Here's a link to a wiring diagram for an ignition system with dual (four connector) ballast resistor.
This comes from ramchargercentral.com and is apparently an image scanned from a reliable repair manual. (OEM or something like a thick Motor manual.)
If all else fails, go to the source. (Scratch that ... start with the source ... you'll save yourself a lot of heartburn and headaches.)
I've spent the last several days, almost nonstop, wading through the wonderful World Wide Web, trying to find definitive information. Never have I encountered a more confusing and contradictory collection of information ... at least not since I listen to a group of twelve- and thirteen-year-old boys explaining sexual intercourse.
I'm starting to get the impression, not yet confirmed, that the dual ballast resistor is associated with the hated Lean Burn system. Or, it's unique to "California-compliant" vehicles.
I'm starting to get very, very frustrated ...
