Test for power at the source from the PCM Power Relay (K163)
(Green/White wire) (check for voltage difference between here and a known ground... should be voltage present...)
Test for a ground at the Ground distribution wire
(Black/White wire) (check resistance from here to a known ground) (should be VERY little[1-10 OHMS] to NO resistance.. )
Test for an "open" signal(when above opening RPM's) at either the black/blue wire, or the brown/white (not sure, off hand, which it is.)
Ray
