Circuit DescriptionNormally, switches, accelerators, and other components are connected to the engine control module (ECM) directly through individual wires. Multiplexing...

Circuit DescriptionNormally, switches, accelerators, and other components are connected to the engine control module (ECM) directly through individual wires. Multiplexing...

Circuit DescriptionThe ECM uses diagnostic software to verify injector operation. During selected conditions, each injector is fired. The fueling quantity...

Circuit DescriptionThe coolant temperature sensor is a variable resistor sensor and is used to measure the temperature of the coolant...

Circuit DescriptionThe exhaust gas recirculation (EGR) temperature sensor is a variable resistor sensor and is used to measure the temperature...

Circuit DescriptionThe ECM supplies 5 volts to the intake manifold temperature signal circuit, and monitors the change in voltage caused...