REMOTE ENGINE STARTER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

  • Use the following procedure to troubleshoot the remote engine starter system.

  • *: Use the Techstream.

  1. VEHICLE BROUGHT TO WORKSHOP

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  2. CUSTOMER PROBLEM ANALYSIS

    Tech Tips

    • When 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 problem analysis:

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

      NEXT

  4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

    1. Use the Techstream to check if the CAN communication system is functioning normally Click here.

      Result
      Result Proceed to
      ECU is connected, communication is normal A
      ECU is connected, communication is malfunctioning B
      B

      GO TO CAN COMMUNICATION SYSTEM Click here

      A

  5. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

    1. Use the Techstream to check if the LIN communication system is functioning normally Click here.

      Result
      Result Proceed to
      No DTCs are output A
      LIN communication system DTC is output B
      B

      GO TO LIN COMMUNICATION SYSTEM Click here

      A

  6. CHECK DTC OUTPUT (SMART KEY SYSTEM (FOR ENTRY FUNCTION))*

    1. Clear the DTCs Click here.

    2. Recheck for DTCs.

      Result
      Result Proceed to
      No DTCs are output A
      Smart key system (for entry function) DTC is output B
      B

      GO TO SMART KEY SYSTEM (FOR ENTRY FUNCTION) Click here

      A

  7. CHECK DTC OUTPUT (SMART KEY SYSTEM (FOR START FUNCTION))*

    1. Clear the DTCs Click here.

    2. Recheck for DTCs.

      Result
      Result Proceed to
      No DTCs are output A
      Smart key system (for start function) DTC is output B
      B

      GO TO SMART KEY SYSTEM (FOR START FUNCTION) Click here

      A

  8. CHECK DTC OUTPUT (ENGINE IMMOBILISER SYSTEM)*

    1. Clear the DTCs Click here.

    2. Recheck for DTCs.

      Result
      Result Proceed to
      No DTCs are output A
      Engine immobiliser system DTC is output B
      B

      GO TO ENGINE IMMOBILISER SYSTEM Click here

      A

  9. CHECK DTC OUTPUT (SFI SYSTEM)*

    1. Clear the DTCs Click here for 2GR-FE, Click here for 2AR-FE).

    2. Recheck for DTCs.

      Result
      Result Proceed to
      No DTCs are output A
      SFI system DTC is output (for 2GR-FE) B
      SFI system DTC is output (for 2AR-FE) C
      B

      GO TO SFI SYSTEM Click here

      C

      GO TO SFI SYSTEM Click here

      A

  10. CHECK DTC OUTPUT (REMOTE ENGINE STARTER SYSTEM)*

    1. Clear the DTCs Click here.

    2. Recheck for DTCs.

      Result
      Result Proceed to
      No DTCs are output A
      Remote engine starter system DTC is output B
      B

      GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

      A

  11. 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

      Go to step 13
      A

  12. OVERALL ANALYSIS AND TROUBLESHOOTING

    1. Terminals of ECU Click here

    2. Operation Check Click here

    3. Diagnosis System* Click here

    4. Data List / Active Test* Click here

      NEXT

  13. REPAIR OR REPLACE

    NEXT

  14. CONFIRMATION TEST

    NEXT
    END