THE BSM INDICATOR LIGHT DOES NOT FLASH OR ILLUMINATE CONTINUOUSLY, BUT A TURN SIGNAL IS ON [BLIND SPOT MONITORING (BSM)]

id0903d9015700

Description

The BSM indicator light does not flash or illuminate continuously, but a turn signal is ON

•  The BSM warning alarm sounds but BSM indicator light does not flash

•  The BSM warning alarm is triggered on side opposite to the direction in which turn signal is operated

Possible Causes

Note

•  The detection performance of the blind spot monitoring (BSM) control module has limitations and the blind spot monitoring (BSM) system may not operate normally. For the detection performance limitations, refer to the [BLIND SPOT MONITORING (BSM) CONTROL MODULE] in the technical guide.

•  Instrument cluster receives incorrect BSM warning alarm request signal

―  Communication error between BSM control module and instrument cluster

―  Instrument cluster malfunction

Diagnostic Procedure

Step	Inspection	Result	Action
1	INSPECT BSM WARNING ALARM • Turn off the BSM using the M-MDS instrument cluster active command modes ALARM. (See ACTIVE COMMAND MODES TABLE [INSTRUMENT CLUSTER].) • Does the BSM turn off according to the active command models?	Yes	Go to the next step.
1		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
2	VERIFY DTCs • Retrieve DTCs from the BSM control module and instrument cluster using the M-MDS. (See DTC INSPECTION [INSTRUMENT CLUSTER].) (See DTC INSPECTION [BLIND SPOT MONITORING (BSM)].) • Are any DTCs displayed?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [INSTRUMENT CLUSTER].) (See DTC TABLE [BLIND SPOT MONITORING (BSM)].)
2		No	Go to the next step.
3	VERIFY BSM INDICATOR LIGHT CONDITION • Verify the BSM indicator light illumination condition while under the BSM indicator light-illumination conditions (vehicle speed 10 km/h {6.2 mph} or more, turn signals off, and vehicle in warning zone). • Does the BSM indicator light illuminate normally?	Yes	Replace the BSM control module. (See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.)
3		No	Go to the symptom troubleshooting procedure, ”BSM indicator light does not illuminate while under BSM indicator light-illumination conditions”. (See BSM INDICATOR LIGHT DOES NOT ILLUMINATE WHILE UNDER BSM INDICATOR LIGHT-ILLUMINATION CONDITIONS [BLIND SPOT MONITORING (BSM)].)