OBD Code P0748

Pressure Control Solenoid “A” Electrical

What’s mean?

OBD2 Code P0748 Definition:
The line pressure solenoid valve A 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 P0748
– Engine Light ON (or Service Engine Soon Warning Light) – Transmission shift shock

Possible Causes

Possible causes of P0748
– Faulty line pressure solenoid valve A – Line pressure solenoid valve A harness or connectors – Line pressure solenoid valve A 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