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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Vehicle Proximity Notification System - Diagnostic Codes & Symptom Tests - (Hybrid) >> Vehicle Proximity Notification System >> Symptom Tests >> There is No Sound Made [02/2014 - 11/2016] >> Procedure

There is No Sound Made [02/2014 - 11/2016]: Procedure

  1. CHECK DTC OUTPUT 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Vehicle Proximity Notification System / Trouble Codes.

      Body Electrical > Vehicle Proximity Notification System > Trouble Codes 

    5. Check for DTCs.

      Result

      Result Proceed to
      DTC B1350 is not output A
      DTC B1350 is output B
      Communication with the Techstream is not possible C

    Result:  2

    B 

    GO TO DTC CHART B1350. Refer to  DTC B1350: Speaker Circuit [02/2014 - ]  

    Result:  3

    C 

    GO TO OTHER DIAGNOSIS PROCEDURE (Communication between Vehicle Proximity Notification System and Diagnostic Tool is not Possible). Refer to  Communication between Vehicle Proximity Notification System and Diagnostic Tool is not Possible [02/2014 - ]  

    Result:  1

    A 

    See step  2

  2. PERFORM ACTIVE TEST USING TECHSTREAM (Proximity Sound (Vehicle Stationary)) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Vehicle Proximity Notification System / Active Test.
    5. Perform the Active Test according to the display on the Techstream.

      Body Electrical > Vehicle Proximity Notification System > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Proximity Sound (Vehicle Stationary) Proximity sound (Vehicle stationary) OFF or ON Produces warning sound when vehicle is stopped

      Body Electrical > Vehicle Proximity Notification System > Active Test 

      Tester Display
      Proximity Sound (Vehicle Stationary)

      Result

      Result Proceed to
      The warning sound is produced A
      The warning sound is not produced B

    Result:  2

    B 

    See step  13

    Result:  1

    A 

    See step  3

  3. READ VALUE USING TECHSTREAM (Stop Light SW) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Vehicle Proximity Notification System / Data List.
    5. Read the Data List according to the display on the Techstream.

      Body Electrical > Vehicle Proximity Notification System > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Stop Light SW Stop light switch OFF or ON OFF: Brake pedal released
      ON: Brake pedal depressed      		 -

      Body Electrical > Vehicle Proximity Notification System > Data List 

      Tester Display
      Stop Light SW

      Result

      Result Proceed to
      The Techstream display changes according to brake pedal operation A
      The Techstream display does not change according to brake pedal operation B

    Result:  2

    B 

    See step  11

    Result:  1

    A 

    See step  4

  4. READ VALUE USING TECHSTREAM (Vehicle Speed) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Vehicle Proximity Notification System / Data List.
    5. Read the Data List according to the display on the Techstream.

      Body Electrical > Vehicle Proximity Notification System > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Vehicle Speed Vehicle speed Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) Almost the same as actual vehicle speed -

      Body Electrical > Vehicle Proximity Notification System > Data List 

      Tester Display
      Vehicle Speed

      Result

      Result Proceed to
      The Techstream display changes according to the vehicle speed A
      The Techstream display does not change according to the vehicle speed B

    Result:  2

    B 

    See step  9

    Result:  1

    A 

    See step  5

  5. READ VALUE USING TECHSTREAM (Permission Signal) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Vehicle Proximity Notification System / Data List.
    5. Read the Data List according to the display on the Techstream.

      Body Electrical > Vehicle Proximity Notification System > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Permission Signal Vehicle proximity notification system permission signal OFF or ON OFF: Vehicle proximity notification system operation prohibited (engine is operating or shift lever is in P).
      ON: Vehicle proximity notification system operation permitted (engine is stopped and shift lever is not in P).      		 -

      Body Electrical > Vehicle Proximity Notification System > Data List 

      Tester Display
      Permission Signal

      Result

      Result Proceed to
      The Techstream display changes according to the engine status or the shift lever position. A
      The Techstream display does not change according to the engine status or the shift lever position. B

    Result:  1

    A 

    REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER. Refer to  REMOVAL [02/2014 - ] 

    Result:  2

    B 

    See step  6

  6. CHECK VEHICLE APPROACHING SPEAKER CONTROLLER (PERMISSION SIGNAL) 
    1. Measure the voltage according to the value(s) in the table below.
      GTY443503Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Vehicle Approaching Speaker Controller)

      Standard Voltage

      Tester Connection Condition Specified Condition
      F17-11 (KOK) - F17-7 (GND) Power switch on (READY), shift lever in P Below 2.3 V
      Power switch on (READY), engine stopped and shift lever not in P 8 V or higher

      Result

      Result
      OK
      NG

    Result:  1

    OK 

    REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER. Refer to  REMOVAL [02/2014 - ] 

    Result:  2

    NG 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - POWER MANAGEMENT CONTROL ECU) 
    1. Disconnect the F17 vehicle approaching speaker controller connector.
    2. Disconnect the F15 power management control ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F17-11 (KOK) - F15-21 (KOK) Always Below 1 Ω
      F17-11 (KOK) or F15-21 (KOK) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  1

    OK 

    See step  8

  8. REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER 
    1. Replace the vehicle approaching speaker controller with a new or known good one.

      Refer to REMOVAL [02/2014 - ]

      OK

      The operation of the vehicle proximity notification system returns to normal.

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    END (VEHICLE APPROACHING SPEAKER CONTROLLER WAS DEFECTIVE) 

    Result:  2

    NG 

    REPLACE POWER MANAGEMENT CONTROL ECU. Refer to  REMOVAL [02/2014 - 11/2016] 

  9. CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - COMBINATION METER ASSEMBLY) 
    1. Disconnect the F17 vehicle approaching speaker controller connector.
    2. Disconnect the F22 combination meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F17-6 (SPD) - F22-3 (+S) Always Below 1 Ω
      F17-6 (SPD) or F22-3 (+S) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  1

    OK 

    See step  10

  10. CHECK COMBINATION METER ASSEMBLY 
    1. Reconnect the F17 vehicle approaching speaker controller connector.
    2. Reconnect the F22 combination meter assembly connector.
    3. Check the input waveform.
      GTY450251Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Combination Meter Assembly)
      1. Remove the combination meter assembly with the connector(s) still connected.
      2. Connect an oscilloscope to terminal F22-3 (+S) and body ground.
      3. Turn the power switch on (IG).
      4. Turn a wheel slowly.
      5. Check the signal waveform according to the condition(s) in the table below.
        Item Condition
        Tool setting 5 V/DIV., 20 ms./DIV.
        Vehicle condition Power switch on (IG), wheel being rotated

        OK

        The waveform is similar to that shown in the illustration.

        HINT: 

        When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER. Refer to  REMOVAL [02/2014 - ] 

    Result:  2

    NG 

    GO TO METER / GAUGE SYSTEM. Refer to  Speed Signal Circuit [02/2014 - 11/2015]  Refer to  Speed Signal Circuit [11/2015 - 11/2016] 

  11. CHECK STOP LIGHT OPERATION 
    1. Check that the stop lights come on when the brake pedal is depressed, and go off when the brake pedal is released.

      OK

      Condition Illumination Condition
      Brake pedal depressed On
      Brake pedal released Off

      Result

      Result
      OK
      NG

    Result:  2

    NG 

    GO TO LIGHTING SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [02/2014 - ] 

    Result:  1

    OK 

    See step  12

  12. CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - STOP LP RELAY OR STOP LIGHT SWITCH ASSEMBLY) 
    1. w/ Dynamic radar cruise control system
      1. Disconnect the F17 vehicle approaching speaker controller connector.
      2. Remove the STOP LP relay.
      3. Disconnect the M30 rear combination light assembly LH connector.
      4. Disconnect the M32 rear combination light assembly RH connector.
      5. Disconnect the Y1 center stop light set connector.
      6. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        F17-2 (STP) - Relay Terminal 3 Always Below 1 Ω
        F17-2 (STP) or Relay Terminal 3 - Body ground Always 10 kΩ or higher
    2. w/o Dynamic radar cruise control system
      1. Disconnect the F17 vehicle approaching speaker controller connector.
      2. Disconnect the A54 stop light switch assembly connector.
      3. Disconnect the A65 skid control ECU assembly connector.
      4. Disconnect the M30 rear combination light assembly LH connector.
      5. Disconnect the M32 rear combination light assembly RH connector.
      6. Disconnect the Y1 center stop light set connector.
      7. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        F17-2 (STP) - A54-1 Always Below 1 Ω
        F17-2 (STP) or A54-1 - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER. Refer to  REMOVAL [02/2014 - ] 

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  13. CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - VEHICLE APPROACHING SPEAKER ASSEMBLY) 
    1. Disconnect the F17 vehicle approaching speaker controller connector.
    2. Disconnect the A11 vehicle approaching speaker assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F17-3 (SP+) - A11-1 (+) Always Below 1 Ω
      F17-8 (SP-) - A11-2 (-) Always Below 1 Ω
      F17-3 (SP+) or A11-1 (+) - Body ground Always 10 kΩ or higher
      F17-8 (SP-) or A11-2 (-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  1

    OK 

    See step  14

  14. INSPECT VEHICLE APPROACHING SPEAKER CONTROLLER 
    1. Reconnect the F17 vehicle approaching speaker controller connector.
    2. Connect the Techstream to the DLC3.
    3. Turn the power switch on (IG).
    4. Turn the Techstream on.
    5. Enter the following menus: Body Electrical / Vehicle Proximity Notification System / Active Test.
    6. Perform the Active Test according to the display on the Techstream.

      Body Electrical > Vehicle Proximity Notification System > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Proximity Sound (Vehicle Stationary) Proximity sound (Vehicle stationary) OFF or ON Produces warning sound when vehicle is stopped
    7. Check the signal waveform according to the condition(s) in the table below.
      GTY428455Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Vehicle Approaching Speaker Assembly)
      Item Condition
      Tool setting 1 V/DIV., 200 ms./DIV.
      Vehicle condition Vehicle approaching speaker operating

      OK

      The waveform is similar to that shown in the illustration.

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER. Refer to  REMOVAL [02/2014 - ] 

    Result:  1

    OK 

    See step  15

  15. INSPECT VEHICLE APPROACHING SPEAKER ASSEMBLY 
    1. Remove the vehicle approaching speaker assembly.

      Refer to REMOVAL [02/2014 - ]

    2. Inspect the vehicle approaching speaker assembly.

      Refer to INSPECTION [02/2014 - ]

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [02/2014 - 11/2016] 

    Result:  2

    NG 

    REPLACE VEHICLE APPROACHING SPEAKER ASSEMBLY. Refer to  REMOVAL [02/2014 - ] 

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