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International Automotive Technicians Network
Re: 1989 Winnebago PCM wiring diagram needed
Posted to Technical Discussion Forum on 9/17/2017

Now I understand your problem. Something is either shorted, rewired improperly or plugged in incorrectly somewhere.

With no diagrams I'd start asking if anything was recently replaced or fixed. 2nd thing I'd try is removing other relays temporarily, making s... Login to read more.