Charge Air Cooler Coolant Pump B Stuck/Stalled

Where it lives

For P2CB3, the part to look at first is the pump named here.

Check these first

• A charge air cooler coolant pump B that stopped turning
• A seized pump B bearing
• Debris lodged in pump B
• A pump B that lost its power feed

What to do next

1. Command charge air cooler coolant pump B on and listen for it
2. Test for voltage and ground at pump B
3. Check pump B for debris or a seized bearing
4. Spin pump B by hand to check for binding
5. Replace charge air cooler coolant pump B if it will not turn
6. Clear the code and retest

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