Input/output name

Fig 1: Engine Control Module I/O Signal Graph

Courtesy of SUBARU OF AMERICA, INC.

NOTE:

For measuring the waveforms of the crankshaft position sensor, use of oscilloscope function of DST-i or an ordinary oscilloscope is recommended.
If the oscilloscope function of the Subaru Select Monitor is used, the waveform of the crankshaft position sensor may be shown as in diagram (B). This is not a malfunction of the Subaru Select Monitor or crankshaft position sensor, because the unit of output from the crankshaft position sensor is smaller than the minimal measurement unit of the Subaru Select Monitor.

Fig 2: Engine Control Module I/O Signal - Circuit Diagram (1 Of 5)

Courtesy of SUBARU OF AMERICA, INC.

Fig 3: Engine Control Module I/O Signal - Circuit Diagram (2 Of 5)

Courtesy of SUBARU OF AMERICA, INC.

Fig 4: Engine Control Module I/O Signal - Circuit Diagram (3 Of 5)

Courtesy of SUBARU OF AMERICA, INC.

Fig 5: Engine Control Module I/O Signal - Circuit Diagram (4 Of 5)

Courtesy of SUBARU OF AMERICA, INC.

Fig 6: Engine Control Module I/O Signal - Circuit Diagram (5 Of 5)

Courtesy of SUBARU OF AMERICA, INC.