VEHICLE PROXIMITY NOTIFICATION SYSTEM There is No Sound Made

DESCRIPTION

The hybrid vehicle control ECU controls the vehicle approaching speaker assembly based on received signals.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. CHECK DTC OUTPUT

   
   

   1. Turn the power switch off.

   2. Connect the GTS to the DLC3.

   3. Turn the power switch on (IG).

   4. Turn the GTS on.

   5. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

      
      Powertrain > Hybrid Control > Trouble Codes

   6. Check for DTCs.

      Result
      Result Proceed to Hybrid control system DTCs are not output A Hybrid control system DTCs are output B

   
   

   B

   GO TO HYBRID CONTROL SYSTEM Click here

   A

2. READ VALUE USING GTS (Operation Cancel SW)

   
   

   1. Turn the power switch off.

   2. Connect the GTS to the DLC3.

   3. Turn the power switch on (IG).

   4. Turn the GTS on.

   5. Enter the following menus: Body Electrical / Vehicle Proximity Notification System / Data List.

   6. Read the Data List according to the display on the GTS.

      
      Body Electrical > Vehicle Proximity Notification System > Data List

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      Operation Cancel SW	Pattern select switch assembly (vehicle approaching speaker switch) signal	OFF or ON	OFF: Pattern select switch assembly (vehicle approaching speaker switch) is not pressed. ON: Pattern select switch assembly (vehicle approaching speaker switch) is pressed.	-

      
      Body Electrical > Vehicle Proximity Notification System > Data List

      Tester Display
      Operation Cancel SW

      Result
      Result Proceed to The GTS display changes according to the operation of the vehicle approaching speaker switch A The GTS display does not change according to the operation of the vehicle approaching speaker switch B

   
   

   B

   INSPECT PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH) Click here

   A

3. PERFORM ACTIVE TEST USING GTS (Proximity Sound (Vehicle Stationary))

   
   

   1. Turn the power switch off.

   2. Connect the GTS to the DLC3.

   3. Turn the power switch on (IG).

   4. Turn the GTS 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 GTS.

      
      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

   
   

   A

   REPLACE HYBRID VEHICLE CONTROL ECU Click here

   B

4. INSPECT VEHICLE APPROACHING SPEAKER ASSEMBLY

   
   

   1. Remove the vehicle approaching speaker assembly.

      Click here

   2. Inspect the vehicle approaching speaker assembly.

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE VEHICLE APPROACHING SPEAKER ASSEMBLY Click here

   OK

5. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - VEHICLE APPROACHING SPEAKER ASSEMBLY)

   
   

   1. Disconnect the A50 hybrid vehicle control ECU connector.

   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition A50-19 (SPK+) - A16-1 (+) Always Below 1 Ω A50-9 (SPK-) - A16-2 (-) Always Below 1 Ω A50-19 (SPK+) or A16-1 (+) - Body ground Always 10 kΩ or higher A50-9 (SPK-) or A16-2 (-) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE HYBRID VEHICLE CONTROL ECU Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

6. INSPECT PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH)

   
   

   1. Remove the pattern select switch assembly (vehicle approaching speaker switch).

      Click here

   2. Inspect the pattern select switch assembly (vehicle approaching speaker switch).

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH) Click here

   OK

7. CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH) - IG POWER SOURCE)

   
   

   1. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition F44-6 (IG) - Body ground Power switch on (IG) 11 to 14 V Power switch off Below 1 V

      Result
      Proceed to OK NG

   
   

   NG

   CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH) - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Click here

   OK

8. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH))

   
   

   1. Disconnect the F3 hybrid vehicle control ECU connector.

   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition F3-22 (SW) - F44-14 (ECU) Always Below 1 Ω F3-22 (SW) or F44-14 (ECU) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE HYBRID VEHICLE CONTROL ECU Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

9. CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH) - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

   
   

   1. Disconnect the 3D instrument panel junction block assembly connector.

   2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition F44-6 (IG) - 3D-30 Always Below 1 Ω F44-6 (IG) or 3D-30 - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR