FixVault

DTC U0401:68 [Advanced Keyless Entry And Push Button Start System]: Notes

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION AND POSSIBLE CAUSE

DETECTION CONDITION  Keyless control module receive engine state or engine speed data from PCM, while steering is locked
POSSIBLE CAUSE 
  • PCM malfunction
  • Keyless control module malfunction