LANE DEPARTURE WARNING SYSTEM OPERATES EARLY OR UNNECESSARILY [LANE DEPARTURE WARNING SYSTEM (LDWS)]


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Note
•  Due to environmental effects, the system behavior may differ from the driver’s intentions even though the vehicle has no malfunction. To perform symptom troubleshooting, an understanding of the applicable system from the new vehicle instruction is required. For details on the control conditions of the system, refer to the [LANE DEPARTURE WARNING SYSTEM (LDWS)] operation in the new vehicle instruction.

Outline

Description
•  LDWS operates early or unnecessarily.
Possible cause
•  Forward sensing camera (FSC) optical axis deviation
•  Forward sensing camera (FSC) malfunction


Diagnostic Procedure

Step

Inspection

Results

Action

1
VERIFY ALL SYSTEM DTCs
•  Perform the DTC inspection.
•  Are any DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
Go to the next step.
Repair completion verification
VERIFY THAT VEHICLE IS REPAIRED
•  Install/connect the part removed/disconnected during the troubleshooting procedure.
•  Has the malfunction symptom been eliminated?
Yes
Complete the symptom troubleshooting. (Explain contents of repair to customer)
No
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
•  If the malfunction is not resolved, replace the forward sensing camera (FSC).