P0748 MAZDA Pressure Control Solenoid A Electrical

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 obd code mean?
Engine Control Module (ECM) detectes an open or shorted condition on the solenoid circuit
– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission shift shock
P0748 MAZDA OBD Code 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).

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