Possible causes

– Dirty transmission fluid
– Low transmission fluid level
– Faulty line pressure solenoid valve ‘A’
– Line pressure solenoid valve ‘A’ harness is open or shorted
– Line pressure solenoid valve ‘A’ circuit poor electrical connection

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

P0748 Description

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).

P0748 Information for specific makes

P0748 ACURA
P0748 AUDI
P0748 BMW
P0748 CHRYSLER
P0748 DODGE
P0748 HONDA
P0748 HYUNDAI
P0748 ISUZU
P0748 JEEP
P0748 KIA
P0748 LEXUS
P0748 MAZDA
P0748 MITSUBISHI
P0748 SUBARU
P0748 SUZUKI
P0748 TOYOTA
P0748 VOLKSWAGEN
P0748 SCION
P0748 BUICK
P0748 CADILLAC
P0748 CHEVROLET
P0748 GMC
P0748 PONTIAC
P0748 SATURN