I hope this helps. If it won't regen then it might need the acm software updated. How long have you had.

Webi am attaching the code description and trouble shooting steps for spn 5443 fmi 15. Spn 5443 fmi 15 (acm) dpf hc absorptions warning description: High hydrocarbon absorption in the diesel particulate filter. Got code spn 5443 fmi 15 on the acm. Please update the troubleshooting guides in diagnosticlink with this newest version. Dpf hc absorption very high. Feature enabled may result in an.

Please update the troubleshooting guides in diagnosticlink with this newest version. Dpf hc absorption very high. Feature enabled may result in an. Webspn 5443 (acm) (ghg17) and spn 520372 (acm) (ghg17) diagnosticlink users: Mcm is showing code spn 4077 fmi 14 High hydrocarbon absorption in the diesel. Dpf hc absorption high. Dpf hc absorption warning.

High hydrocarbon absorption in the diesel. Dpf hc absorption high. Dpf hc absorption warning.