LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2017 >> Prius Prime Advanced >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System - Circuit And Symptom Tests >> Navigation System >> Symptom Tests >> Confirm Vehicle Headunit Functionality [09/2016 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Confirm Vehicle Headunit Functionality [09/2016 - ]: Procedure

  1. CHECK CUSTOMER'S CELLULAR PHONE COMPATIBILITY 
    1. Check if the cellular phone is compatible (Refer to http://www.toyota.com/entune/).

      Result

      Result Proceed to
      Cellular phone is compatible. A
      Cellular phone is not compatible. B

      HINT: 

      It is important to check the cellular phone compatibility charts carefully:

      • Some apps may only work on cellular phones.
      • Some apps may only work when paired to a vehicle.
      • Some cellular phones do not support all features.

    Result: 

    RECOMMEND COMPATIBLE CELLULAR PHONE 

    Result: 

    See step  2

  2. CHECK CELLULAR PHONE SIGNAL 
    1. A 3G or higher connection is required for proper Entune App Suite functionality. If a 3G or higher connection is not available, some applications may not function properly. ("Wi-Fi" is not an approved connection for Entune App Suite services.)

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK IF THE CUSTOMER'S CELLULAR PHONE CAN BE PAIRED TO THE VEHICLE 
    1. Pair the customer's cellular phone to the vehicle.

      Result

      Result Proceed to
      Cellular phone is not successfully paired. A
      Cellular phone is successfully paired. B

    Result: 

    See step  5

    Result: 

    See step  4

  4. CHECK THAT A KNOWN GOOD CELLULAR PHONE CAN BE PAIRED TO THE VEHICLE 
    1. Check that a known good cellular phone can be paired to the customer's vehicle.

      Result

      Result Proceed to
      Cellular phone is successfully paired. A
      Cellular phone is not successfully paired. B

      HINT: 

      For instructions on how to reset the cellular phone, refer to the appropriate manufacturer's website.

    Result: 

    RESET CUSTOMER'S CELLULAR PHONE (REMOVE BATTERY) AND TRY AGAIN 

    Result: 

    See step  12

  5. CHECK ENTUNE APP SUITE APP FUNCTION WHEN PAIRED 
    1. Proceed to the appropriate step based on the customer concern in the table below.

      Result

      Result Proceed to
      Head unit data apps (e.g. internet search) do not function properly. A
      Head unit internet radio apps do not function properly. B

      HINT: 

      This is a head unit functionality check. Ensure that a cellular phone is paired to the vehicle.

    Result: 

    See step  9

    Result: 

    See step  6

  6. CHECK DATA APP FUNCTION ON THE HEAD UNIT 
    1. Make sure that the customer's cellular phone is paired with the vehicle.
    2. Start an internet search app on the head unit.
    3. Check if a search can be made.

      Result

      Result Proceed to
      Head unit data app does not function properly. A
      Head unit data app functions properly. B

    Result: 

    END (NO PROBLEM WAS FOUND) 

    Result: 

    See step  7

  7. RECORD ERROR MESSAGES IF PRESENT 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  8

  8. CHECK ENTUNE APP SUITE SEARCH FUNCTION ON THE HEAD UNIT USING A KNOWN GOOD CELLULAR PHONE 
    1. Make sure that a known good cellular phone is paired with the vehicle.
    2. Start an Internet search app on the head unit.
    3. Check if a search can be made.

      Result

      Result Proceed to
      Head unit data app functions properly. A
      Head unit data app does not function properly. B

      HINT: 

      For instructions on how to reset the cellular phone, refer to the appropriate manufacturer's website.

    Result: 

    RESET CUSTOMER'S CELLULAR PHONE (REMOVE BATTERY) AND TRY AGAIN 

    Result: 

    See step  12

  9. CHECK INTERNET RADIO FUNCTION ON THE HEAD UNIT USING THE CUSTOMER'S CELLULAR PHONE 
    1. Make sure that the customer's cellular phone is paired with the vehicle.
    2. Start an Internet radio app on the head unit.
    3. Check that the audio can be heard through the vehicle's speakers.

      Result

      Result Proceed to
      Head unit internet radio app does not function properly. A
      Head unit Internet radio app functions properly. B

    Result: 

    END (NO PROBLEM WAS FOUND) 

    Result: 

    See step  10

  10. RECORD ERROR MESSAGES IF PRESENT 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  11

  11. CHECK INTERNET RADIO FUNCTION ON THE HEAD UNIT USING A KNOWN GOOD CELLULAR PHONE 
    1. Make sure that a known good cellular phone is paired with the vehicle.
    2. Start an Internet radio app on the head unit.
    3. Check that the audio can be heard through the speakers.

      Result

      Result Proceed to
      Head unit Internet radio app does not function properly using a known good cellular phone. A
      Head unit Internet radio app functions properly using known good cellular phone. B

      HINT: 

      For instructions on how to reset the cellular phone, refer to the appropriate manufacturer's website.

    Result: 

    RESET CUSTOMER'S CELLULAR PHONE (REMOVE BATTERY) AND TRY AGAIN 

    Result: 

    See step  12

  12. PERFORM UNTUNE APP SUITE RESET PROCEDURE 
    1. Perform Untune APP Suite reset procedure.

      Refer to OPERATION CHECK [09/2016 - 05/2019] , or refer to OPERATION CHECK [05/2019 - ]

      Result

      Result Proceed to
      The problem symptom has been repaired. A
      The problem symptom has not been repaired. B

    Result: 

    END 

    Result: 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [09/2016 - 05/2019]  , or refer to  PROBLEM SYMPTOMS TABLE [05/2019 - ]