Description

BSM warning alarm does not sound while BSM indicator light flashes

• The BSM control module recognizes that vehicle is in warning zone on side in which turn signal is operated, but BSM warning alarm does not sound despite BSM indicator light flashing.

Possible Causes

• Instrument cluster receives incorrect BSM warning alarm request signal

• Instrument cluster malfunction

• BSM control module malfunction

Step

Inspection

Result

Action

1

VERIFY MALFUNCTION SYMPTOM

• Verify the malfunction symptoms for each side.

• Is there a malfunction symptom on each side (BSM warning alarm sounds)?

Yes

Go to Step 3.

No

Go to the next step.

2

INSPECT BSM WARNING ALARM REQUEST SIGNAL

• Monitor the PID BUZZER on the suspected side of the BSM control module using the M-MDS while the BSM indicator light is flashing.

  (See PID/DATA MONITOR INSPECTION [BLIND SPOT MONITORING (BSM)].)

• Is the PID BUZZER on when the BSM indicator light is flashing?

Yes

Replace the applicable BSM control module.

(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.)

No

Go to the next step.

3

INSPECT BSM WARNING ALARM

• Turn off the BSM using the M-MDS instrument cluster active command modes ALARM.

  (See ACTIVE COMMAND MODES TABLE [INSTRUMENT CLUSTER].)

• Does the BSM turn off according to the active command models?

Yes

Replace the applicable BSM control module.

(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.)

No

Replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)