POWER DOOR LOCK CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   

   NEXT

2. CUSTOMER PROBLEM ANALYSIS CHECK

   Tech Tips

   
   

   • 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, whether the problem occurred recently or has been occurring for a long time
     Where	Whether the problem occurs at a specific location
     Under what conditions?	Whether the doors were locked or unlocked, whether the engine switch was on (IG), whether the engine has started
     How did it happen?	Problem symptoms

   Result
   Proceed to NEXT

   
   

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3. 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

   
   

   NEXT

4. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

   
   

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

      
      

      • for LHD: Click here

      • for RHD: Click here

      Result
      Result Proceed to CAN DTCs are not output A CAN DTCs are output (for LHD) B CAN 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 COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

   
   

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

      Click here

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

   
   

   B

   GO TO LIN COMMUNICATION SYSTEM Click here

   A

6. CHECK FOR DTC (POWER WINDOW CONTROL SYSTEM)*

   
   

   1. Clear the DTCs.

      Click here

      
      Body Electrical > Master Switch > Clear DTCs

   2. Recheck for DTCs.

      
      Body Electrical > Master Switch > Trouble Codes

      Result
      Result Proceed to DTC B2312 is not output A DTC B2312 is output B

   
   

   B

   GO TO POWER WINDOW CONTROL SYSTEM Click here

   A

7. CHECK FOR DTC*

   
   

   1. Clear the DTCs.

      Click here

      
      Body Electrical > Main Body > Clear DTCs

   2. Recheck for DTCs.

      
      Body Electrical > Main Body > Trouble Codes

      Result
      Result Proceed to DTC B1243 is not output A DTC B1243 is output B

   
   

   B

   GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

   A

8. 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

9. OVERALL ANALYSIS AND TROUBLESHOOTING*

   
   

   1. Terminals of ECU

      Click here

   2. Data List / Active Test

      Click here

   3. Operation Check

      Click here

   4. Inspection

      Result
      Proceed to NEXT

   
   

   NEXT

10. REPAIR OR REPLACE

    Result
    Proceed to NEXT

    
    

    NEXT

11. CONFIRMATION TEST

    Result
    Proceed to NEXT

    
    

    NEXT

    END