ENTRY AND START SYSTEM (for Start Function) HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use these procedures to troubleshoot the push-button start function.

  • *: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


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  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 in the problem analysis:

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

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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.


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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.

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  7. PROBLEM SYMPTOMS TABLE


    1. Refer to the 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
      A

  8. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU Click here.

    2. Data List/Active Test Click here.


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  9. REPAIR OR REPLACE


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  10. CONFIRMATION TEST


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    END