Powertrain
Definition only
Lights the check engine lamp
P2B7C: EVAP System Pressure Sensor/Switch C Circuit Low
Standardized SAE J2012 code · P2Bxx codes
What does P2B7C mean?
The EVAP pressure sensor/switch C reports a circuit low 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 Signal wire shorted to ground
- Medium Internal sensor short
- Low Connector pins corroded - high contact resistance
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2B7C on the same make and model first.
P2B7C in the community
Ask about P2B7CNo one has posted about P2B7C yet
Share your vehicle, the tool you used and what you tested — the first thread helps everyone who searches for this code.
Describe your P2B7C problem