This bulletin applies to 2014 Jaguar F-Type, 2013-2014 XF and 2013-2015 XJ vehicles (all gasoline engines). The engine speed may “dip” or the engine may hesitate after an Auto Stop/Start event. This may be caused by a PCM software calibration issue.
Using a Jaguar/Land Rover-approved diagnostic tool with the latest DVD (146.02 v.243 or later) and calibration file, reprogram the PCM. Jaguar recommends using a Midtronics battery power supply connected to the vehicle battery during module programming.
- Connect the Jaguar-approved Midtronics battery power supply to the vehicle battery.
- Turn the ignition ON (engine off)
- Connect the Jaguar/Land Rover-approved diagnostic tool to the vehicle and begin a new session.
- Follow the on-screen prompts, allowing the tool to read the VIN, identify the vehicle and initiating the data collect sequence.
- Select Diagnosis from the session type screen.
- Select the Selected Symptoms tab and then select Powertrain-Engine system-Engine performance-Engine speed dips, or Powertrain-Engine system-Engine performance-Engine hesitates.
- Select Continue.
- Select the Recommendations tab.
- Select Run to perform the Configure existing module – Powertrain control module option.
- Follow all on-screen instructions to complete the task, ensuring that all DTCs are cleared.
- When all tasks complete, select the Session tab and then select the Close Session option.
- Disconnect the diagnostic tool and battery power supply.
