If your engine protect light is on and check engine light is on, it may be time to do a forced regeneration. All active codes must be cleared or items on the active list must be fixed before performing a forced regeneration.
1. Turn truck on
2. Cycle Clutch in and out
3. Cycle Parking Brake in and out
4. Push Regen tab down and push switch up, wait for engine response and let release regen switch.
5. If Regen does not start you have active codes that needs to be cleared.
* Freightliner Cascadia, Century, Columbia, with EPA07 Detroit 60 Series.