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Home >> Mazda >> 2016 >> 6 Sport, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (On-Board Diagnostics - Automatic Transaxle) >> DTC P1784-00: Hi Cut Valve Stuck Off/R-3-5 Cut Valve Stuck On >> Notes

DTC P1784-00: Hi Cut Valve Stuck Off/R-3-5 Cut Valve Stuck On: Notes

WARNING: This page is about a different variant/trim than selected.
DTC P1784:00 Hi cut valve stuck off/R-3-5 cut valve stuck on
DETECTION CONDITION 
  • Under the following conditions, hi cut valve stuck-off or R-3-5 cut valve stuck-on detected by combination of gear ratio malfunction and oil pressure switch pattern malfunction:
    • Engine is running.
    • ATF temperature is 20 °C {68 ° F} or more. 
    • There is no difference between vehicle speed signal from DSC HU/CM and output shaft speed sensor signal.
    • Turbine/input shaft speed sensor and output shaft speed sensor DTC is not recorded.
FAIL-SAFE FUNCTION 
  • Inhibits malfunctioning gear.
  • Limits engine torque.
  • Inhibits learning control.
  • Inhibits neutral idle control.
POSSIBLE CAUSE 
  • ATF is less than specified value
  • Hi cut valve malfunction
  • R-3-5 cut valve malfunction
  • Clutch burnt
SYSTEM WIRING DIAGRAM  Not applicable