Abstract: A diagnostic testing apparatus for testing an automotive IAC motor normally controlled by pulse signals from the electronic control module (ECM) of an automotive electrical system, which apparatus is coupled between the ECM and the IAC motor circuits and provides first circuits re-establishing a normal signalling communication therebetween, and second circuits comprising parallel test circuits including indicators and switches constructed and arranged for indicating faults in the component.
Abstract: A diagnostic testing apparatus for testing an electrical component normally controlled by pulse signals from the electronic control module (ECM) of an automotive electrical system, which apparatus is coupled between the ECM and the component to be tested and provides first circuits establishing a normal signalling communication therebetween, and second circuits comprising parallel test circuits including indicators and switches constructed and arranged for indicating faults in the component.