Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001RDME
Model Year Start: 2021 Model: Avalon HV Prod Date Range: [08/2020 -           ]
Title: ACOUSTIC VEHICLE ALERTING SYSTEM: ACOUSTIC VEHICLE ALERTING SYSTEM: TERMINALS OF ECU; 2021 - 2022 MY Avalon Avalon HV [08/2020 -        ]

TERMINALS OF ECU

CHECK VEHICLE APPROACHING SPEAKER CONTROLLER

(a) Disconnect the G119 vehicle approaching speaker controller connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G119-1 (IG) - Body ground

LA-B - Body ground

IG power supply

Power switch on (IG)

11 to 14 V

Power switch off

Below 1 V

G119-6 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Connect the G119 vehicle approaching speaker controller connector.

(d) Measure the check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G119-7 (SP+) - G119-8 (SP-)

P - LG

Vehicle approaching speaker output

Vehicle approaching speaker operating

A waveform synchronized with the sound is output.

(See Waveform 1)

G119-3 (CANH) - G119-6 (GND)

Y - W-B

CAN communication line

Power switch on (IG)

Pulse generation

G119-4 (CANL) - G119-6 (GND)

W - W-B

CAN communication line

Power switch on (IG)

Pulse generation

(1) Waveform 1

Item

Condition

Tester Connection

G119-7 (SP+) - G119-8 (SP-)

Tool Setting

1 V/DIV., 500 ms./DIV.

Condition

Vehicle approaching speaker operating