Powertrain
Definition only
Lights the check engine lamp
P2650: B Rocker Arm Actuator Control Circuit / Open Bank 1
Standardized SAE J2012 code · P26xx — Computer and output circuits
What does P2650 mean?
The controller cannot drive the rocker arm switching actuator B on bank 1. The second valve lift mode cannot be commanded.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Open coil in oil control valve
- Medium Broken control wire
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2650 on the same make and model first.
P2650 in the community
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