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International Automotive Technicians Network
Re: 2003 Trailblazer, No start, DTC P1515
Posted to Technical Discussion Forum on 5/2/2007

Just curious do you have a scan tool that will communicate with this vehicle for data stream? No generic won't cut it on this one. Do you have access to wiring diagrams and correct info as to how this system functions? If not replacing the throttle actuator is... Login to read more.