (9 deg.F) or less.
   • Do not turn ignition switch ON.
3. Turn ignition switch ON and wait at least 60 seconds.
4. Check 1st trip DTC.

Is DTC P0191 detected?

YES

Refer to DTC Diagnosis Procedure .

NO

To check malfunction symptom before repair: Refer to Inspection .

NO

Confirmation after repair: INSPECTION END