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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> Transmission >> Automatic Trans >> On-Board Diagnostic - Automatic Transaxle (Mm8AX-EC) >> DTC P0747-00: Pressure Control Solenoid Valve: Stuck On

DTC P0747-00: Pressure Control Solenoid Valve: Stuck On

System malfunction location Pressure control solenoid valve: Stuck on
Detection condition
  • Any one of the following conditions is met:
    • Vehicle cannot accelerate from standstill by depressing the accelerator pedal.
    • Abnormal decrease in line pressure is detected while the vehicle is driven (not during shifting).
Fail-safe
  • Limits engine torque.
  • Inhibits learning control.
  • Inhibits manual mode.
  • Inhibits switching from engine-only driving to EV driving. (With Mazda M Hybrid boost)
  • Inhibits i-stop control. (Without Mazda M Hybrid boost)
  • Inhibits AAS.
Possible cause
  1. ATF is less than Specified value. (Refer to [AUTOMATIC TRANSMISSION FLUID (ATF) INSPECTION ] in service information).
  2. Control valve body malfunction (Pressure control solenoid valve malfunction) (Refer to [CONTROL VALVE BODY REMOVAL/INSTALLATION ] in service information).
  3. Automatic transmission malfunction (ATF leakage from clutch hydraulic circuit in automatic transmission) (Refer to [AUTOMATIC TRANSMISSION REMOVAL/INSTALLATION ] in service information).
Repeatability verification procedure
  1. Clear the DTC recorded in the memory. (See CLEARING DTC .)
  2. Perform the following procedure to ensure that the DTC has been resolved:
    • Drive the vehicle under the following conditions:
    • Vehicle speed: 30 km/h {19 mph} or more
System wiring diagram
  • Not applicable