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Home >> Chevrolet >> 2018 >> Impala Premier, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls And Fuel - 2.5L (LCV) - Diagnostic Information And Procedures (P0340-P2635) And Symptoms) >> Diagnostic Information and Procedures >> DTC P2199 >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.

Multifunction Intake Air Sensor

  1. Ignition OFF, disconnect the harness connector at the B75C Multifunction Intake Air sensor.
    2. NOTE:

    A thermometer can be used to test the sensor off the vehicle.

  2. Test the IAT sensor 1 by varying the sensor temperature while monitoring the sensor resistance. Compare the readings with the Temperature Versus Resistance - Intake Air Temperature Sensor table for Hitachi Sensors. The resistance values should be in range of the table values.
    • If not within the specified range 

      Replace the B75C Multifunction Intake Air sensor

    • Go to next step: If within the specified range 
  3. All OK.

Multifunction Intake Air Sensor

  1. Test the IAT Sensor 2 by varying the sensor temperature while monitoring the air temperature with a thermometer. Compare the readings with the scan tool IAT Sensor 2 parameter. The values should be within 5%.
    • If not within the specified range 

      Replace the B75C Multifunction Intake Air sensor

    • Go to next step: If within the specified range 
  2. All OK.
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