| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018K33 |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM(w/ Steering Control): TERMINALS OF ECU; 2018 - 2020 MY Sienna [11/2017 - ] | ||
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 |
|---|---|---|---|---|
|
T32-7 (IGB) - T32-10 (GND) |
L - W-B |
Power source |
Ignition switch ON |
11 to 14 V |
|
Ignition switch off |
Below 1 V |
|||
|
T32-10 (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 |
|---|---|---|---|---|
|
T32-5 (CA1P) - T32-10 (GND) |
G - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
|
T32-11 (CA1N) - T32-10 (GND) |
W - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
|
T32-6 (CANH) - T32-10 (GND) |
L - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
|
T32-12 (CANL) - T32-10 (GND) |
W - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
(1) WAVEFORM 1
|
Item |
Content |
|---|---|
|
Terminal Name |
Between T32-5 (CA1P) and T32-10 (GND) Between T32-6 (CANH) and T32-10 (GND) |
|
Tester Range |
1 V/DIV., 10 μsec./DIV. |
|
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
(2) WAVEFORM 2
|
Item |
Content |
|---|---|
|
Terminal Name |
Between T32-11 (CA1N) and T32-10 (GND) Between T32-12 (CANL) and T32-10 (GND) |
|
Tester Range |
1 V/DIV., 10 μsec./DIV. |
|
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
CHECK DRIVING SUPPORT ECU ASSEMBLY
(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 |
|---|---|---|---|---|
|
A80-7 (B) - A80-28 (GND) |
L - BR |
Power source |
Ignition switch ON |
11 to 14 V |
|
Ignition switch off |
Below 1 V |
|||
|
A80-23 (SPSW) - A80-28 (GND) |
W - BR |
Steering pad switch signal (Lane departure alert main switch signal) |
Ignition switch off Lane departure alert main switch off |
1 MΩ or higher |
|
Ignition switch off Lane departure alert main switch on |
228 to 252 Ω |
|||
|
A80-28 (GND) - Body ground |
BR - 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 driving support ECU assembly is suspected.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A80-8 (CA1P) - A80-28 (GND) |
V - BR |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
|
A80-9 (CA1N) - A80-28 (GND) |
W - BR |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
|
A80-10 (CA2H) - A80-28 (GND) |
R - BR |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
|
A80-11 (CA2L) - A80-28 (GND) |
W - BR |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
(1) WAVEFORM 1
|
Item |
Content |
|---|---|
|
Terminal Name |
Between A80-8 (CA1P) - A80-28 (GND) Between A80-10 (CA2H) - A80-28 (GND) |
|
Tester Range |
1 V/DIV., 10 μsec./DIV. |
|
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
(2) WAVEFORM 2
|
Item |
Content |
|---|---|
|
Terminal Name |
Between A80-9 (CA1N) - A80-28 (GND) Between A80-11 (CA2L) - A80-28 (GND) |
|
Tester Range |
1 V/DIV., 10 μsec./DIV. |
|
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
|
|