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Re: AC blocked, appeared to be a module lock
Posted to Technical Tips Forum on 3/15/2018

BTW, the most common OAT problem is the X100 connector. The OAT wiring goes through the forward lamp harness connector, X100 behind the LF headlamp. There's a lot of water splash in this area and it's not uncommon to open this connector and see green terminals... Login to read more.