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

id1503a3021100

Item
BLIND SPOT MONITORING (BSM) OFF INDICATOR LIGHT ILLUMINATES CONTINUOUSLY
Description
•  The blind spot monitoring (BSM) OFF indicator light illuminates for 3 s or more without the blind spot monitoring (BSM) switch turning off after the ignition switch is turned to the ON position.
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 blind spot monitoring (BSM) switch related parts
?  Blind spot monitoring (BSM) switch malfunction (stuck at on)
•  Instrument cluster does not turn off blind spot monitoring (BSM) warning light
?  Blind spot monitoring (BSM) control module (LH) malfunction
?  Instrument cluster malfunction

Diagnostic Procedure

Step

Inspection

Result

Action
1
VERIFY DTCs
•  Retrieve DTCs from the instrument cluster and rear body control module (RBCM) using the M-MDS.
•  Are any DTCs displayed?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [INSTRUMENT CLUSTER].)
(See DTC TABLE [REAR BODY CONTROL MODULE (RBCM)].)
No
Go to the next step.
2
INSPECT BSM OFF INDICATOR LIGHT OPERATION
•  Turn on the blind spot monitoring (BSM) OFF indicator light using the M-MDS instrument cluster active command modes WL+IL.
•  Does the blind spot monitoring (BSM) OFF indicator light illuminate according to the active command modes?
Yes
Go to the next step.
No
Replace the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
(See BLIND SPOT MONITORING (BSM) SWITCH REMOVAL/INSTALLATION.)
3
INSPECT BLIND SPOT MONITORING (BSM) SWITCH
•  Inspect the blind spot monitoring (BSM) switch.
•  Is the blind spot monitoring (BSM) switch normal?
Yes
Replace the blind spot monitoring (BSM) control module (LH).
(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.)
No
Replace the blind spot monitoring (BSM) switch.
(See DTC INSPECTION [REAR BODY CONTROL MODULE (RBCM)].)