P9X2-14E270-AF DC-DC Converter Inverter Control Module Genuine for Land Rover & Jaguar
Genuine OEM DC-DC Converter / Inverter Control Module (also referred to as the Power Conversion Module or Voltage Converter) for Land Rover and Jaguar plug-in hybrid electric vehicles (PHEV). Part number P9X2-14E270-AF. This module is a critical power electronics component that steps down high-voltage from the traction battery to a stable 12 volts, supplying the vehicle’s auxiliary systems and charging the conventional 12V battery. It ensures reliable operation of lights, infotainment, climate control, and all driver-assistance electronics while the vehicle is in EV mode or ready state. The unit is tested, fully functional, and comes as a direct plug-and-play replacement. No additional programming is normally required, though DTC clearing with JLR-approved diagnostic equipment is recommended after installation.
Function
- Converts high-voltage DC (from the traction battery) to low-voltage 12V DC for the vehicle’s accessory systems
- Maintains a stable 12V output during all driving modes, including pure electric, hybrid, and engine-only operation
- Supports bidirectional energy flow (12V battery charging) when the vehicle is awake or charging
- Communicates with the Powertrain Control Module (PCM) and Battery Energy Control Module (BECM) via CAN bus for intelligent power management
- Includes integrated safety features: overcurrent protection, overtemperature shutdown, and isolation monitoring
- Enables key-off 12V battery maintenance and supports extended parking periods without draining the auxiliary battery
Supported Car Models (Plug-in Hybrid Electric Vehicles)
- Land Rover Range Rover P400e (L405) – 2018 to 2022
- Land Rover Range Rover Sport P400e (L494) – 2018 to 2022
- Land Rover Discovery P300e (L462) – 2020 to 2023
- Land Rover Defender P400e (L663) – 2020 to 2023
- Land Rover Range Rover Evoque P300e (L551) – 2020 to 2023
- Land Rover Discovery Sport P300e (L550) – 2020 to 2023
- Jaguar F-Pace P400e (X761) – 2020 to 2023
- Jaguar E-Pace P300e (X540) – 2020 to 2023
- Other JLR PHEV/MHEV platforms – always verify exact part number (P9X2-14E270-AF) against your vehicle’s original module
Note: This module is primarily for plug-in hybrid (PHEV) variants equipped with a high-voltage traction battery. Check for fitment on mild-hybrid (MHEV) vehicles, though compatibility may differ.







