Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001X8AF
Model Year Start: 2022 Model: GR Corolla Prod Date Range: [06/2021 - 09/2022]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): TERMINALS OF ECU; 2022 MY Corolla Corolla Hatchback GR Corolla [06/2021 - 09/2022]

TERMINALS OF ECU

HINT:

Check from the rear of the connector while it is connected to the components.

RADIO AND DISPLAY RECEIVER ASSEMBLY (for Hatchback Model)

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I71-1 (FR+) - I55-1 (GND1)

LA-G - W-B*1*3

LA-Y - W-B*2*3

G - W-B*4

Sound signal (Front right)*3

Sound signal (Right)*4

Audio system playing

A waveform synchronized with sound signals is output

I71-2 (FL+) - I55-1 (GND1)

LA-Y - W-B*3

W - W-B*4

Sound signal (Front left)*3

Sound signal (Left)*4

Audio system playing

A waveform synchronized with sound signals is output

I71-3 (RL+) - I55-1 (GND1)

V - W-B*3

L - W-B*4

Sound signal (Rear left)*3

Voice signal*4

Audio system playing*3

Voice guidance sounding*4

A waveform synchronized with sound signals is output*3

A waveform synchronized with voice signals is output*4

I71-4 (RR+) - I55-1 (GND1)*3

V - W-B

Sound signal (Rear right)

Audio system playing

A waveform synchronized with sound signals is output

I71-6 (FR-) - I55-1 (GND1)

LA-L - W-B*1*3

LA-B - W-B*2*3

R - W-B*4

Sound signal (Front right)*3

Sound signal (Right)*4

Audio system playing

A waveform synchronized with sound signals is output

I71-7 (FL-) - I55-1 (GND1)

LA-B - W-B*3

B - W-B*4

Sound signal (Front left)*3

Sound signal (Left)*4

Audio system playing

A waveform synchronized with sound signals is output

I71-8 (RL-) - I55-1 (GND1)

P - W-B*3

R - W-B*4

Sound signal (Rear left)*3

Voice signal*4

Audio system playing

A waveform synchronized with sound signals is output

I71-9 (RR-) - I55-1 (GND1)*3

P - W-B

Sound signal (Rear right)

Audio system playing

A waveform synchronized with sound signals is output

I55-1 (GND1) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

I55-4 (+B1) - I55-1 (GND1)

LA-SB - W-B

Power source (+B)

Always

11 to 14 V

I55-5 (TX1+)*4

R

AVC-LAN communication signal

-

-

I55-6 (TX1-)*4

L

AVC-LAN communication signal

-

-

I55-15 (ACC1) - I55-1 (GND1)

B - W-B

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch ACC

11 to 14 V

I55-21 (SW1) - I55-24 (SWG)

L - BR

Steering pad switch signal

No switch pushed

2.97 to 3.56 V

Seek+ switch pushed

0.27 to 0.35 V

Seek- switch pushed

0.86 to 1.03 V

Volume+ switch pushed

1.51 to 1.79 V

Volume- switch pushed

2.22 to 2.66 V

I55-22 (SW2) - I55-24 (SWG)

G - BR

Steering pad switch signal

No switch pushed

2.97 to 3.56 V

MODE switch pushed

0.27 to 0.35 V

Telephone switch pushed

1.51 to 1.79 V

Voice switch pushed

2.22 to 2.66 V

I55-24 (SWG) - I55-1 (GND1)

BR - W-B

Steering pad switch ground

Always

Below 1 V

I55-25 (MUT1) - I55-1 (GND1)*4

LG - W-B

Mute signal

Audio system playing

2.0 V or higher

Audio system changing modes

Below 1 V

I55-27 (SPD) - I55-1 (GND1)

V - W-B

Vehicle speed signal

See "Check Vehicle Signal" in Operation Check

2021 - 2023 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): OPERATION CHECK

-

I55-28 (REV) - I55-1 (GND1)

G - W-B

Reverse signal

See "Check Vehicle Signal" in Operation Check

2021 - 2023 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): OPERATION CHECK

-

I56-3 (TMUT) - I55-1 (GND1)*1*3

LG - W-B

Mute signal

Audio system playing

Above 2.0 V

Emergency call mode

Below 1 V

I56-5 (CNH1)*5

L

Local bus communication signal

-

-

I56-6 (CNL1)*5

Y

Local bus communication signal

-

-

I56-13 (CANH)

B

CAN communication signal

-

-

I56-14 (CANL)

W

CAN communication signal

-

-

I56-15 (ILL+) - I55-1 (GND1)

BR - W-B

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

11 to 14 V

I56-16 (ILL-) - I55-1 (GND1)

W-B - W-B

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

Pulse generation

I56-19 (IG) - I55-1 (GND1)

R - W-B

Power source (IG)

Ignition switch off

Below 1 V

Ignition switch ON

11 to 14 V

I56-20 (PKB) - I55-1 (GND1)

LG - W-B

Parking brake signal

See "Check Vehicle Signal" in Operation Check

2021 - 2023 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): OPERATION CHECK

-

I56-21 (MIN+) - I55-1 (GND1)

B - W-B*1

W - W-B*2

Microphone voice signal

See "Check Microphone" in Operation Check

2021 - 2023 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): OPERATION CHECK

-

I56-22 (MIN-) - I55-1 (GND1)

W - W-B*1

R - W-B *2

Microphone voice signal

See "Check Microphone" in Operation Check

2021 - 2023 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): OPERATION CHECK

-

I56-23 (MACC) - I55-1 (GND1)*2

B - W-B

Microphone power supply

Ignition switch off

Below 1 V

Ignition switch ACC

4 to 6 V

I56-24 (SGND) - Body ground

Shield - Body ground

Shield ground

Always

Below 1 V

I56-25 (SNS2) - I55-1 (GND1)

BR - W-B

Microphone connection detection signal

Always

Below 1 V

x2-1 (USV1)

-

Power source

-

-

x2-2 (US1-)

-

Data signal

-

-

x2-3 (US1+)

-

Data signal

-

-

x2-4 (UGD1)

-

Ground

-

-

x2-5 (USG1)

-

Shield ground

-

-

t2-1 (USB+)*1

-

Data signal

-

-

t2-2 (USB-)*1

-

Data signal

-

-

t2-3 (USBS)*1

-

Ground

-

-

I57-10 (USBV) - I57-11 (USBG)*1

G - V

DCM (telephone microphone assembly) power supply

Ignition switch off

Below 1 V

Ignition switch ACC

4.75 to 5.25 V

I57-11 (USBG) - Body ground*1

V

Ground

-

-

RA-5 (ANT+) - I55-1 (GND1)

- - W-B

Power source of antenna

Ignition switch ACC

Radio switch on and FM or AM selected

11 to 14 V

  • *1: w/ Manual (SOS) Switch
  • *2: w/o Manual (SOS) Switch
  • *3: w/o Stereo Component Amplifier
  • *4: w/ Stereo Component Amplifier
  • *5: w/ Audio Tab Function for Combination Meter Assembly

RADIO AND DISPLAY RECEIVER ASSEMBLY (for Sedan Model)

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I71-1 (FR+) - I55-1 (GND1)

LA-G - LA*1*3

LA-Y - LA*2*3

G - LA*4

Sound signal (Front right)*3

Sound signal (Right)*4

Audio system playing

A waveform synchronized with sound signals is output

I71-2 (FL+) - I55-1 (GND1)

LA-Y - LA*3

W - LA*4

Sound signal (Front left)*3

Sound signal (Left)*4

Audio system playing

A waveform synchronized with sound signals is output

I71-3 (RL+) - I55-1 (GND1)

V - LA*3

L - LA*4

Sound signal (Rear left)*3

Voice signal*4

Audio system playing*3

Voice guidance sounding*4

A waveform synchronized with sound signals is output*3

A waveform synchronized with voice signals is output*4

I71-4 (RR+) - I55-1 (GND1)*3

V - LA

Sound signal (Rear right)

Audio system playing

A waveform synchronized with sound signals is output

I71-6 (FR-) - I55-1 (GND1)

LA-L - LA*1*3

LA-B - LA*2*3

R - LA*4

Sound signal (Front right)*3

Sound signal (Right)*4

Audio system playing

A waveform synchronized with sound signals is output

I71-7 (FL-) - I55-1 (GND1)

LA-B - LA*3

B - LA*4

Sound signal (Front left)*3

Sound signal (Left)*4

Audio system playing

A waveform synchronized with sound signals is output

I71-8 (RL-) - I55-1 (GND1)

P - LA*3

R - LA*4

Sound signal (Rear left)*3

Voice signal*4

Audio system playing

A waveform synchronized with sound signals is output

I71-9 (RR-) - I55-1 (GND1)

P - LA*3

Sound signal (Rear right)

Audio system playing

A waveform synchronized with sound signals is output

I55-1 (GND1) - Body ground

LA - Body ground

Ground

Always

Below 1 V

I55-4 (+B1) - I55-1 (GND1)

LA-SB - LA

Power source (+B)

Always

11 to 14 V

I55-5 (TX1+)*4

R

AVC-LAN communication signal

-

-

I55-6 (TX1-)*4

L

AVC-LAN communication signal

-

-

I55-15 (ACC1) - I55-1 (GND1)

B - LA

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch ACC

11 to 14 V

I55-21 (SW1) - I55-24 (SWG)

L - BR

Steering pad switch signal

No switch pushed

2.97 to 3.56 V

Seek+ switch pushed

0.27 to 0.35 V

Seek- switch pushed

0.86 to 1.03 V

Volume+ switch pushed

1.51 to 1.79 V

Volume- switch pushed

2.22 to 2.66 V

I55-22 (SW2) - I55-24 (SWG)

G - BR

Steering pad switch signal

No switch pushed

2.97 to 3.56 V

MODE switch pushed

0.27 to 0.35 V

Telephone switch pushed

1.51 to 1.79 V

Voice switch pushed

2.22 to 2.66 V

I55-24 (SWG) - I55-1 (GND1)

BR - LA

Steering pad switch ground

Always

Below 1 V

I55-25 (MUT1) - I55-1 (GND1)*4

LG - LA

Mute signal

Audio system playing

2.0 V or higher

Audio system changing modes

Below 1 V

I55-27 (SPD) - I55-1 (GND1)

BR - LA*6

Vehicle speed signal

See "Check Vehicle Signal" in Operation Check

2021 - 2023 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): OPERATION CHECK

-

I55-28 (REV) - I55-1 (GND1)

G - LA

Reverse signal

See "Check Vehicle Signal" in Operation Check

2021 - 2023 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): OPERATION CHECK

-

I56-3 (TMUT) - I55-1 (GND1)*1*3

LG - LA

Mute signal

Audio system playing

Above 2.0 V

Emergency call mode

Below 1 V

I56-5 (CNH1)*7

P

Local bus communication signal

-

-

I56-6 (CNL1)*7

BR

Local bus communication signal

-

-

I56-13 (CANH)

B

CAN communication signal

-

-

I56-14 (CANL)

W

CAN communication signal

-

-

I56-15 (ILL+) - I55-1 (GND1)

P - LA

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

11 to 14 V

I56-16 (ILL-) - I55-1 (GND1)

L - LA

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

Pulse generation

I56-19 (IG) - I55-1 (GND1)

L - LA

Power source (IG)

Ignition switch off

Below 1 V

Ignition switch ON

11 to 14 V

I56-20 (PKB) - I55-1 (GND1)

GR - LA*5

Y - LA*6

Parking brake signal

See "Check Vehicle Signal" in Operation Check

2021 - 2023 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): OPERATION CHECK

-

I56-21 (MIN+) - I55-1 (GND1)

B - LA*1

W - LA*2

Microphone voice signal

See "Check Microphone" in Operation Check

2021 - 2023 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): OPERATION CHECK

-

I56-22 (MIN-) - I55-1 (GND1)

W - LA*1

R - LA *2

Microphone voice signal

See "Check Microphone" in Operation Check

2021 - 2023 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): OPERATION CHECK

-

I56-23 (MACC) - I55-1 (GND1)*2

B - LA

Microphone power supply

Ignition switch off

Below 1 V

Ignition switch ACC

4 to 6 V

I56-24 (SGND) - Body ground

Shield - Body ground

Shield ground

Always

Below 1 V

I56-25 (SNS2) - I55-1 (GND1)

BR - LA

Microphone connection detection signal

Always

Below 1 V

x2-1 (USV1)

-

Power source

-

-

x2-2 (US1-)

-

Data signal

-

-

x2-3 (US1+)

-

Data signal

-

-

x2-4 (UGD1)

-

Ground

-

-

x2-5 (USG1)

-

Shield ground

-

-

t2-1 (USB+)*1

-

Data signal

-

-

t2-2 (USB-)*1

-

Data signal

-

-

t2-3 (USBS)*1

-

Ground

-

-

I57-10 (USBV) - I57-11 (USBG)*1

G - V

DCM (telephone microphone assembly) power supply

Ignition switch off

Below 1 V

Ignition switch ACC

4.75 to 5.25 V

I57-11 (USBG) - Body ground*1

V

Ground

-

-

RA-5 (ANT+) - I55-1 (GND1)

- - LA

Power source of antenna

Ignition switch ACC

Radio switch on and FM or AM selected

11 to 14 V

  • *1: w/ Manual (SOS) Switch
  • *2: w/o Manual (SOS) Switch
  • *3: w/o Stereo Component Amplifier
  • *4: w/ Stereo Component Amplifier
  • *5: w/o Electric Parking Brake System
  • *6: w/ Electric Parking Brake System
  • *7: w/ Audio Tab Function for Combination Meter Assembly

STEREO COMPONENT AMPLIFIER ASSEMBLY (w/ Stereo Component Amplifier Assembly)

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I54-1 (+B) - I54-3 (GND)

B - W-B

Power source (+B)

Always

11 to 14 V

I54-3 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

I54-8 (WF2+) - I54-3 (GND)*2

P - W-B

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

I54-9 (RL+) - I54-3 (GND)

B - W-B*2

R - W-B*3

Sound signal (Rear Left)

Audio system playing

A waveform synchronized with sound signals is output

I54-10 (WF1+) - I54-3 (GND)*2

LG - W-B

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

I54-11 (RR+) - I54-3 (GND)

R - W-B

Sound signal (Rear Right)

Audio system playing

A waveform synchronized with sound signals is output

I54-12 (TWL+) - I54-3 (GND)

P - W-B*2

R - W-B*3

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

I54-13 (FL+) - I54-3 (GND)

G - W-B

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

I54-14 (TWR+) - I54-3 (GND)

P - W-B*1

Y - W-B*4

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

I54-15 (FR+) - I54-3 (GND)

Y - W-B

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

I54-23 (WF2-) - I54-3 (GND)*2

V - W-B

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

I54-24 (RL-) - I54-3 (GND)

G - W-B*2

W - W-B*3

Sound signal (Rear Left)

Audio system playing

A waveform synchronized with sound signals is output

I54-25 (WF1-) - I54-3 (GND)*2

L - W-B

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

I54-26 (RR-) - I54-3 (GND)

W - W-B

Sound signal (Rear Right)

Audio system playing

A waveform synchronized with sound signals is output

I54-27 (TWL-) - I54-3 (GND)

V - W-B*2

W - W-B*3

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

I54-28 (FL-) - I54-3 (GND)

L - W-B

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

I54-29 (TWR-) - I54-3 (GND)

BR - W-B*1

B - W-B*4

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

I54-30 (FR-) - I54-3 (GND)

B - W-B

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

I68-1 (MUTE) - I54-3 (GND)

LG - W-B

Mute signal

Ignition switch to ACC

Audio system playing

2.0 V or higher

Audio system changing modes

Below 1 V

I68-2 (L-) - I54-3 (GND)

B - W-B

Sound signal (Left)

Audio system playing

A waveform synchronized with sound signals is output

I68-3 (L+) - I54-3 (GND)

W - W-B

Sound signal (Left)

Audio system playing

A waveform synchronized with sound signals is output

I68-4 (R-) - I54-3 (GND)

R - W-B

Sound signal (Right)

Audio system playing

A waveform synchronized with sound signals is output

I68-5 (R+) - I54-3 (GND)

G - W-B

Sound signal (Right)

Audio system playing

A waveform synchronized with sound signals is output

I68-6 (SLD) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 V

I68-7 (TX-)

L

AVC-LAN communication signal

-

-

I68-8 (TX+)

R

AVC-LAN communication signal

-

-

I68-11 (SPD) - I54-3 (GND)

W - W-B*2

V - W-B*3

Vehicle speed signal

Ignition switch to ON

Wheel being rotated

Pulse generation

I68-12 (ACC) - I54-3 (GND)

R - W-B*2

BR - W-B*3

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch to ACC

11 to 14 V

I68-14 (II1-) - I54-3 (GND)

R - W-B

Voice signal

Voice guidance sounding

A waveform synchronized with voice signals is output

I68-15 (II1+) - I54-3 (GND)

L - W-B

Voice signal

Voice guidance sounding

A waveform synchronized with voice signals is output

I68-18 (SLD1) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 V

I68-24 (TMUT) - Body ground*1

L - Body ground

Mute signal

Ignition switch to ACC

Audio system playing

2.0 V or higher

Emergency call mode

Below 1 V

  • *1: w/ Manual (SOS) Switch

    *2: for Sedan Model

    *3: for Hatchback Model

    *4: w/o Manual (SOS) Switch

DCM (TELEMATICS TRANSCEIVER) (w/ Manual (SOS) Switch)

Click here 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for Gasoline Model): TERMINALS OF ECU

COMBINATION METER ASSEMBLY

Click here 2022 MY Corolla Corolla Hatchback GR Corolla [06/2021 - 09/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for Gasoline Model): TERMINALS OF ECU

SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

Click here 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): TERMINALS OF ECU

HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) (w/ Headup Display System)

Click here 2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; METER / GAUGE / DISPLAY: HEADUP DISPLAY SYSTEM: TERMINALS OF ECU