OBD-II code · Powertrain (generic, extended)
P2C18 B Camshaft Profile Actuator Position Sensor B Circuit Low Bank 1
The position sensor B of camshaft profile actuator on the exhaust side of bank 1 reports a circuit low condition. Cam profile selection feedback cannot be measured reliably.
Is it safe to drive with P2C18?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to ground
- PossibleInternal sensor short
- Less likelyConnector pins corroded - high contact resistance
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- Parts involved
- B Camshaft Profile Actuator Pos Sensor B B1, Wiring Harness, Ecm
Related codes
- P2C07A Camshaft Profile Actuator Position Sensor A Circuit Low Bank 1
- P2C0BA Camshaft Profile Actuator Position Sensor B Circuit Low Bank 1
- P2C0FA Camshaft Profile Actuator Position Sensor C Circuit Low Bank 1
- P2C14B Camshaft Profile Actuator Position Sensor A Circuit Low Bank 1
- P2C1CB Camshaft Profile Actuator Position Sensor C Circuit Low Bank 1
- P2C15B Camshaft Profile Actuator Position Sensor A Circuit High Bank 1
- P2C16B Camshaft Profile Actuator Position Sensor B Circuit Bank 1
- P2C17B Camshaft Profile Actuator Position Sensor B Range/Performance Bank 1
- P2C19B Camshaft Profile Actuator Position Sensor B Circuit High Bank 1
- P2C1AB Camshaft Profile Actuator Position Sensor C Circuit Bank 1
- P2C1BB Camshaft Profile Actuator Position Sensor C Range/Performance Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.