FixVault

DTC P1728: 00 Clutch Slippage: Notes

DTC P1728:00 DETECTION CONDITIONS AND POSSIBLE CAUSES (FW6A-EL)

DTC P1728:00  Clutch slippage 
DETECTION CONDITION 
  • Under the following conditions, turbine/input shaft speed suddenly increases 300 rpm or more  for 1, 450 ms: 
    • Engine is running.
    • Vehicle speed is 5 km/h {3 mph} or more. 
    • There is no difference between vehicle speed signal from DSC HU/CM and output shaft speed sensor signal.
    • Not shifting
    • Selector lever position is D position.
    • Turbine/input shaft speed is 1, 200 rpm or more. 
    • Oil pressure switch pattern (1st-6th) is normal.

Diagnostic support note 
  • The check engine light does not illuminate.
  • The automatic transaxle warning light does not illuminate.
  • PENDING CODE is available.
  • FREEZE FRAME DATA is not available.
  • DTC is stored in the TCM memory.
FAIL-SAFE FUNCTION 
  • Inhibits malfunctioning gear.
  • Limits engine torque.
  • Maximizes the line pressure.
  • Inhibits learning control.
  • Inhibits manual mode.
  • Inhibits neutral idle control.
  • Inhibits AAS.
POSSIBLE CAUSE 
  • ATF is less than specified value
  • Clutch slippage
SYSTEM WIRING DIAGRAM  Not applicable