Gorhad

So she was driving to work this morning pulled up to traffic lights, pulled off and the car wouldnt shift out of 1st gear. I got there thinking maybe she had accidentally hit the manual shift control. But no it wouldnt budge out of 1st. Limped home some 2 miles, checked battery voltage all was fine and on target.

Connected my bluetooth adapter up with Carly App, scanned it to find

"Pressure Control Solenoid B Electrical

Code: OBD00 P0778

Fault: There is a fault in control unit ''Transmission''. There is a fault in control unit

'Transmission'.

Code: 001737"

Read up on some threads on here that similar symptoms were related to the speed sensor on the conductor plate.

Also found a definition

"P0778 - Pressure Control Solenoid 'B' Electrical

Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty line pressure solenoid 'B' valve
- Line pressure solenoid 'B' valve harness is open or shorted
- Line pressure solenoid 'B' valve circuit poor electrical connection What does this mean? What does this mean?
When is the code detected?
Engine Control Module (ECM) detectes an open or shorted condition on the solenoid circuit
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission shift shock
P0778 Description
The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM)"

So im somewhat lost

Any help would be greatly appreciated

Many Thanks