BSM INDICATOR LIGHT DOES NOT FLASH WHILE UNDER BSM INDICATOR LIGHT-FLASHING CONDITIONS (WITH LIGHT SWITCH OPERATION (TURN SIGNAL SWITCH)) [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 10-PIN TYPE]

id0903n2015600

Description	BSM indicator light does not flash while under BSM indicator light-flashing conditions (with combination switch operation (turn signal switch))
	•  The BSM indicator light does not flash or illuminate continuously, but the conditions to flash the BSM indicator light are satisfied (vehicle speed 10 km/h {6.2 mph} or more, turn signal on, and vehicle in warning zone). •  BSM indicator light does not flash or illuminate continuously, but turn signals are on.
Possible Causes	Note •  This malfunction symptom is basically the same as symptom “BSM indicator light does not illuminate while under BSM indicator light-illumination conditions”. •  The BSM control module mistakenly recognizes a vehicle as being outside of the warning zone when it is actually inside of it. ―   Radar (BSM control module integrated) is not emitted inside of warning zone (unable to emit radar inside 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. ―  BSM control module does not receive echo-back correctly •  BSM control module (radar) malfunction •  Problem with rear bumper such as dirt on radar emitting/receiving area, application of stickers (including transparent types), repairs using putty application. Note •  Rear bumper problems such defective installation of rear bumper, excessive dirt on radar emitting/receiving area, sticker adhesion (including transparent types), repairs to rear bumper using putty •  Non-genuine bumper or paint, or installation of after-market parts negatively affecting radar echo-back ability ―   After-market electrical parts interfere with BSM system •  BSM does not recognize vehicle speed correctly (BSM control module mistakenly recognizes vehicle speed as being within 10 km/h {6.2 mph} or more ―  PCM communication error with BSM control module ―  Malfunction in ABS wheel speed sensor related parts •  Malfunction in BSM indicator light related parts ―  Open circuit in wiring harness between BSM indicator light and BSM control module ―  Open circuit in wiring harness or poor ground between BSM control module and ground ―  BSM indicator light malfunction •  Signal is not input for turn signal ―  Combination switch (turn signal switch) malfunction ―  Open 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