IMMOBILISER SYSTEM(w/o Smart Entry and Start 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	Whether the problem occurs at a specific location
     Under what conditions?	Whether the doors were locked or unlocked, whether the ignition switch was on, whether the engine was running
     How did it happen?	Problem symptoms

   Result
   Proceed to NEXT

   
   
   • 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.

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
4. Click here

   CRANK ENGINE FOR MORE THAN 10 SECONDS

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
5. Click here

   CHECK COMMUNICATION FUNCTION OF 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

6. Click here

   CHECK FOR DTC* (ECM)

   
   

   1. Check for DTCs and note any codes that are output.

      Tip:

      Before checking for DTCs, perform the "DTC Output Confirmation Operation" of each diagnostic procedure.

      
      
      1. Powertrain > Engine and ECT > Trouble Codes
      2. 
         
      3. 
         

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

   
   
   • AClick here
   • B

     GO TO DIAGNOSTIC TROUBLE CODE CHARTClick here

   • C

     GO TO DIAGNOSTIC TROUBLE CODE CHARTClick here

7. Click here

   CHECK FOR DTC* (TRANSPONDER KEY ECU ASSEMBLY)

   
   

   1. Check for DTCs and note any codes that are output.

      
      
      1. Body Electrical > Immobiliser > Trouble Codes
      2. 
         
      3. 
         
      Tip:

      Before checking for DTCs, perform the "DTC Output Confirmation Operation" of each diagnostic procedure.

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

   
   
   • AClick here
   • B

     GO TO DIAGNOSTIC TROUBLE CODE CHARTClick 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
   • BClick here

     GO TO STEP 10

9. Click here

   OVERALL ANALYSIS AND TROUBLESHOOTING*

   
   

   1. Data List / Active Test

      Click here

   2. Terminals of ECU

      Click here

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
10. Click here

    REPAIR OR REPLACE

    Tip:

    If the transponder key ECU assembly, ECM, or door control transmitter assembly are replaced, refer to Service Bulletin.

    Result
    Proceed to NEXT

    
    
    • NEXTClick here
11. Click here

    CHECK FOR DTC*

    
    

    1. Clear the DTCs.

       
       
       1. Body Electrical > Immobiliser > Clear DTCs
       2. 
          
       3. 
          
       
       
       1. Powertrain > Engine and ECT > Clear DTCs
       2. 
          
       3. 
          

    2. Check for DTCs.

       
       
       1. Body Electrical > Immobiliser > Trouble Codes
       2. 
          
       3. 
          
       
       
       1. Powertrain > Engine and ECT > Trouble Codes
       2. 
          
       3. 
          
       Tip:

       Before checking for DTCs, perform the "DTC Output Confirmation Operation" of each diagnostic procedure.

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

    
    
    • A

      END

    • B

      GO TO DIAGNOSTIC TROUBLE CODE CHARTClick here