October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Check Mass Air Flow Sensor Unit
- 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.
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- Check the voltage changes when air is blown to the mass air flow sensor unit in arrow direction.
Courtesy of SUBARU OF AMERICA, INC.