Check engine on then off - cummins turbo actuator

[matt-1111]

Check engine light came on last night. Used local auto parts store scanner that brought up U010C code (lost communication with turbocharger control module), and said to replace turbo actuator. This morning when I started the truck again to see if the warning light persisted, it was not there. Why would check engine light have gone away? I did see a YT video that said this code could mean the actuator needs to be replaced, but could also just mean a wiring issue and would need further diagnostics to be sure. Any suggestions on how what I should do? I imagine I'll have to have a repair shop take a look. Maybe they have a way of testing the wiring.

 

[Daw14]

Bad electrical connections,corrosion on connections.

 

[star_deceiver]

Because the actuator takes a bit to act up. Don’t worry, your check engine light will return, with more codes. You will be, at minimum, replacing the actuator and maybe the turbo. In Canada, the actuator will run you $4k from the dealer, much less elsewhere.