S15 ECM Diagram
Here's the S15 ECM diagram for SR20DE and SR20DET. You can see that the VSS signal comes in at pin 32. The signal comes from pin 31 on the cluster (not shown). The next table shows this waveform.
Here's the S15 ECM diagram for SR20DE and SR20DET. You can see that the VSS signal comes in at pin 32. The signal comes from pin 31 on the cluster (not shown). The next table shows this waveform.