RM38T0EC _59 Vehicle Exterior _144216 ACOUSTIC VEHICLE ALERTING SYSTEM _0605971 ACOUSTIC VEHICLE ALERTING SYSTEM C

ACOUSTIC VEHICLE ALERTING SYSTEM  ACOUSTIC VEHICLE ALERTING SYSTEM  B135013  Acoustic Vehicle Alerting Speaker Circuit Open  B135019  Acoustic Vehicle Alerting Speaker Circuit Current Above Threshold  


DESCRIPTION

The vehicle approaching speaker assembly circuit consists of the vehicle approaching speaker controller and vehicle approaching speaker assembly.

This DTC is stored when a malfunction is detected in the vehicle approaching speaker assembly circuit or vehicle approaching speaker controller.

DTC No. Detection Item DTC Detection Condition Trouble Area
B135013 Acoustic Vehicle Alerting Speaker Circuit Open
Detection condition:
1.

The ignition switch is ON.

2.

Power source voltage is 10 V or more.


Malfunction status:

When ECU output sound signal is being monitored with warning sound not being output, a vehicle approaching speaker assembly circuit open, short or short to ground is detected.


Malfunction duration:

5 seconds or more


·

Vehicle approaching speaker controller

·

Vehicle approaching speaker assembly

·

Harness or connector


B135019 Acoustic Vehicle Alerting Speaker Circuit Current Above Threshold
Detection condition:
1.

The ignition switch is ON.

2.

Power source voltage is 9 V or more.


Malfunction status:

When vehicle proximity warning sound output conditions are met, an internal malfunction is continuously detected in the vehicle approaching speaker controller.


Malfunction duration:

1 second or more


·

Vehicle approaching speaker controller

·

Vehicle approaching speaker assembly

·

Harness or connector



WIRING DIAGRAM

E495542E08
0.427,1.75 0.885,1.948 0.458,0.198 10 false A191 0.417,1.927 3.26,2.344 2.844,0.417 10 false Vehicle Approaching Speaker Assembly 3.74,2.083 5.271,2.385 1.531,0.302 10 false I281 3.75,2.25 6.354,2.563 2.604,0.313 10 false Vehicle Approaching Speaker Controller 2.104,0.979 2.563,1.177 0.458,0.198 10 false 2 2.104,1.365 2.563,1.563 0.458,0.198 10 false 1 4.75,0.979 5.208,1.177 0.458,0.198 10 false 3 4.75,1.365 5.208,1.563 0.458,0.198 10 false 4 4.958,1.073 5.417,1.271 0.458,0.198 10 false SP+ 4.958,1.469 5.417,1.667 0.458,0.198 10 false SP- 1.906,1.469 2.365,1.667 0.458,0.198 10 false - 1.885,1.073 2.344,1.271 0.458,0.198 10 false +

PROCEDURE

1.INSPECT VEHICLE APPROACHING SPEAKER ASSEMBLY

Click hereVehicle Exterior>ACOUSTIC VEHICLE ALERTING SYSTEM>VEHICLE APPROACHING SPEAKER>INSPECTION

Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER ASSEMBLY - VEHICLE APPROACHING SPEAKER CONTROLLER)

NG

REPLACE VEHICLE APPROACHING SPEAKER ASSEMBLY

Click hereVehicle Exterior>ACOUSTIC VEHICLE ALERTING SYSTEM>VEHICLE APPROACHING SPEAKER>REMOVAL


2.CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER ASSEMBLY - VEHICLE APPROACHING SPEAKER CONTROLLER)
a.

Disconnect the A191 vehicle approaching speaker assembly connector.


b.

Disconnect the I281 vehicle approaching speaker controller connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A191-2 (+) - I281-3 (SP+) Always Below 1 Ω
A191-1 (-) - I281-4 (SP-) Always Below 1 Ω
A191-2 (+) or I281-3 (SP+) - Body ground Always 10 kΩ or higher
A191-1 (-) or I281-4 (SP-) - Body ground Always 10 kΩ or higher
A191-2 (+) - A191-1 (-) Always 10 kΩ or higher


Result:
Proceed to
OK
NG




OK

REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER

Click hereVehicle Exterior>ACOUSTIC VEHICLE ALERTING SYSTEM>VEHICLE APPROACHING SPEAKER ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR