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Home >> Chevrolet >> 2003 >> Venture Base, Van Cargo Extended >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0103: MAF Sensor Circuit - High Frequency >> Test Description

Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 3 -  This step tests for Electromagnetic Interference (EMI) on the signal circuit of the MAF sensor. A frequency reading with the MAF sensor disconnected indicates an EMI related fault or a poor connection. Disconnecting the MAF sensor may set additional related DTCs.
  2. 4 -  This step will determine if incorrect harness routing has caused this DTC to set.
  3. 5 -  This step will determine if water intrusion has caused this DTC to set.

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