| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001N24I |
| Model Year Start: 2021 | Model: GR Corolla | Prod Date Range: [04/2020 - 06/2021] |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): TERMINALS OF ECU; 2021 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 06/2021] | ||
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) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
I71-1 (FR+) - I55-1 (GND1) |
LA-G - W-B*1 LA-Y - W-B*2 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 LA-B - W-B*2 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) |
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) |
SB - W-B*5 LA-SB - W-B*6 |
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*5 BR - W-B*6 |
Vehicle speed signal |
See "Check Vehicle Signal" in Operation Check Click here
|
- |
|
I55-28 (REV) - I55-1 (GND1) |
G - W-B |
Reverse signal |
See "Check Vehicle Signal" in Operation Check Click here
|
- |
|
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)*9 |
L*5 P*6 |
Local bus communication signal |
- |
- |
|
I56-6 (CNL1)*9 |
Y*5 BR*6 |
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*5 P - W-B*6 |
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*5 L - W-B*6 |
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*5 L - W-B*6 |
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*5*8 GR - W-B*6*7 Y - W-B*6*8 |
Parking brake signal |
See "Check Vehicle Signal" in Operation Check Click here
|
- |
|
I56-21 (MIN+) - I55-1 (GND1) |
B - W-B*1 W - W-B*2 |
Microphone voice signal |
See "Check Microphone" in Operation Check Click here
|
- |
|
I56-22 (MIN-) - I55-1 (GND1) |
W - W-B*1 R - W-B *2 |
Microphone voice signal |
See "Check Microphone" in Operation Check Click here
|
- |
|
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: for 6 Speakers
- *4: except 6 Speakers
- *5: for Hatchback Model
- *6: for Sedan Model
- *7: w/o Electric Parking Brake System
- *8: w/ Electric Parking Brake System
- *9: w/Audio Tab Function for Combination Meter Assembly
STEREO COMPONENT AMPLIFIER ASSEMBLY (except 6 Speakers)
|
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) |
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 |
Sound signal (Rear Left) |
Audio system playing |
A waveform synchronized with sound signals is output |
|
I54-10 (WF1+) - I54-3 (GND) |
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 |
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*2 |
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) |
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 |
Sound signal (Rear Left) |
Audio system playing |
A waveform synchronized with sound signals is output |
|
I54-25 (WF1-) - I54-3 (GND) |
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 |
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*2 |
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 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 |
Shield - 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 |
Vehicle speed signal |
Ignition switch ON Wheel being rotated |
Pulse generation |
|
I68-12 (ACC) - I54-3 (GND) |
R - W-B |
Power source (ACC) |
Ignition switch off |
Below 1 V |
|
Ignition switch 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 |
Shield - Body ground |
Shield ground |
Always |
Below 1 V |
|
I68-24 (TMUT) - Body ground*1 |
L - Body ground |
Mute signal |
Ignition switch ACC Audio system playing |
2.0 V or higher |
|
Emergency call mode |
Below 1 V |
- *1: w/ Manual (SOS) Switch
- *2: 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](/t3Portal/stylegraphics/info.gif)
COMBINATION METER ASSEMBLY
Click here
SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)
Click here
HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) (w/ Headup Display System)
Click here
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