Charge Air Coolant Pump
The charge air coolant pump is installed on the left side of the radiator.
An electrical connector provides the interface between the motor of the charge air coolant pump and the vehicle wiring.
Electrical power for the charge air coolant pump is supplied from the PCM relay, located in the Engine Junction Box (EJB). When the PCM relay is energized, the PCM connects power supply to the charge air coolant pump. Operation of the charge air coolant pump is controlled by the PCM with a PWM signal.