Powertrain
Definition only
Lights the check engine lamp
P26B5: Fuel Shutoff Valve B Control Circuit Performance/Stuck Off
Standardized SAE J2012 code · P26xx — Computer and output circuits
What does P26B5 mean?
The second fuel shutoff valve is commanded on but does not open.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Valve seized closed by debris
- Medium Solenoid loses force from coil aging
- Low Carbon or debris buildup preventing free movement
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P26B5 on the same make and model first.
P26B5 in the community
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