ENTRY AND START SYSTEM(for Start Function) 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, whether the engine has started
     How did it happen?	Problem symptoms*

   Result
   Result NEXT

   
   

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3. INSPECT BATTERY VOLTAGE

   Standard voltage
   11 to 14 V

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

   Result
   Result NEXT

   
   

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4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

   
   

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

      Result
      Result Proceed to CAN DTC is not output A CAN DTC is output for LHD with Entry and Start System B for RHD with Entry and Start System C

   
   

   B

   GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

   C

   GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

   A

5. CHECK FOR DTC*

   
   

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

      Click here

   2. Clear the DTCs.

      Click here

   3. Recheck for DTCs.

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

   
   

   B

   GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

   A

6. INSPECT BASIC OPERATION

   
   

   • *1: for Automatic Transaxle

   • *2: for Manual Transaxle

   
   

   1. Check that the engine can be started by the basic operation.

      
      

      1. Push the engine switch when the brake pedal*1 or clutch pedal*2 is depressed and the shift lever is in P*1. Check that the engine starts.

         OK
         Engine starts.

   2. Check that the engine switch mode can be changed by pushing the engine switch.

      
      

      1. Without depressing the brake pedal*1 or clutch pedal*2, push the engine switch repeatedly. Check that the power source mode turns from off to on (ACC) to on (IG) and back to off.

         OK
         Power source mode changes as described above.

      2. With the brake pedal*1 or clutch pedal*2 depressed and the shift lever in P*1, push the engine switch. Check that the engine starts normally from any power source mode status.

         OK
         Engine starts normally from any power source mode status.

      Result
      Proceed to NEXT

   
   

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7. PROBLEM SYMPTOMS TABLE

   
   

   1. Refer to Problem Symptoms Table.

      Click here

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

   
   

   B

   GO TO STEP 9 Click here

   A

8. OVERALL ANALYSIS AND TROUBLESHOOTING*

   
   

   1. Terminals of ECU

      Click here

   2. Data List / Active Test

      Click here

      Result
      Proceed to NEXT

   
   

   NEXT

9. REPAIR OR REPLACE

   Result
   Proceed to NEXT

   
   

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10. CONFIRMATION TEST

    Result
    Proceed to NEXT

    
    

    NEXT

    END