P2B9C

Coolant Pump A Stuck/Stalled

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Engine overheating
Increase in coolant temperature
Insufficient interior heating
Check engine light is on
Reduced engine performance

Causes

Coolant pump stuck
Pump motor malfunction
Problems with wiring or connectors
Faulty relay or fuse
Problems with the engine control unit

How to Fix

Check fuses and pump relays
Inspect the pump wiring and connectors
Check the operation of the coolant pump
Replace faulty coolant pump
Check and update ECU software if necessary

Related codes

P2B9D P2B9E P2B9F