Description

Error signal received from start stop unit

Detection condition

• Blind spot monitoring (BSM) control module (LH) receives the error signal from the start stop unit for 2 s or more with the ignition switched ON (engine off or on).

Fail-safe

• Blind spot monitoring (BSM) system is stopped.

Possible cause

• DTCs are stored in the start stop unit.

• Start stop unit malfunction

• DTCs are stored in the instrument cluster.

• Instrument cluster malfunction

• Blind spot monitoring (BSM) control module (LH) malfunction

System wiring diagram

Not applicable

Step

Inspection

Action

1

• Retrieve the start stop unit DTCs using the M-MDS.

  (See DTC INSPECTION [START STOP UNIT].)

• Are any DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [START STOP UNIT].)

No

Go to the next step.

2

• Retrieve the instrument cluster DTCs using the M-MDS.

  (See DTC INSPECTION [INSTRUMENT CLUSTER].)

• Are any DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [INSTRUMENT CLUSTER].)

No

Go to the next step.

3

• Clear the DTC for the blind spot monitoring (BSM) control module using the M-MDS.

  (See CLEARING DTC [BLIND SPOT MONITORING (BSM) CONTROL MODULE].)

• Switch the ignition ON (engine off or on) and wait for 3.5 s or more.

• Retrieve the blind spot monitoring (BSM) control module DTCs using the M-MDS.

  (See DTC INSPECTION [BLIND SPOT MONITORING (BSM) CONTROL MODULE].)

• Is the same DTC displayed?

Yes

Replace the blind spot monitoring (BSM) control module (LH), then go to the next step.

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

No

Go to the next step.

4

• Are any other DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [BLIND SPOT MONITORING (BSM) CONTROL MODULE].)

No

DTC troubleshooting completed.