P2B55B Camshaft Profile Actuator B Control Stuck On Bank 1
The control circuit of camshaft profile actuator B on the exhaust side of bank 1 reports a control stuck on condition. Cam profile B (high-lift or VTEC-style) cannot be commanded reliably.
Can I keep driving? NO
STOP the vehicle in a safe place. Continuing to drive may cause serious engine damage or put your safety at risk.
Sistema Afectado
Motor · Powertrain

La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- Check engine light on Power loss especially in mid-rpm range Possible rough idle or stalling Increased fuel consumption
Possible Causes
The components or conditions that trigger this code
- 1Actuator stuck in high-lift position Release pressure path blocked Carbon or debris buildup preventing free movement
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: medium. Estimated time: 1-4 hours. Estimated cost: €150-€
- 2Professional repair recommended
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Varies by diagnosis
* Diagnosis only: $50–$150
Quick Info
Dig Deeper
Videos, images and service manuals
Have Another Code?
Look it up directly: