BSM INDICATOR LIGHT FLASHES WHILE NOT UNDER BSM INDICATOR LIGHT-FLASHING CONDITIONS (NO LIGHT SWITCH OPERATION (TURN SIGNAL SWITCH)) [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 10-PIN TYPE]

id0903n2015500

Description	BSM indicator light flashes while not under BSM indicator light-flashing conditions (no combination switch operation (turn signal switch)
	•  The BSM indicator light flashes despite not satisfying the BSM indicator light flashing conditions (vehicle speed 10 km/h {6.2 mph} or more, turn signal on, and vehicle in warning zone)). •  The BSM indicator light flashes, but the turn signals are off.
Possible Causes	Note •  This malfunction symptom is basically the same as symptom “BSM indicator light while not under BSM indicator light-illumination conditions”. •  BSM control module recognizes a vehicle as being inside the warning zone when it is actually outside of it. ―  Radar (BSM control module integrated) is emitted outside of warning zone (deviates from warning zone) •  Damage, deformity or looseness to installation bracket or vehicle frame (including moderate impacts). •  Malfunction in steering angle signal (communication error between body control module (BCM) and BSM control module. •  Problem with rear bumper such as dirt on radar emitting/receiving area, application of stickers (including transparent types), repairs using putty application. ―  After-market electrical parts interfere with BSM system •  BSM does not recognize vehicle speed correctly (BSM control module mistakenly recognizes vehicle speed as being 10 km/h {6.2 mph} or more ―  PCM communication error with BSM control module ―  Malfunction in ABS wheel speed sensor related parts •  BSM control module mistakenly recognizes that turn signals have been operated ―  Short to ground circuit in wiring harness between combination switch (turn signal switch) and body control module (BCM) ―  Communication error between body control module (BCM) and BSM control module ―  BSM control module malfunction

Diagnostic Procedure