P0E7A

Coolant Bypass Valve A Control Stuck Closed

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$17–56 (est.)

Symptoms

Engine overheating
Reduced engine performance
Unstable engine operation at idle
Check engine light comes on
Increased fuel consumption

Causes

Coolant bypass valve malfunction
Valve electrical circuit problems
Valve is dirty or clogged
Engine control unit (ECU) malfunction
Wiring harness damage

How to Fix

Check the electrical circuit of the valve for breaks and short circuits
Check the functionality of the coolant bypass valve
Clean or replace valve if dirty
Check and, if necessary, replace the engine control unit
Check wiring harness for damage

Related codes

P0E7B P0E7C P0E7D