Measuring condition

After warming-up
At idling

Fig 1: Crankshaft Position Sensor, Intake Camshaft Position Sensor (RH And LH) Waveform
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Fig 2: ECM I/O Signal - Wiring Diagram (B134)

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Fig 3: ECM I/O Signal - Wiring Diagram (B135)

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Fig 4: ECM I/O Signal - Wiring Diagram (B136)

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Fig 5: ECM I/O Signal - Wiring Diagram (B137)

Courtesy of SUBARU OF AMERICA, INC.