| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001CUR1 |
| Model Year Start: 2019 | Model: GR Corolla | Prod Date Range: [06/2018 - 06/2021] |
| Title: CRUISE CONTROL: FRONT CAMERA SYSTEM (for Gasoline Model): TERMINALS OF ECU; 2019 - 2021 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 06/2021] | ||
TERMINALS OF ECU
NOTICE:
- DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the inspection has been completed.
- Do not apply excessive force to the forward recognition camera connector.
CHECK FORWARD RECOGNITION CAMERA
(a) Measure the voltage and resistance according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
T9-7 (IGB) - T9-10 (GND) |
B - W-B |
Power source |
Engine switch on (IG) |
11 to 14 V |
|
Engine switch off |
Below 1 V |
|||
|
T9-1 (HTR) - T9-10 (GND) |
G - W-B |
Forward recognition with heater hood sub-assembly operation signal |
Engine switch on (IG) Forward recognition with heater hood sub-assembly not operating |
11 to 14 V |
|
Engine switch on (IG) Forward recognition with heater hood sub-assembly operating |
Below 1 V |
|||
|
T9-10 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
(b) Check for pulses according to the value(s) in the table below.
HINT:
If the waveform is not similar to that shown in the illustration, a malfunction of a CAN bus line, terminating resistor, or the forward recognition camera is suspected.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
T9-5 (CA1P) - T9-10 (GND) |
W - W-B |
CAN communication signal |
Engine switch on (IG) |
Pulse generation (See waveform 1) |
|
T9-11 (CA1N) - T9-10 (GND) |
B - W-B |
CAN communication signal |
Engine switch on (IG) |
Pulse generation (See waveform 2) |
|
T9-6 (CANH) - T9-10 (GND) |
G - W-B |
CAN communication signal |
Engine switch on (IG) |
Pulse generation (See waveform 1) |
|
T9-12 (CANL) - T9-10 (GND) |
R - W-B |
CAN communication signal |
Engine switch on (IG) |
Pulse generation (See waveform 2) |
(1) WAVEFORM 1
|
Item |
Content |
|---|---|
|
Terminal Name |
Between T9-5 (CA1P) and T9-10 (GND) Between T9-6 (CANH) and T9-10 (GND) |
|
Tester Range |
1 V/DIV., 10 μs/DIV. |
|
Condition |
Engine switch on (IG) |
HINT:
The waveform varies depending on the CAN communication signal.
(2) WAVEFORM 2
|
Item |
Content |
|---|---|
|
Terminal Name |
Between T9-11 (CA1N) and T9-10 (GND) Between T9-12 (CANL) and T9-10 (GND) |
|
Tester Range |
1 V/DIV., 10 μs/DIV. |
|
Condition |
Engine switch on (IG) |
HINT:
The waveform varies depending on the CAN communication signal.
|
|