P0777 Engine Error Code
When you check engine light came on code P0777 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P0777 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on your car models.
Reason For P0777
P0777 OBD2 reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.
P0777 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0777 OBD-II Trouble Code The line pressure solenoid B valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).
P0777 Code Review :The reason of P0777 OBD-II Engine Error Code is P0777 Pressure Control Solenoid B Stuck On.
How To Recognise P0777
There could be a number of reasons for noisy brakes. It could be that your brake pads are loose, worn out, or you may have brake dust inside the drum. If you can't see anything wrong with your brake pads, and you suspect it may be brake dust, it may be best to leave this to a professional – brake dust can be extremely dangerous if accidentally inhaled.