P2E46

Hybrid/EV Electronics Coolant Pump B Overspeed - Dry Run

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Reduced cooling efficiency of the hybrid system
Noise or hum from the cooling pump
Overheating of electronic components
Hybrid system power reduction

Causes

Low coolant level
Leak in the cooling system
Airing the cooling system
Electric pump malfunction
Problems with pump wiring or connectors

How to Fix

Check coolant level
Inspect the system for leaks
Eliminate air locks in the system
Check the operation of the pump and its power supply
If necessary, replace the cooling pump

Related codes

P2E45 P2E47 P0A00