HEADUP DISPLAY SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
2. Click here

   CUSTOMER PROBLEM ANALYSIS

   Tip:
   

   • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.

   • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

   • The following 5 items are important points for problem analysis:

     What	Vehicle model, system name
     When	Date, time, occurrence frequency
     Where	Road conditions
     Under what conditions?	Driving conditions, weather conditions
     How did it happen?	Problem symptoms

   Result
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   • NEXTClick here
3. Click here

   INSPECT BATTERY VOLTAGE

   
   

   1. Measure the battery voltage.

      Standard Voltage
      11 to 14 V

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

   2. Check the fuses and relays.

   3. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
4. Click here

   CHECK CAN COMMUNICATION SYSTEM*

   
   

   1. Using the GTS, check for CAN communication system DTCs.

      Click here

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

   
   
   • AClick here
   • B

     GO TO CAN COMMUNICATION SYSTEMClick here

5. Click here

   CHECK FOR DTC*

   
   

   1. Check for DTCs.

      
      
      1. Body Electrical > Head Up Display > Trouble Codes
      2. 
         
      3. 
         

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

   
   
   • AClick here
   • B

     GO TO DIAGNOSTIC TROUBLE CODE CHARTClick here

6. Click here

   PROBLEM SYMPTOM CONFIRMATION

   Result
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   • NEXTClick here
7. Click here

   SYMPTOM SIMULATION

   Result
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   • NEXTClick here
8. Click here

   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

   
   
   • AClick here
   • B

     GO TO PROBLEM SYMPTOMS TABLEClick here

9. Click here

   OVERALL ANALYSIS AND TROUBLESHOOTING*

   
   

   1. Terminals of ECU.

      Click here

   2. Data List / Active Test.

      Click here

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
10. Click here

    CIRCUIT INSPECTION

    Result
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    • NEXTClick here
11. Click here

    ADJUST, REPAIR OR REPLACE

    Result
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    • NEXTClick here
12. Click here

    CONFIRMATION TEST

    Result
    Proceed to NEXT

    
    
    • NEXT

      END