DTC B10D1:23 [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	Detect request switch (LF) ON signal while driving
POSSIBLE CAUSE	Connector or terminal malfunction Short to ground in wiring harness between front outer handle (LH) terminal D and keyless control module terminal 3X Request switch (LF) malfunction Keyless control module malfunction
Courtesy of MAZDA MOTORS CORP.