NO.3 BSM OFF INDICATOR LIGHT ILLUMINATES CONTINUOUSLY [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 8-PIN TYPE]

id0903n1990500

3
BSM OFF indicator light illuminates continuously
DESCRIPTION
•  The BSM OFF indicator light illuminates for 4 s or more without the BSM OFF switch turning off after the ignition switch is turned to the ON position.
Possible Causes
•  Malfunction in BSM OFF switch related parts
―  BSM OFF switch malfunction (stuck at on)
―  Short to ground circuit in wiring harness between BSM OFF switch and BSM control module (RH) terminal E
•  Instrument cluster does not turn off BSM indicator light
―  BSM control module (RH) malfunction
―  Communication error between BSM control module (RH) and instrument cluster
―  Instrument cluster malfunction

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY DTCs
•  Retrieve DTCs from the BSM control module (RH) and instrument cluster using the M-MDS.
•  Are any DTCs displayed?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [INSTRUMENT CLUSTER].)
(See DTC TABLE [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 8-PIN TYPE].)
No
Go to the next step.
2
INSPECT IF MALFUNCTION IS IN BSM OFF SWITCH OR INSTRUMENT CLUSTER
•  Monitor the BSM control module (RH) PID BSM_OFF_IL using the M-MDS.
•  Turn the BSM OFF switch on and off.
•  Does the PID BSM_OFF_IL monitoring value turn on and off according to the BSM OFF switch operation?
Yes
Go to Step 5.
No
Go to the next step.
3
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.)
4*
INSPECT BSM OFF SWITCH RELATED WIRING HARNESS
•  Inspect for an open circuit in the following:
―  Between BSM OFF switch and BSM control module (RH) terminal E
―  Between BSM OFF switch and ground
•  Is a short to ground detected?
Yes
Repair or replace the malfunctioning part.
No
Replace the BSM control module (RH).
(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 8-PIN TYPE].)
5
INSPECT IF MALFUNCTION IS IN INSTRUMENT CLUSTER OR BSM CONTROL MODULE (RH)
•  Turn on the BSM OFF indicator light using check code 26 of the instrument cluster input/output check mode function.
•  Does the BSM OFF indicator light illuminate?
Yes
Replace the BSM control module (RH).
(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 8-PIN TYPE].)
No
Replace the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)