Ford Focus RS - 2016 GRCK2 Accesstuner Definition Upgrade to 2017 GRCK4 Strategy

Introduction

COBB Custom Features support was released in Ford Accesstuner Pro version 1.9.1.0-13796 using Ford's latest 2017 Focus RS (GRCK4) ROM.  This 2017 ROM strategy supersedes the existing 2016 (GRCK2) Ford Focus RS strategy.  As a result the original 2016 ECU definition files have been removed from Accesstuner support.  Maps based on the GRCK2 strategy will not load.  However, the GRCK2 Focus RS maps can be opened in map comparison view for analysis and import into the new GRCK4 strategy.  See details below to migrate existing calibration files from 2016 GRCK2 to the latest 2017 GRCK4 definition file.

Frequently Asked Questions (FAQ)

Where did the 2016 Focus RS (GRCK2) ECU definitions go?

• The "CHDM 2016 C346 Focus RS", "EDM 2016 C346 Focus RS" and "USDM 2016 C346 Focus" RS definition files have been removed from Ford Accesstuner.
  • Ford Accesstuner no longer supports calibration editing for these 3 noted definition files, so the load map operation will throw the following warning:
    
    
    

What ECU definition should I use moving forward?

• Existing 2016 Focus RS definition files have been superseded by 2017 Focus RS definition files.  Use the table below to determine the appropriate replacement strategy.

How do I migrate my existing 2016 calibration changes to a 2017 Focus RS definition file?

• First you'll need to select the appropriate ECU definition.  See table "What ECU definition should I use moving forward?" above for "replacement" strategy. 

• After you have the correct ECU definition open we're going to use the "Import Tables from Map..." feature. You can find it under the "File" → "Import Tables from Map...". 

Navigate to the 2016 Map you wish to work on and open it.

Click "Select All" and then "Ok". You calibration file is now based off of the latest 2017 ECU definition file.