P059F, P05A7, U0284 engine codes

[Gopher3]

Engine light came on with these codes. where can I find what they are? I have a 2014 ecodiesel with 46000 miles. thanks

 

[John]

I saw these codes before on another forum and it was caused by issues with the active shutter operation.

 

[bigredmf]

Kind of ironic I just found U0284 on my 2015 Ecodiesel today
Was warmer this AM but temp dropped and wet snow covered the front end of my truck.
Nothing in stored messages just the solid cel.

I’ve never been successful getting my cheap elm327 to connect to the truck

Thank you
Red


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[bigredmf]

I reset it today but it came back on next start up. Appointment at dealer Wednesday

Red


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[Gopher3]

I reset codes and been driving the truck for over a week now and so far no more codes.

 

[bigredmf]

Good to hear.

I’ve diagnosed my Active Shutters are not cycling properly. A new ACS assembly list for $400 I can buy for $305, as dealer says they don’t offer the actuator separately though I found it online for 220$
Broke down and bought a used one off the bay but don’t know when I’ll receive it
Good luck

Red



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[bigredmf]

My U0284 appears to have gone away on its own despite the shutters being removed from the truck with the actuator only being bolted to the core support plugged in to the harness


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