Circuit DescriptionThe sensor supply 6 circuit of the engine control module (ECM) is a dedicated (+) 5-VDC supply for the...

Circuit DescriptionThe variable geometry turbocharger (VGT) is electronically activated by the VGT actuator. The VGT actuator is a smart device...

Circuit DescriptionThe air shutoff valve position switch is located inside the air shutoff valve. During testing, the engine is accelerated...

Circuit DescriptionThe engine control module (ECM) controls the engine intake air throttle actuator. The ECM can open and close the...

Circuit DescriptionThe aftertreatment diesel exhaust fluid tank heater keeps the diesel exhaust fluid from freezing in the diesel exhaust fluid...

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