It's GM. From what I've been able to find, it shows as 1995-2005. It's used in pickups, van, etc.
I was able to find this:
View attachment 1715730178
It says (A) is 12v, (B) is ignition signal, (C) is engine ground, and (D) in switching signal.
Part 2 -How to Test a Misfire / No Spark-No Start Condition (4.3L, 5.0L, 5.7L 96-04)
Does that mean (A) and (D) go to the coil, and (B) and (C) go to the distributor pickup?
