P0E7B

Coolant Bypass Valve B Control Circuit/Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Engine overheating
Unstable engine temperature
Check Engine light comes on
Reduced cooling system efficiency
Increased fuel consumption

Causes

Valve control circuit open
Coolant Bypass Valve B Malfunction
Wiring harness damage
Contact corrosion
Engine control unit malfunction

How to Fix

Check valve control circuit integrity
Check valve resistance
Inspect the wiring harness for damage
Clean contacts from corrosion
If necessary, replace coolant bypass valve B

Related codes

P0E7A P0E7C P0E7D