P0770 KIA – Reduction Solenoid Valve System Fault

 

P0770: DIY Repairing Video Tutorial

https://youtu.be/4agd0ub6a6Y

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0770 KIA Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light),Transmission will not shift gears.  

P0770 KIA Possible Causes

  Low transmission fluid level,Dirty transmission fluid,Faulty Reduction solenoid valve,Reduction solenoid valve harness is open or shorted,Reduction solenoid valve circuit poor electrical connection  

P0770 KIA Description

  Reduction solenoid valve is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position.