Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM1000000026XMP
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): TERMINALS OF ECU; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]

TERMINALS OF ECU

HINT:

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

RADIO AND DISPLAY RECEIVER ASSEMBLY

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

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

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)

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)

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

Sound signal (Rear right)

Audio system playing

A waveform synchronized with sound signals is output

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

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)

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)

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)

Sound signal (Rear right)

Audio system playing

A waveform synchronized with sound signals is output

I55-1 (GND1) - Body ground

Ground

Always

Below 1 V

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

Power source (+B)

Always

11 to 14 V

I55-5 (TX1+)*4

AVC-LAN communication signal

-

-

I55-6 (TX1-)*4

AVC-LAN communication signal

-

-

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

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch ACC

11 to 14 V

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

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)

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)

Steering pad switch ground

Always

Below 1 V

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

Mute signal

Audio system playing

2.0 V or higher

Audio system changing modes

Below 1 V

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

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)

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

Mute signal

Audio system playing

Above 2.0 V

Emergency call mode

Below 1 V

I56-5 (CNH1)*5

Local bus communication signal

-

-

I56-6 (CNL1)*5

Local bus communication signal

-

-

I56-13 (CANH)

CAN communication signal

-

-

I56-14 (CANL)

CAN communication signal

-

-

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

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)

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)

Power source (IG)

Ignition switch off

Below 1 V

Ignition switch ON

11 to 14 V

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

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)

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)

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

Microphone power supply

Ignition switch off

Below 1 V

Ignition switch ACC

4 to 6 V

I56-24 (SGND) - Body ground

Shield ground

Always

Below 1 V

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

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

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

Ground

-

-

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

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

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

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

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

Power source (+B)

Always

11 to 14 V

I54-3 (GND) - Body ground

Ground

Always

Below 1 V

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

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Rear Left)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Rear Right)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Rear Left)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Rear Right)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

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

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)

Sound signal (Left)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Left)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Right)

Audio system playing

A waveform synchronized with sound signals is output

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

Sound signal (Right)

Audio system playing

A waveform synchronized with sound signals is output

I68-6 (SLD) - Body ground

Shield ground

Always

Below 1 V

I68-7 (TX-)

AVC-LAN communication signal

-

-

I68-8 (TX+)

AVC-LAN communication signal

-

-

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

Vehicle speed signal

Ignition switch to ON

Wheel being rotated

Pulse generation

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

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch to ACC

11 to 14 V

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

Voice signal

Voice guidance sounding

A waveform synchronized with voice signals is output

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

Voice signal

Voice guidance sounding

A waveform synchronized with voice signals is output

I68-18 (SLD1) - Body ground

Shield ground

Always

Below 1 V

I68-24 (TMUT) - Body ground*

Mute signal

Ignition switch to ACC

Audio system playing

2.0 V or higher

Emergency call mode

Below 1 V
  • *: w/ Manual (SOS) Switch

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

Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for Gasoline Model): TERMINALS OF ECU

COMBINATION METER ASSEMBLY

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (except 12.3 Inch Display): TERMINALS OF ECU

SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System TMMMS Made): TERMINALS OF ECU