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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 213 (Engine Controls - Self-Diagnostics - 3.0L) >> Diagnostic Tests >> DTC P0103: Mass Airflow Sensor Circuit - High Signal/Frequency >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refers to the step numbers on the diagnostic procedures.

  1. 4 -  This step will determine if any mechanical faults have caused this DTC to set.
  2. 6 -  A very small amount of voltage will appear on this circuit when the ECM is operational. This is considered normal.
  3. 7 -  The measured resistance of the circuit will increase when the ECM is operational. This is considered normal.
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