Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001K2SG
Model Year Start: 2020 Model: RAV4 Prod Date Range: [10/2019 - 12/2021]
Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: TERMINALS OF ECU; 2020 - 2021 MY RAV4 RAV4 HV [10/2019 - 12/2021]

TERMINALS OF ECU

CHECK DCM (TELEPHONE TRANSCEIVER ASSEMBLY)

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G131-1 (+B) - G131-20 (E)

B - W-B*3

BR - W-B*4

Power source (+B)

Ignition switch off

11 to 14 V*3

10.5 to 16 V*4

G131-3 (SIG-) - G131-20 (E)

BR - W-B

Ground

Always

Below 1 V

G131-4 (IND1) - G131-20 (E)

BR - W-B

Manual (SOS) switch red indicator illumination signal

For 2 seconds after turning the ignition switch to ON

1 to 8.5 V

Ignition switch off

Below 1 V

G131-5 (MCVD) - G131-20 (E)

B - W-B

Telephone microphone assembly power supply

Ignition switch ON

4 to 6 V

Ignition switch off

Below 1 V

G131-6 (MCI+) - G131-20 (E)

W - W-B

Receive microphone voice signal

Voice being input to telephone microphone assembly

A waveform synchronized with microphone voice signal is input

G131-7 (MCI-) - G131-20 (E)

R - W-B

Receive microphone voice signal

Always

Below 1 V

G131-13 (GSW) - G131-20 (E)

BE - W-B

Collision detection signal

Ignition switch ON

Pulse generation (Refer to waveform 1)

G131-14 (MUTE) - G131-20 (E)

BE - W-B

MUTE Signal

Audio system playing

3.5 V or higher

Emergency call mode

Below 1 V

G131-15 (USBV) - G131-20 (E)

L - W-B

DCM (telephone transceiver assembly) power supply signal

Ignition switch ON

4.75 to 5.25 V

Ignition switch off

Below 1 V

G131-16 (MCO+) - G131-20 (E)

SB - W-B

Microphone voice signal

Voice being input to telephone microphone assembly

A waveform synchronized with microphone voice signal is input

G131-17 (VOT+) - G131-20 (E)

R - W-B

Sent voice signal

Calling while using the operator service

A waveform synchronized with the received voice is output

G131-18 (VOR+) - G131-20 (E)

B - W-B

Receive voice signal

Receiving a call while using the operator service

A waveform synchronized with the sent voice is output

G131-19 (IG2) - G131-20 (E)

LG - W-B*3

BE - W-B*4

Power source (IG)

Ignition switch ON

11 to 14 V*3

10.5 to 16 V*4

Ignition switch off

Below 1 V

G131-20 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

G131-21 (SIG1) - G131-3 (SIG-)

V - BR

Manual (SOS) switch button condition signal

Manual (SOS) switch not pressed

1.3 to 1.9 V

Manual (SOS) switch pressed

0.5 to 0.8 V

G131-22 (IND2) - G131-20 (E)

LG - W-B

Manual (SOS) switch green indicator illumination signal

For 2 seconds after turning the ignition switch to ON

1 to 8.5 V

Ignition switch off

Below 1 V

G131-23 (SGND) - G131-20 (E)

Shielded - W-B

Shield ground

Always

Below 1 Ω

G131-25 (CANP)

R

CAN communication signal

-

-

G131-26 (CANN)

W

CAN communication signal

-

-

G131-31 (USBG) - Body ground

GR - Body ground

Shield ground

Always

Below 1 Ω

G131-32 (MCO-) - G131-20 (E)

V - W-B

Microphone voice signal

Always

Below 1 V

G131-33 (VOT-) - G131-20 (E)

G - W-B

Sent voice signal

Calling while using the operator service

A waveform synchronized with the received voice is output

G131-34 (VOR-) - G131-20 (E)

W - W-B

Receive voice signal

Receiving a call while using the operator service

A waveform synchronized with the sent voice is output

G133-1 (SPI+) - G131-20 (E)

LA-LG - W-B*1

LA-W - W-B*2

Sound signal

Audio system playing

A waveform synchronized with sound signals is output

G133-2 (SPI-) - G131-20 (E)

LA-L - W-B*1

LA-B - W-B*2

Sound signal

Audio system playing

A waveform synchronized with sound signals is output

G133-3 (SPO+) - G131-20 (E)

LA-BE - W-B

Sound signal

Audio system playing, or emergency call mode

A waveform synchronized with sound signals is output

G133-4 (SPO-) - G131-20 (E)

LA-R - W-B*1

LA-L - W-B*2

Sound signal

Audio system playing, or emergency call mode

A waveform synchronized with sound signals is output

G134-1 (USB-)

#

USB communication line

-

-

G134-2 (USB+)

#

USB communication line

-

-

G134-3 (USBS) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 Ω

  • *1: for 9 Speakers
  • *2: for 6 Speakers
  • *3: w/o Stop and Start System
  • *4: w/ Stop and Start System
  • #: There is no wire color information

(a) Oscilloscope waveform:

(1) Waveform 1

Item

Condition

Tester connection

G131-13 (GSW) - G131-20 (E)

Tool setting

5.0 V/DIV., 20 ms/DIV.

Vehicle condition

Ignition switch ON

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

w/o Navigation System: Click here 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: TERMINALS OF ECU

w/ Navigation System: Click here 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: TERMINALS OF ECU 2021 - 2022 MY RAV4 RAV4 HV [08/2020 - 10/2022]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: TERMINALS OF ECU