Update the calibration
Use Calibrate Engine to install an updated or corrected calibration on a connected ECM. During intake, Guidanz uses the engine serial number (ESN) to check Cummins servers and identify calibration availability before guiding the technician through installation.
Expected result
The selected calibration is successfully transferred to the ECM, applicable adjustable parameters are restored when that option was selected, and the calibration process completes successfully.
If calibration fails, Guidanz can offer a recovery workflow on the next connection. Selecting Start Over returns the user to the Home page. Reconnect through Analyze Equipment to attempt calibration recovery using Try Again.
Important notes / prerequisites
- Connect to the equipment and open the applicable ECM from Equipment Summary.
- Confirm the vehicle has sufficient battery capacity before starting.
- The calibration transfer can take up to 30 minutes. Loss of power or interruption can leave the vehicle inoperable.
Secure Calibration Management
Secure Calibration Management (SCM) manages calibration authorization for offline installation. During intake, Guidanz checks the entered ESN with Cummins servers and can inform the user when an updated or corrected calibration is available.
If the calibration will be attempted while the device is offline, obtain pre-approval from SCM before starting the calibration. From the Calibration Files options, open Manage ESN, enter the engine serial number, select the reason for the calibration, and select Search to validate the request.
Available reasons include Revision Update or ROM-Booted, Campaign, Temporary Repair Procedure, Account Team Coverage, Uprate, Technical Service Bulletin (TSB), and Seeded ECM. If the information is approved, the calibration can be performed at the offline location using the pre-authorization.
Offline calibration: obtain SCM pre-approval before attempting the installation.
Windows procedure
- Connect to the equipment and open the applicable ECM from Equipment Summary.
- From the ECM Device Dashboard, select Calibrate Engine.
- Review the current calibration. Guidanz prompts you to download ECM code when a newer revision is available or when the calibration does not match the expected calibration for the ESN.
- Select the reveal arrow on the calibration page to browse previously downloaded calibrations, or select Find Online to search for and download a calibration. When a calibration is found, you can download it and view its revision history. When you are online and expect to remain online, you do not need to complete the offline-information portion of the page.
- Review the calibration process and warnings before continuing.
- Choose whether to save and restore adjustable parameters. Use this option when performing a calibration update.
- Confirm the equipment has sufficient battery capacity, then begin the calibration process.
- Follow all displayed instructions, including any required key-off/key-on steps, until Guidanz reports completion.
Import a calibration package
GDTK Windows can import a properly configured calibration package, including a package received from another source such as email.
- From the Home screen, open Calibration Files.
- Select Import Calibration.
- In Windows File Explorer, select the appropriate zipped ESDN folder. Do not rely on double-clicking the zipped package to import it.
- Add notes to the package when prompted.
Calibration process
Guidanz performs the calibration in three general phases:
- Download the new calibration to the computer or mobile device.
- Transfer the new calibration to the ECM.
- Restore applicable parameters and complete or close the ECM after the transfer.
The transfer can take up to 30 minutes and should only be performed when the vehicle has sufficient battery capacity. At the beginning of the transfer, select save and restore adjustable parameters when performing a calibration update. This option preserves applicable adjustable settings and writes them back after the new calibration is installed.
Important safety warning
The calibration transfer can take up to 30 minutes. Perform the update only when the vehicle has sufficient battery capacity. Loss of power or interruption during calibration can result in the vehicle becoming inoperable.
DTK Mobile differences
On DTK Mobile, Calibrate Engine is also opened from the ECM Device Dashboard. If a newer ECM code is available, Guidanz guides the user through the upgrade process.
The Mobile calibration process has the same three general phases:
- Download the new calibration to the mobile device.
- Transfer the calibration to the ECM.
- Restore applicable parameters and complete or close the ECM after transfer.
Mobile also supports calibration recovery following certain failures. Recovery requires the same mobile device and user login used for the original calibration download. Depending on the stage and type of failure, Guidanz can provide Try Again, Start Over, Ignore and Continue, or recovery-file options.
Mobile ROM-boot recovery
If communication is lost during later portions of calibration and the ECM becomes ROM-booted, Guidanz may instruct the user to key the module off for 90 seconds, reconnect, and continue the recovery workflow.
If Guidanz recovery cannot complete, recovery files can be shared for recovery using INSITE. The Mobile training material identifies the trim recovery file by its .trm extension and instructs that it be placed in the INSITE Cal Logs directory for the INSITE recovery procedure.