Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000002642C |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [09/2022 - 11/2022] |
Title: ADVANCED DRIVER ASSISTANCE SYSTEM: FRONT CAMERA SYSTEM (for TMMMS Made): TERMINALS OF ECU; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022] |
TERMINALS OF ECU
NOTICE:
-
DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the GTS 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)
|
Terminal Description
|
Condition
|
Specified Condition
|
T9-7 (IGB) - T9-10 (GND)
|
Power source
|
Ignition switch ON
|
11 to 14 V
|
Ignition switch off
|
Below 1 V
|
T9-1 (HTR) - T9-10 (GND)
|
Forward recognition with heater hood sub-assembly operation signal
|
Ignition switch ON
Forward recognition with heater hood sub-assembly not operating
|
11 to 14 V
|
Ignition switch ON
Forward recognition with heater hood sub-assembly operating
|
Below 1 V
|
T9-10 (GND) - 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)
|
Terminal Description
|
Condition
|
Specified Condition
|
T9-5 (CA1P) - T9-10 (GND)
|
CAN communication signal
|
Ignition switch ON
|
Pulse generation
(See waveform 1)
|
T9-11 (CA1N) - T9-10 (GND)
|
CAN communication signal
|
Ignition switch ON
|
Pulse generation
(See waveform 2)
|
T9-6 (CANH) - T9-10 (GND)
|
CAN communication signal
|
Ignition switch ON
|
Pulse generation
(See waveform 1)
|
T9-12 (CANL) - T9-10 (GND)
|
CAN communication signal
|
Ignition switch ON
|
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
|
Ignition switch ON
|
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
|
Ignition switch ON
|
HINT:
The waveform varies depending on the CAN communication signal.
|