The control circuit of PCV (positive crankcase ventilation) heater B reports a control circuit high condition. PCV line heater prevents oil mist freezing in cold weather.
Medium severity. Can I keep driving?If the car is running normally, drive in moderation to a repair shop. If it loses power or another warning appears, do not continue.
Most likely causes
- Control wire shorted to B+
- Open heater element
- Connector pins corroded - high contact resistance
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: easy
- It affects emissions.
What each character of P2CBE means
- P: Powertrain: engine and transmission
- 2: Generic code: same on every make
- C: Subsystem depends on the code range
- BE: Specific fault in that system
Frequently asked questions
Can I keep driving with code P2CBE?
If the car is running normally, drive in moderation to a repair shop. If it loses power or another warning appears, do not continue.
What causes code P2CBE?
The most common causes are: control wire shorted to B+; open heater element; connector pins corroded - high contact resistance.
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.