Cylinder Deactivation Position Sensor Bank 2
The engine control module has detected an implausible signal from the bank 2 cylinder deactivation position sensor. The sensor confirms switching lifter position; without a valid signal the module cannot safely command deactivation transitions on bank 2.
Affected components
- Position sensor
- Engine wiring harness
- Ecm
Common causes
- High likelihood: Position sensor failed
- Medium likelihood: Wiring or connector fault
- Low likelihood: Lifter mechanically stuck
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.