Invalid Data Received From Charge Air Cooler Coolant Pump

Where it lives

For U05AA, start at the pump the description names.

Check these first

• A data bus fault on the charge air cooler coolant pump circuit
• A failed charge air cooler coolant pump module
• Loss of power or ground at the charge air cooler coolant pump
• A corroded charge air cooler coolant pump connector

What to do next

1. Read charge air cooler coolant pump data on a scan tool
2. Inspect the charge air cooler coolant pump connector and harness
3. Check power and ground at the charge air cooler coolant pump
4. Test the data bus to the charge air cooler coolant pump
5. Replace the charge air cooler coolant pump if the circuit tests pass
6. Clear the code and retest

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