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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 P0751-00: On/Off Solenoid Valve No. 1: Stuck Off

DTC P0751-00: On/Off Solenoid Valve No. 1: Stuck Off

System malfunction location ON/OFF solenoid valve No. 1: Stuck off
Detection condition
  • When the accelerator pedal is depressed, the engine or the motor revs and the vehicle cannot accelerate from a standstill.
Fail-safe
  • Inhibits malfunctioning gear.
  • 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. Control valve body malfunction (ON/OFF solenoid valve No. 1 malfunction) (Refer to [CONTROL VALVE BODY 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:
    WARNING:
    • When starting with increased engine speed, do so in a safe place to prevent accidents due to sudden jumping out.
    NOTE:
    • If the vehicle cannot start, increase the engine speed to the extent that it does not overrev and try to start several times.
    • Drive the vehicle under the following condition:
      • Vehicle speed: 30 km/h {19 mph} or more
System wiring diagram
  • Not applicable