DTC P0748-00: Pressure Control Solenoid Circuit Malfunction (TCM) (Us): Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0748:00 (TCM, ET6A-EL, ET6AX-EL, US) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Pressure control solenoid circuit malfunction
Detection condition	Under the following condition, the TCM detects the pressure control solenoid circuit malfunction: Battery voltage is 10.5 V or more.
Fail-safe	Set to emergency mode. Inhibits learning control. Inhibits manual mode. Inhibits neutral idle control. Inhibits AAS.
Possible cause	Short or open circuit in pressure control solenoid circuit Pressure control solenoid malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable