Circuit DescriptionThe fan clutch solenoid is a device used by the ECM to control the engine fan by sending asignal...

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

Circuit DescriptionThe fuel temperature sensor is located in the fuel pump. Fuel temperature information ispassed to the engine control module...

Circuit DescriptionThis fault indicates a final defect of the temperature sensor. The sensor’s reading indicates an unrealistic value, or the...

Circuit DescriptionThe electronic control module (ECM) enables the lift pump by sending a signal directly to the lift pump. The...

Circuit DescriptionThe electronic control module (ECM) enables the lift pump by sending a signal directly to thelift pump. The ECM...