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International Automotive Technicians Network
Re: AC locked out by ECM
Posted to Technical Discussion Forum on 7/8/2009

Hi Scott,

Hook up your scan tool and see if when you turn the steering wheel from stop to stop your PS pid changes state. If not disconnect the PS pressure swicth and see if your A/C works then. If so, replace the PS pressure switch.

You should be able to ... Login to read more.