P0E20

Hybrid/EV Battery Pack Coolant Control Valve A Control Circuit Driver Current/Temperature Too High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced hybrid system efficiency
Battery pack overheating
Reduced vehicle power
Incorrect operation of the cooling system

Causes

Battery cooling valve malfunction
Valve control circuit problems
Control driver overheating
Short circuit in the circuit
Wiring Harness Problems

How to Fix

Check battery cooling valve
Check the control circuit for opens and short circuits
Check valve control driver
Check the condition of the wiring harness
Replace faulty components

Related codes

P0E21 P0E22 P0E23