Scan tool problem
07-10-2015, 04:22 AM
#1
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Scan tool problem Scan tool won't read trouble codes. I read on here to check the courtesy / cigarette lighter fuse. Is ther two fuses because only the aux outlet works not the cigarette lighter outlet.
07-11-2015, 01:03 PM
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Both fuses are good. But the scan tool still won't communicate with the ECM. Any ideas were to start. I know im going to be chasing electron's around.
07-12-2015, 12:41 AM
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07-12-2015, 09:54 PM
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Yes I tried mine and two others Advance Auto and a friend's new Snap On. I had looked into this 6 months ago and I wasn't getting 12 volts at one of the pins on the ALDL connector that supposed to " I think " power the scan tool to let the ECM communicate with the scan tool. Then the check engine went out until the other day. I guess like you said I need to get some diagrams and trace out some wires. I was just hoping there was maybe a common problem.