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Check Mass Air Flow Sensor Unit

WARNING: This page is about a different variant/trim than selected.
  1. Connect the terminal No. 3 to the battery positive terminal and the terminal No. 4 to the battery ground terminal, the circuit tester positive terminal to terminal No. 5 and the circuit tester ground terminal to terminal No. 4.
    Fig 1: Connecting Terminal No. 3 To Battery Positive Terminal And Terminal No. 4 To Battery Ground Terminal
    G06344673Courtesy of SUBARU OF AMERICA, INC.
  2. Check the voltage changes when air is blown to the mass air flow sensor unit in arrow direction.
Fig 2: Locating Mass Air Flow Sensor Unit
G06344674Courtesy of SUBARU OF AMERICA, INC.
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