Powertrain
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Lights the check engine lamp
P2B41: A Camshaft Position Actuator Position Sensor B Circuit Low Bank 1
Standardized SAE J2012 code · P2Bxx codes
What does P2B41 mean?
The position sensor B of the camshaft position actuator on the intake side of bank 1 reports a circuit low condition. Cam phasing position cannot be measured reliably.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
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 P2B41 on the same make and model first.
P2B41 in the community
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