DTC B108B-23: Push Button Start Switch 1 Circuit Malfunction (BCM): Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC B108B:23 (BCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Push button start switch 1 circuit malfunction
Detection condition	The body control module (BCM) detects that the push button start switch 1 is stuck on for 2 min or more.
Fail-safe	Perform the control with the push button start switch 1 turned off.
Possible cause	Push button start connector or terminal malfunction Body control module (BCM) connector or terminal malfunction Short to ground in push button start switch 1 signal circuit Push button start switch 1 malfunction Body control module (BCM) malfunction
Courtesy of MAZDA MOTORS CORP.