Description

Poor functioning of forward sensing camera (FSC)

Detection condition

• With the LDWS switch on or the high beam control (HBC) system operating, a condition in which the area around the forward sensing camera (FSC) is excessively bright, and the system is inoperable for 10 min or more is detected.

Fail-safe function

• Inhibits the lane departure warning system (LDWS).

• Inhibits the high beam control (HBC) system.

Possible cause

• Windshield fogging

• Forward sensing camera (FSC) lens fogging

• Forward sensing camera (FSC) malfunction

System wiring diagram

Not applicable

Step

Inspection

Action

1

• Verify if the windshield is fogged.

• Is the windshield fogged?

Yes

Clear the fogging from the windshield, then go to Step 3.

No

Go to the next step.

2

• Verify if there is any fogging on the forward sensing camera (FSC) lens.

• Is the forward sensing camera (FSC) lens fogged?

Yes

Clear the fogging from the forward sensing camera (FSC) lens, then go to the next step.

No

Go to the next step.

3

• Clear the DTC for the forward sensing camera (FSC) using the M-MDS.

  (See CLEARING DTC [FORWARD SENSING CAMERA (FSC)].)

• Drive the vehicle at a vehicle speed of 20 km/h {12 mph} or more for 3 min or more.

• Retrieve the forward sensing camera (FSC) DTCs using the M-MDS.

  (See DTC INSPECTION [FORWARD SENSING CAMERA (FSC)].)

• Is the same DTC displayed?

Yes

Repeat the inspection from Step 1.

• If the malfunction recurs, replace the forward sensing camera (FSC).

  (See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION.)

Go to the next step.

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 [FORWARD SENSING CAMERA (FSC)].)

No

DTC troubleshooting completed.