Circuit DescriptionThe aftertreatment diesel exhaust fluid line heater relay provides the power supply to line heaters 1, 2, and 3....

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

Circuit DescriptionDevices such as ABS controllers, autoshift transmissions, ASR systems, electronic displays, electronic information systems, electronic service tools, and vehicle...

Circuit DescriptionThe aftertreatment diesel exhaust fluid controller is the central control for the SCR diesel exhaust fluid dosing system, and...

Circuit DescriptionThe overcrank protection feature (or starter lockout) is designed to prevent damage to the starter motor during hard start...

Circuit DescriptionThe aftertreatment diesel exhaust fluid dosing unit air solenoid is used to enable and disable the truck air supply...