OBD Code P0778

Pressure Control Solenoid “B” Electrical

What’s mean?

OBD2 Code P0778 Definition:
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).

Symptoms

Possible sumptoms of P0778
– Engine Light ON (or Service Engine Soon Warning Light) – Transmission shift shock

Possible Causes

Possible causes of P0778
– Faulty line pressure solenoid valve B – Line pressure solenoid valve B harness or connectors – Line pressure solenoid valve B circuit is open or shorted – Low transmission fluid level – Dirty transmission fluid The Error code is generally activated on detection of the following conditions: Engine Control Module (ECM) detectes an open or shorted condition on the solenoid circuit

Possible Solutions