BRIGHTNESS OF BLIND SPOT MONITORING (BSM) WARNING LIGHT IS TOO BRIGHT OR TOO DARK [BLIND SPOT MONITORING (BSM) SYSTEM]
NOTE:
If there is any vehicle malfunction complaint lodged by a customer, first perform malfunction diagnosis according to the troubleshooting procedure. (See FOREWORD [BLIND SPOT MONITORING (BSM) SYSTEM].)
Description
The brightness level of the blind spot monitoring (BSM) warningr light is low in the daytime (headlights off) (correct level at night).
The brightness level of the blind spot monitoring (BSM) warningr light is high at night (headlights on) (correct level in the daytime).
Possible malfunction
The blind spot monitoring control module (RH) cannot receive the TNS switch signal.
TNS switch (light switch) malfunction (stuck)
Instrument cluster malfunction
Blind spot monitoring (BSM) control module (LH) malfunction
Diagnostic Procedure
Step |
Inspection |
Action |
|
1 |
|
Yes |
Go to Step 3. |
No |
Go to the next step. |
||
2 |
|
Yes |
Perform the DTC inspection for the start stop unit, instrument cluster and the blind spot monitoring (BSM) control module. (See DTC INSPECTION [START STOP UNIT].) (See DTC INSPECTION [INSTRUMENT CLUSTER].) (See DTC INSPECTION [BLIND SPOT MONITORING (BSM) CONTROL MODULE].) |
No |
Replace the light switch. |
||
3 |
NOTE:
|
Yes |
NOTE:
Explain to the customer that the system is normal. |
No |
Replace the blind spot monitoring (BSM) control module (LH). (See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.) |