I thought I saw on ALLDATA that the MIL light came out of the PCM.

But I dont see it. How does the check engine light get the signal?

I see that the PCM has 2 data wires. Class 2 Serial Data & ECM/PCM/VCM Class 2 Serial Data. I am assuming that the 2nd one is communication between those 3 modules, correct?

Im starting to thin out the wires that I dont need as I have the whole engine harness separated for each component.

Thanx