What it means
The exhaust (B) camshaft phaser solenoid drive line on bank 2 is stuck high — short to B+ or open ground.
At a glance
- Usually lights the check-engine light
- Affects emissions; the car can fail an emissions test
How it works
The bank 2 exhaust camshaft actuator uses an oil control valve to route oil to the exhaust cam phaser and change valve timing. P2095 sets when the control module sees drive-circuit voltage above its expected limit, which can keep the exhaust cam actuator from operating as commanded.
Common causes
Most likely first.
- Short to B+
- Connector pins corroded - high contact resistance
- Supply wire pinched against B+ source
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
How to diagnose it
- Save freeze-frame data and compare commanded and actual bank 2 exhaust cam timing to establish when the fault appears.
- Inspect the bank 2 exhaust actuator harness for pinched insulation or a wire contacting a B+ source.
- Check the oil control valve connector for corrosion, poor pin contact, or damage to the ground return.
- Test the drive wire for a short to B+ and check the ground path and valve winding according to the manufacturer's procedure.
- If the wiring and valve pass, test the control module's bank 2 exhaust actuator driver to the manufacturer's specification.
Common fixes
- Repair a bank 2 exhaust actuator wire pinched against a power source or shorted to B+.
- Clean or repair corroded or poorly seated connector terminals.
- Repair an open ground return in the actuator circuit.
- Replace the bank 2 exhaust oil control valve if its electrical tests fail.
- Repair or replace the control module only if its driver is proven faulty.
Can I keep driving?
If the engine is stable, keep any necessary drive short and gentle; avoid hard acceleration because bank 2 exhaust valve timing may not be controlled correctly. Stop if the engine stalls, runs very roughly, or loses significant power.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.