DTC U3000-97: Radar Sensor Sensitivity: Notes

WARNING: This page is about a different car, the 2016 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Description	Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (blind spot monitoring (BSM) control module (LH))
Detection condition	Radar sensor sensitivity in blind spot monitoring (BSM) control module (LH) decreases for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe	Blind spot monitoring (BSM) system is stopped.
Possible cause	Rear bumper dirt or foreign material (reflective object) is adhered. Dirt or foreign material (reflective object) on blind spot monitoring (BSM) control module (LH) Concavity and convexity on the surface of the repaired rear bumper Blind spot monitoring (BSM) control module (LH) malfunction
System wiring diagram	Not applicable