P0CFF

Hybrid/EV Battery Pack Coolant Pump A Stuck/Stalled

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–500 (est.)

Symptoms

Hybrid system power reduction
Battery overheat warning on dashboard
Deterioration of electric vehicle range
Noise or complete lack of operation of the cooling pump
Activation of emergency operation

Causes

Seized cooling pump bearings
Pump motor malfunction
Problems with the electrical connection of the pump
Cooling system is dirty or clogged
Faulty pump relay or fuse

How to Fix

Diagnosis of pump electrical connections
Checking fuses and relays of the cooling system
Cooling pump performance testing
Replacing a faulty cooling pump
Flushing the cooling system if necessary

Related codes

P0CFE P0D00 P0D01