P26B0

Engine Coolant Bypass Valve B Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Engine overheating
The engine takes a long time to warm up
Unstable engine operation
Increased fuel consumption
Check Engine light comes on

Causes

Coolant Bypass Valve B Malfunction
Open or short circuit in valve circuit
Problems with the engine control unit (ECU)
Valve is dirty or clogged
Poor electrical connection

How to Fix

Check the electrical circuit of the valve for opens and shorts
Check valve resistance
Clean or replace coolant bypass valve B
Check and update ECU software if necessary
Make sure there are no coolant leaks

Related codes

P26B1 P26B2 P26B3