DTC P023B-11: Charge Air Cooler Coolant Pump Control Circuit Low - Circuit short to ground: Action
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Refer to the appropriate system wiring diagrams and check air charge coolant pump relay circuit for short circuit to ground
- Clear the DTCs and retest
- Check and install new air charge coolant pump relay as required