P023A

Charge Air Cooler Coolant Pump A Control Circuit/Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Charge air overheating
Check Engine Light Illuminates

Causes

Open or short circuit in the pump control circuit
Intercooler coolant pump malfunction
Pump relay or fuse problems
Engine control unit (ECU) malfunction

How to Fix

Check the pump fuse and relay
Check the integrity of the wiring harness and connectors
Check the operation of the intercooler coolant pump
Check control signals from the ECU
Replace faulty components

Related codes

P023B P023C P023D