LANE DEPARTURE ALERT SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   

   NEXT

2. INSPECT BATTERY VOLTAGE

   
   

   1. Measure the battery voltage with the ignition switch off.

      Standard Voltage
      11 to 14 V

   2. If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.

      Result
      Proceed to NEXT

   
   

   NEXT

3. CHECK METER/GAUGE SYSTEM*

   
   

   1. Use the GTS to check if the meter/gauge system is functioning normally.

      Click here

      Result
      Result Proceed to Meter/gauge system DTCs are not output A Meter/gauge system DTCs are output B

   
   

   B

   GO TO METER/GAUGE SYSTEM Click here

   A

4. CHECK PRE-CRASH SAFETY SYSTEM*

   
   

   1. Use the GTS to check if the pre-crash safety system is functioning normally.

      Click here

      Result
      Result Proceed to Pre-crash system DTCs are not output A Pre-crash system DTCs are output B

   
   

   B

   GO TO PRE-CRASH SAFETY SYSTEM Click here

   A

5. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

   
   

   1. Using the GTS, perform CAN bus diagnostics and check that there are no malfunctions in ECUs connected to the CAN communication system.

      Click here

      Result
      Result Proceed to CAN communication system DTCs are not output A CAN communication system DTCs are output B

   
   

   B

   GO TO CAN COMMUNICATION SYSTEM Click here

   A

6. CHECK FOR DTC*

   
   

   1. Check for DTCs.

      Click here

   2. Clear the DTCs.

      Click here

   3. Recheck for DTCs.

      Click here

      
      

      1. Try to reproduce the problem symptoms based on the recorded DTCs, and then check if the DTCs are output again.

         Tech Tips

         When a DTC is output, check the Diagnostic Trouble Code Chart.

         Click here

      Result
      Result Proceed to No DTC is output (symptoms can be confirmed and reproduced) A No DTC is output (symptoms cannot be confirmed and reproduced) B DTCs are output C

   
   

   B

   USE SIMULATION METHOD TO CHECK Click here

   C

   GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

   A

7. PROBLEM SYMPTOMS TABLE

   
   

   1. Check if fault is listed in the Problem Symptoms Table.

      Click here

      Result
      Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B

   
   

   B

   ADJUST , REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

   A

8. PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM*

   
   

   1. Data List/Active Test.

      Click here

   2. Terminals of ECU.

      Click here

      Result
      Proceed to NEXT

   
   

   NEXT

9. ADJUST, REPAIR OR REPLACE

   Note

   Adjustment of the pre-crash safety city sensor beam axis is required when the pre-crash safety city sensor is replaced.

   Perform adjustment with either "ONE TIME RECOGNITION" or "SEQUENTIAL RECOGNITION".

   
   

   • ONE TIME RECOGNITION: Click here

   • SEQUENTIAL RECOGNITION: Click here

   Result
   Proceed to NEXT

   
   

   NEXT

10. CONFIRMATION TEST

    Result
    Proceed to NEXT

    
    

    NEXT

    END