SIMPLE INTELLIGENT PARKING ASSIST SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP

   Result
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2. CUSTOMER PROBLEM ANALYSIS

   
   

   • 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 for problem analysis:

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

   Result
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3. INSPECT AUXILIARY BATTERY VOLTAGE

   
   

   1. Measure the auxiliary battery voltage with the power switch off.

      Standard Voltage
      11 to 14 V

      Tech Tips

      If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.

      Result
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4. CHECK CAN COMMUNICATION SYSTEM*

   
   

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

      Click here

      Result
      Result Proceed to CAN communication system DTCs are not output. A CAN communication system DTCs are output. B

   
   

   B

   GO TO CAN COMMUNICATION SYSTEM Click here

   A

5. PROBLEM SYMPTOM CONFIRMATION

   Result
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6. CHECK DTC OUTPUT*

   
   

   1. Clear the DTCs.

      Click here

      
      Body Electrical > IPA/ICS/Clearance Sonar > Clear DTCs

   2. Recheck for DTCs.

      Click here

      
      Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes

      Result
      Result Proceed to DTCs are not output (Problem symptom occurs) A DTCs are not output (Problem symptom does not occur) B DTCs are output. C

   
   

   B

   SYMPTOM SIMULATION Click here

   C

   GO TO STEP 9 Click here

   A

7. DIAGNOSTIC TROUBLE CODE CHART

   
   

   1. Refer to Diagnostic Trouble Code Chart.

      Click here

      Note

      The clearance warning ECU assembly outputs DTCs for the following system. When DTCs other than those in Diagnostic Trouble Code Chart for the TOYOTA parking assist-sensor system are output, refer to Diagnostic Trouble Code Chart for the relevant systems.

      System	Proceed to
      TOYOTA Parking Assist-sensor System	Click here
      Intelligent Clearance Sonar System	Click here

      Result
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   GO TO STEP 11 Click here

8. SYMPTOM SIMULATION

   
   

   1. Refer to Symptom Simulation.

      Click here

      Result
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9. 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

      Tech Tips

      If the symptom does not recur and no DTCs are output, attempt to reproduce the symptoms.

      Click here

   
   

   B

   GO TO STEP 11 Click here

   A

10. OVERALL ANALYSIS AND TROUBLESHOOTING*

    
    

    1. Terminals of ECU

       Click here

    2. Diagnosis System

       Click here

    3. Data List / Active Test

       Click here

       Result
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11. CIRCUIT INSPECTION

    Result
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12. IDENTIFICATION OF PROBLEM

    Result
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13. REPAIR OR REPLACE

    Result
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14. CONFIRMATION TEST

    Result
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    END