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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 P0777-00: Shift Solenoid No. 1: Stuck On

DTC P0777-00: Shift Solenoid No. 1: Stuck On

System malfunction location Shift solenoid No. 1: Stuck on
Detection condition
  • While the vehicle is driven in any of the following gears, interlock is determined.
    • 3rd gear
    • 4th gear
    • 5th gear
    • 6th gear
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 (Shift solenoid 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:
    • Drive the vehicle. (Use gears from 2nd to 3rd gear)
System wiring diagram
  • Not applicable