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Home >> Toyota >> 2013 >> Prius Four >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Vehicle Proximity Notification System (Diagnostics & Circuit Tests) (Except Plug-In) >> Vehicle Proximity Notification System >> How To Proceed With Troubleshooting >> How To Proceed With Troubleshooting
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How To Proceed With Troubleshooting

HINT: 

Use the following procedure to troubleshoot the vehicle proximity notification system.

  1. VEHICLE BROUGHT TO WORKSHOP 

    NEXT: Go to next step 

  2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK 

    NEXT: Go to next step 

  3. INSPECT AUXILIARY BATTERY VOLTAGE 
    1. Measure the auxiliary battery voltage with the power switch off.

      Standard Voltage

      11 to 14 V

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

      NEXT: Go to next step 

  4. PROBLEM SYMPTOMS TABLE 

    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   6 

    A: Go to next step 

  5. OVERALL ANALYSIS AND TROUBLESHOOTING 
    1. Terminals of ECU. Refer to TERMINALS OF ECU 

      NEXT: Go to next step 

  6. REPAIR OR REPLACE 

    NEXT: Go to next step 

  7. CONFIRMATION TEST 

    NEXT → END