DTC U0515-68; Error Signal Received From Start Stop Unit: Notes

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION & POSSIBLE CAUSE

Description	Error signal received from start stop unit
Detection condition	Forward sensing camera (FSC) receives the error signal from the start stop unit for 5 s or more.
Fail-safe	Inhibits the lane departure warning system (LDWS). Inhibits the lane-keep assist system. Inhibits the high beam control (HBC) system. Inhibits the smart city brake support (SCBS).
Possible cause	DTCs are stored in the start stop unit. Start stop unit malfunction Forward sensing camera (FSC) malfunction
System wiring diagram	Not applicable