AUTOMATIC HIGH BEAM SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   

   NEXT

2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK

   Result
   Proceed to NEXT

   
   

   NEXT

3. INSPECT AUXILIARY BATTERY VOLTAGE

   
   

   1. Measure the auxiliary battery voltage with the power switch off.

      Standard voltage
      11 to 14 V

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

      Result
      Proceed to NEXT

   
   

   NEXT

4. INSPECT CAN COMMUNICATION SYSTEM*

   
   

   1. Use the GTS to check if the CAN communication system is functioning normally.

      for LHD:

      Click here

      for RHD:

      Click here

      Result
      Result Proceed to CAN communication system DTCs are not output A CAN communication system DTCs are output (for LHD) B CAN communication system DTCs are output (for RHD) C

   
   

   B

   GO TO CAN COMMUNICATION SYSTEM Click here

   C

   GO TO CAN COMMUNICATION SYSTEM Click here

   A

5. CHECK HYBRID CONTROL SYSTEM*

   
   

   1. Use the GTS to check if the hybrid control system is functioning normally.

      Click here

      
      Powertrain > Hybrid Control > Trouble Codes

      Result
      Result Proceed to Hybrid control system DTCs are not output A Hybrid control system DTCs are output B

   
   

   B

   GO TO HYBRID CONTROL SYSTEM Click here

   A

6. CHECK SFI SYSTEM*

   
   

   1. Use the GTS to check if the SFI system is functioning normally.

      w/ EGR System:

      Click here

      w/o EGR System:

      Click here

      
      Powertrain > Engine and ECT > Trouble Codes

      Result
      Result Proceed to SFI system DTCs are not output A SFI system DTCs are output B

   
   

   B

   GO TO SFI SYSTEM w/ EGR System: GO TO SFI SYSTEM Click here GO TO SFI SYSTEM w/o EGR System: GO TO SFI SYSTEM Click here

   A

7. CHECK AIRBAG SYSTEM*

   
   

   1. Use the GTS to check if the airbag system is functioning normally.

      Click here

      
      Body Electrical > SRS Airbag > Trouble Codes

      Result
      Result Proceed to Airbag system DTCs are not output A Airbag system DTCs are output B

   
   

   B

   GO TO SFI SYSTEM Click here

   A

8. CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM*

   
   

   1. Use the GTS to check if the electronically controlled brake system is functioning normally.

      Click here

      
      Chassis > ABS/VSC/TRC > Trouble Codes

      Result
      Result Proceed to Electronically controlled brake system DTCs are not output A Electronically controlled brake system DTCs are output B

   
   

   B

   GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM Click here

   A

9. CHECK FOR DTC*

   
   

   1. Check for DTCs.

      Click here

      
      Body Electrical > Main Body > Trouble Codes
      Body Electrical > HL AutoLeveling > Trouble Codes

      Result
      Result Proceed to DTCs are not output A DTCs are output B

   
   

   B

   GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

   A

10. PROBLEM SYMPTOMS TABLE

    
    

    1. Refer to 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

11. OVERALL ANALYSIS AND TROUBLESHOOTING*

    
    

    1. Operation check

       Click here

    2. Fail-safe chart

       Click here

    3. Data List / Active Test

       Click here

    4. Terminals of ECU

       Click here

    5. Inspection

       Result
       Proceed to NEXT

    
    

    NEXT

12. ADJUST, REPAIR OR REPLACE

    Result
    Proceed to NEXT

    
    

    NEXT

13. CONFIRMATION TEST

    Result
    Proceed to NEXT

    
    

    NEXT

    END