P2B64

Coolant Pump B Control Module Overtemperature

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Engine overheating
Unstable operation of the cooling system
Check Engine light comes on
Reduced engine performance

Causes

Coolant pump control module malfunction
Problems with electrical connections
Insufficient module cooling
Coolant pump malfunction

How to Fix

Check the electrical connections of the control module
Check the operation of the coolant pump
Replace the control module if necessary
Check the cooling system for leaks

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