Pan america electronic control module (ECM) update

Bulletin number

M1720

Component

Engine

Summary

SERVICE BULLETIN M1720 (REV A): PAN AMERICA ELECTRONIC CONTROL MODULE (ECM) UPDATE. PURPOSE: Initial release 3/3/2026. Revision A. 3/30/2026. Updated: Purpose for Service Bulletin and Required Dealer Action. Adjust information for 2024 models. Purpose for Service Bulletin. This bulletin informs dealers that there is an Electronic Control Module (ECM) update available for 2021-2025 RA1250, RA1250S, RA1250ST and RA1250SE on Digital Technician II (DT II). The update improves engine function by addressing engine operation after a cold start by improving idle stability and improved Quickshifter function. For 2021-2024 models the Body Control Module (BCM) and ECM update must both be completed. If only the ECM is updated, a nuisance Diagnostic Trouble Code (DTC) U040000 will populate and not be able to be cleared. Because of this, the BCM update should be done first and then the ECM.

Owners of these vehicles have filed 20 complaints in the engine category.