Quote
The PT control circuit wire is white, and goes to position 28 in the center connector at the ecu, the only white wire on that connector. There are no intervening connectors in the circuit.


Ok. Thanks Eddy. I confirmed I do have continuity from ecu connector to PT connector.

In examining the ECU I noticed discoloration on the top, middle pin of the small connector slot. There is corrosion (blue) on several pins, but on this middle pin its dark and, though its not 100% clear, it looks burnt. could be rust though. Either way it seems worth tracing. I'm going to stare at the wiring diagram some more and see what that goes to. Hopefully ISC, then at least that would point to something broken!

Pics:

[urlhttps://lh4.googleusercontent.com/-pk0ygYq4Q1I/UbahPO2ws0I/AAAAAAAADIc/F_DH-zgoeiA/w405-h720-no/IMG_20130610_225955_837.jpg]connector burnt?[/url]

[Linked Image]

Last edited by mrray; 06/11/13 05:15 AM.