A Rocker Arm Actuator System Stuck On Bank 2
The rocker arm actuator A on bank 2 stays in the activated state when commanded off.
Affected components
- Rocker arm actuator a b2
- Oil control valve
Common causes
- High likelihood: Mechanical lock pin stuck in activated position
- Medium likelihood: Oil control valve spool stuck open
- Low likelihood: Carbon or debris buildup preventing free movement
Diagnostic notes
- The malfunction indicator lamp may illuminate
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.