Toyota
Nissan Versa
 Sedan Service Manual
Engine » Engine control system (EC) » P0111 IAT sensor
Component Function Check

1.CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR

  1. Turn ignition switch OFF.
  2. Disconnect mass air flow sensor harness connector.
  3. Check resistance between mass air flow sensor terminals as follows.

CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR

Is the inspection result normal?

YES >> Check intermittent incident. Refer to GI, "Intermittent Incident".

NO >> Proceed to EC, "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR

Check intake air temperature sensor. Refer toEC, "Component Inspection".

Is the inspection result normal?

YES >> Check intermittent incident. Refer to GI, "Intermittent Incident".

NO >> Replace mass air flow sensor (with intake air temperature sensor). Refer to EM, "Removal and Installation".

Component Inspection

1.CHECK INTAKE AIR TEMPERATURE SENSOR

  1. Turn ignition switch OFF.
  2. Disconnect mass air flow sensor harness connector.
  3. Check resistance between mass air flow sensor terminals as per the following.

CHECK INTAKE AIR TEMPERATURE SENSOR

Is the inspection result normal?

YES >> INSPECTION END

NO >> Replace mass air flow sensor (with intake air temperature sensor). Refer to EM, "Removal and Installation".

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