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Code eec 61 freigtliner cascadia 2012

 

Probably just need to do a Regen. Put it in neutral, press and hold the Regen switch for about five seconds. It should pick up rpms, sound like its running rough for 20 - 40 minutes, then idle back down when complete.

 

U need to do regen. It probably needed regen while u were sleeping but since u were sleeping u couldnt activate it.. The regen symbol It starts flashing at u if u ignore the solid light and if u ignore the flashing light it will throw the code until u regen . once regen is done it should clear the code.