DTC P3400-08: Cylinder Deactivation System Bank 1 - Bus signal/message failures: Action
- Vehicle Conditions to enable DTC Logging Strategy
- Engine running
- Prioritized Checks to Perform
- Using the Jaguar Land Rover approved diagnostic equipment, check and install latest relevant level of software to the powertrain control module
- Using the Jaguar Land Rover approved diagnostic equipment, check for PCM power supply and/or charging system related DTCs and refer to the relevant DTC index