P2CF7

Hybrid/EV Battery Pack Coolant Pump B Underspeed

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Hybrid/electric battery overheating
Reduced vehicle power
Dashboard warning
Increased fuel consumption (for hybrids)
Unstable operation of the cooling system

Causes

Cooling pump malfunction
Problems with the pump electrical circuit
Low coolant level
Coolant contamination
Control module malfunction

How to Fix

Check the level and condition of the coolant
Diagnose the cooling pump for faults
Check the electrical circuit of the pump
Replace the cooling pump if necessary
Check and update the control module software

Related codes

P2CF6 P2CF8 P0A80