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DTC P0780: Notes

DTC P0780 [AW6A-EL, AW6AX-EL] DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0780 Valve control solenoid circuit malfunction (valve stuck)
DETECTION CONDITION 
  • Irregular shift control detected when following conditions are satisfied while driving:

    Monitoring condition: 

    • ATF temperature 65°C {149°F} or more 
    • Engine running
    • Driving in D range
    • Counter drive gear (output) revolution speed 300 rpm or more (VSS) 

Diagnostic support note: 
  • This is a continuous monitor (CCM).
  • The MIL illuminates if the TCM detects the above malfunction condition during the first drive cycle.
  • A PENDING CODE is not available.
  • FREEZE FRAME DATA is available.
  • The AT warning light illuminates.
  • The DTC is stored in the TCM memory.
POSSIBLE CAUSE 
  • Shift solenoid A stuck
  • Shift solenoid B stuck
  • Shift solenoid C stuck
  • Shift solenoid D stuck
  • Shift solenoid E stuck
  • Shift solenoid F stuck
  • Line pressure control solenoid stuck
  • Control valve stuck
  • TCM malfunction