BLIND SPOT MONITORING (BSM) WARNING ALARM DOES NOT SOUND WHILE BLIND SPOT MONITORING (BSM) WARNING LIGHT FLASHES [BLIND SPOT MONITORING (BSM) SYSTEM]

id1503a3021600

Item
BLIND SPOT MONITORING (BSM) WARNING ALARM DOES NOT SOUND WHILE BLIND SPOT MONITORING (BSM) WARNING LIGHT FLASHES
Description
•  The blind spot monitoring (BSM) control module recognizes that vehicle is in warning zone on side in which turn signal is operated, but blind spot monitoring (BSM) warning alarm does not sound despite blind spot monitoring (BSM) warning light flashing.
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 blind spot monitoring (BSM) warning alarm request signal
?  Instrument cluster malfunction
?  Blind spot monitoring (BSM) control module malfunction

Diagnostic Procedure

Step

Inspection

Result

Action
1
INSPECT BLIND SPOT MONITORING (BSM) WARNING ALARM REQUEST SIGNAL
•  Implement the both side blind spot monitoring (BSM) control module simulation RCTA_BUZZER using the M-MDS, and activate the warning alarm.
•  Is the warning alarm activated?
Yes
Go to the next step.
No
Replace the applicable blind spot monitoring (BSM) control module.
(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.)
2
DETERMINE IF MALFUNCTION CAUSE IS BLIND SPOT MONITORING (BSM) CONTROL MODULE OR INSTRUMENT CLUSTER
•  Implement the instrument cluster simulation ALARM using the M-MDS, and activate the warning alarm.
•  Is the warning alarm activated?
Yes
Replace the applicable blind spot monitoring (BSM) control module (LH).
(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.)
No
Replace the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)