Powertrain
Definition only
Lights the check engine lamp
P2B7A: EVAP System Pressure Sensor/Switch C Circuit
Standardized SAE J2012 code · P2Bxx codes
What does P2B7A mean?
The EVAP pressure sensor/switch C reports a circuit condition. Tank pressure plausibility for leak detection on this branch is impaired.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Common causes
- High Pressure sensor C failed
- Medium Wiring or connector fault
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2B7A on the same make and model first.
P2B7A in the community
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