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DTC P0103

  1. Connect the J 38522  to the vehicle. See Special Tools . Refer to Component Testing .
  2. Start the engine and observe the MAF Sensor parameter for a proper range of 4,950-5,025 Hz.
    • If the MAF Sensor parameter is not within the specified range, replace the ECM.
    • If the MAF Sensor parameter is within the specified range, replace the MAF sensor.
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