Compression Ignition Addict
Join Date: Dec 2007
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The key is, without a WTS, you have to figure the PCM isn't running...
Start there. There should be power in the OBD-II port as well as the cig ltr.
If you have a performance chip, remove it. Check the PCM connector maybe. I'm going to assume you've done a Really Careful job with the fuses because that actually is the most likely reason for a non-running PCM. With a meter, Both sides of every fuse...
What yr is your truck?
What does relay #30 (is that right? my relays are 3 digit ie.303) say it's for?