U05AA

Invalid Data Received From Charge Air Cooler Coolant Pump

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Check Engine Light Illuminates
Unstable engine operation at high speeds
Intercooler overheating

Causes

Intercooler coolant pump malfunction
Open or short circuit in the pump circuit
Poor contact in connectors
Problems with the engine control unit
Software error in the control system

How to Fix

Check the operation of the intercooler coolant pump
Inspect the wiring harness and connectors for damage.
Check fuses and relays associated with the pump
Read pump parameters via diagnostic scanner
If necessary, replace the coolant pump

Related codes

U05AB U05A9 U05AC