Quote:
Originally Posted by billbo911
Right, dedicated power for the PCM, forgot about that.
Now I'm even more confused. How could they have measured 12 volts on the PCM board, yet had an open fuse feeding it?
There must be some new magic in the control system for 2015.
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Well it is unlikely for the standard automotive fuse to fail in this manner but if a tiny portion of it is still connected it will flow enough current for a volt meter with a 10megaohm input impeadance to show "12v". However it won't flow enough current to power up the board. This can also happen with really bad connections. For this reason a volt meter is a poor tool to check for power on a load level circuit. You need something that will put some load on the circuit like a test light.
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