FixVault

Frequent Shifting: Notes

TROUBLESHOOTING ITEM Frequent shifting
DESCRIPTION 
  • Downshifting occurs suddenly even when accelerator pedal is depressed slightly in D position.
POSSIBLE CAUSE 
  • Signal malfunction
    • APP sensor malfunction
  • Low-G (XY) sensor (built into SAS control module) malfunction
CAUTION:
  • Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.