Turboblackbird97
New Member
2005 jeep liberty 3.7 no ABS base model. I have communication with PCM alone. No comm with any other module. All pci com lines are not shorted to - or +. Unplugged each module on the line with no change. Powers and grounds to each is also present. Checked all continuity between modules with a load in between -A-ok SCI lines were all checked the same way. Jeep starts and runs fine. Used scope on PCI lines separately constant com with 7 volts on line. HELP! . .
