P2E64

Engine Coolant Bypass Valve E Control Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–78 (est.)

Symptoms

Unstable engine temperature
Extended engine warm-up time
Check Engine Light Is On
Reduced cooling system efficiency

Causes

Open or short circuit in valve control circuit
Coolant bypass valve malfunction
Problems with the wiring harness or connectors
Engine control unit malfunction
Corrosion of contacts in an electrical circuit

How to Fix

Check voltage and resistance in valve control circuit
Inspect connectors and wiring harness for damage
Check the functionality of the coolant bypass valve
If necessary, replace the valve or repair the electrical circuit
Clear error codes and check if error is returned

Related codes

P2E63 P2E65 P0128