P0778
Pressure Control Solenoid B Electrical
DTC P0778, sometimes indicated as P077800 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the transmission (gearbox) causing pressure control solenoid b electrical.
The DTC P0778: Pressure Control Solenoid B Electrical code means that there is a problem with the electrical circuit to the pressure control solenoid B. This could be due to a wiring problem, a bad solenoid, or a problem with the controller.
If you have a wiring problem, you will need to inspect the wiring and fix any faults. If you have a bad solenoid, you will need to replace it. If you have a problem with the controller, you will need to replace the controller.
- P0778: Pressure Control Solenoid B Electrical
- P0778: Pressure Control Solenoid "B" Electrical
- P0778: Pres Ctrl Sol. B Circuit Electrical
- P0778: Pressure control solenoid B – electrical malfunction
- P0778 00: Pressure control solenoid B - electrical malfunction
2013 NISSAN MAXIMA with 139700 miles
I was traveling from houston, tx to dallas, tx midday on may 1, 2021. I was approximately 40 miles outside of dallas on i-45 traveling 75 mph when i suddenly felt a sputter and then the speed instantly decreased from 75 mph to 20 mph on a busy major interstate. I was almost hit twice as i tried to exit the interstate with cars traveling upwards of 75+ mph, blowing and honing and cursing me. I made it off the interstate and turned the car off. After making several calls for help, i was instructed by a mechanic to wait a few minutes and restart the car and try to accelerate while on the feeder. So i did, and the car did accelerate enough to get back on the interstate. I had to do this 5 times to get the remainder of the 40 miles to m destination. I took my car to metro dallas Nissan in flower mound, tx on may 3, 2021. I was told the inspection found codes P1778, P0778 found in ecm and tcm found transmission to be slipping and therefore, the cvt assembly needed to be replaced.....= $5523.00!!!! I have always had my car serviced at Nissan dealerships, maintained the car impeccably, driven with care and i am devastated! Although the car is 8 years old with 139k miles, there is no logical reason for the transmission to need replacing except for defective equipment from Nissan. I plan to continue to pursue the matter. I cannot afford to spend $5k on a car i worked so hard to pay off.
POWER TRAIN,