Cylinder Deactivation Pressure Sensor Bank 1
The engine control module has detected a fault with the bank 1 cylinder deactivation pressure sensor. Newer variable displacement systems use an analogue oil pressure sensor in addition to or in place of the legacy switch; a fault disables closed-loop deactivation control on bank 1.
Affected components
- Oil pressure sensor
- Engine wiring harness
- Ecm
Common causes
- High likelihood: Pressure sensor failed
- Medium likelihood: Wiring or connector fault
- Low likelihood: Sensor port contaminated by sludge
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.