P2B3EB Camshaft Profile Actuator B Control Circuit High Bank 2
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2B3E is set when the control circuit of exhaust camshaft profile actuator B on bank 2 is shorted to supply voltage. No manufacturer documents the code publicly, so the details come from the analogue: GM's L3B tests the bank 1 counterpart P2B3B while the output is off and treats 0.5 Ω or less towards controller power as a short. CARB's comprehensive component section asks for detection of shorts to high voltage on actuators of this kind. Realistic causes would be insulation damage that brings the wire against a powered line or a solenoid shorted internally. The engine keeps running, but bank 2 loses exhaust lift switching, which costs efficiency. Open and ground faults on the same actuator are P2B3C and P2B3D.
- What you may notice
- Check engine light on
- Exhaust lift on bank 2 fixed, slightly higher consumption
- Likely causes
- LikelyDamaged insulation bringing the control wire against a powered line
- PossibleSolenoid in exhaust actuator B shorted internally
- RareOutput stage in the engine module faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.