BSM OFF INDICATOR LIGHT ILLUMINATES CONTINUOUSLY [BLIND SPOT MONITORING (BSM)]

id0903d9015200

Description
BSM OFF indicator light illuminates continuously
•  The BSM OFF indicator light illuminates for 4 s or more without the BSM OFF switch turning off after the ignition is switched ON.
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.
•  Malfunction in BSM OFF switch related parts
―  BSM OFF switch malfunction (stuck at on)
•  Instrument cluster does not turn off BSM indicator light
―  BSM control module (LH) malfunction
―  Instrument cluster malfunction

Diagnostic Procedure

Step

Inspection

Result

Action
1
INSPECT BSM OFF SWITCH
•  Inspect the BSM OFF switch.
•  Is the BSM OFF switch normal?
Yes
Go to the next step.
No
Replace the BSM OFF switch.
(See BLIND SPOT MONITORING (BSM) OFF SWITCH REMOVAL/INSTALLATION.)
2
INSPECT IF MALFUNCTION IS IN INSTRUMENT CLUSTER OR BSM CONTROL MODULE (LH)
•  Turn off the BSM OFF indicator light using the M-MDS instrument cluster active command modes WL+IL.
•  Does the BSM OFF indicator light turn off according to the active command modes?
Yes
Replace the BSM control module (LH).
(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.)
No
Replace the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)