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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Engine Controls And Fuel - 2.0L (LTG) - DTC P0010-DTC P0336) >> Diagnostic Information and Procedures >> DTC P0102 or P0103 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE:

    Circuit/System Testing must be performed before proceeding with Component Testing.

  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector:B75C Multifunction Intake Air Sensor
  3. Use the special tool:EL-38522 Variable Signal Generator
    • Voltage - 5 V
    • Frequency - 60 Hz
    • Duty Cycle - 50%
    • Red lead @ Signal circuit terminal 6
    • Black lead @ Ground
  4. Engine at Idle
  5. Verify the scan tool parameter:MAF Sensor = 4 950 to 5 050 Hz
    • If not between 4 950 and 5 050 Hz 

      Replace the component:K20 Engine Control Module

    • Go to next step: If between 4 950 and 5 050 Hz 
  6. Replace the component:B75C Multifunction Intake Air Sensor
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