Charge Air Cooler Coolant Pump Control Circuit Open

The other is a chafed control wire that wore through the electrical connection causing an open circuit.

Charge air cooler coolant pump control circuit open.

This allows the spring tension to separate the relay armature contact from the relay load circuit contact which interrupts current flow to the supercharger charge air cooler coolant pump. Obd ii code wiring issue is defined as a charge air cooler coolant pump control circuit open. Code p023a charge air cooler coolant pump control circuit open is active when there is an open circuit within the charge air cooler coolant pump and or its circuit. If the ecm detects an improper voltage on the pump relay control circuit this dtc sets.

The powertrain control module monitors the charge air cooler coolant pump function. The pcm sets the obdii code when the charge air cooler coolant pump is out of factory specifications. Point being both mechanical and electrical faults are equally possible. This system uses its own coolant pump that is electronically controlled by the engine computer.

The powertrain control module pcm monitors the charge air cooler coolant pump function.