| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000ZX6I |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - 11/2017] |
| Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: TERMINALS OF ECU; 2017 MY Sienna [08/2016 - 11/2017] | ||
TERMINALS OF ECU
1. CHECK DRIVING SUPPORT ECU
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A44-30 (B) - A44-25 (GND) |
L - BR |
Battery |
Always |
11 to 14 V |
|
A44-39 (CA2H) - A44-25 (GND) |
R - BR |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
|
A44-17 (CA2L) - A44-25 (GND) |
W - BR |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
|
A44-25 (GND) - Body ground |
BR - Body ground |
Ground |
Always |
Below 1 V |
|
A44-7 (MODE) - A44-25 (GND) |
W - BR |
Steering pad switch signal (Distance control switch signal) |
Ignition switch ON, Steering pad switch signal ON |
0 to 2 V |
|
Ignition switch ON, Steering pad switch signal OFF |
11 to 14 V |
|||
|
A44-18 (CA1N) - A44-25 (GND) |
W - BR |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 3) |
|
A44-40 (CA1P) - A44-25 (GND) |
B - BR |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 4) |
|
A44-32 (WIP2) - A44-25 (GND) |
L - BR |
Wiper switch signal |
Ignition switch ON, wiper switch HI position |
11 to 14 V |
|
Ignition switch ON, wiper switch LO position |
6 to 9 V |
(a) Waveform 1
(1) CAN communication signal
|
Item |
Content |
|---|---|
|
Tester Name |
A44-39 (CA2H) - A44-25 (GND) |
|
Tester Range |
1 V/DIV., 10 μsec./DIV. |
|
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
(b) Waveform 2
(1) CAN communication signal
|
Item |
Content |
|---|---|
|
Tester Name |
A44-17 (CA2L) - A44-25 (GND) |
|
Tester Range |
1 V/DIV., 10 μsec./DIV. |
|
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
(c) Waveform 3
(1) CAN communication signal
|
Item |
Content |
|---|---|
|
Tester Name |
A44-18 (CA1N) - A44-25 (GND) |
|
Tester Range |
1 V/DIV., 10 μsec./DIV. |
|
Condition |
Ignition switch ON |
(d) Waveform 4
(1) CAN communication signal
|
Item |
Content |
|---|---|
|
Tester Name |
A44-40 (CA1P) - A44-25 (GND) |
|
Tester Range |
1 V/DIV., 10 μsec./DIV. |
|
Condition |
Ignition switch ON |
2. CHECK ECM
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A69-33 (TC) - B67-53 (E1) |
P - BR |
Ground |
Ignition switch ON |
10 to 14 V |
|
Terminals TC and CG of DLC3 connected |
Below 1 V |
|||
|
A69-42 (ST1-) - B67-53 (E1) |
LG - BR |
Stop light signal |
Ignition switch ON, Brake pedal depressed (Stop light switch on) |
Below 1 V |
|
Ignition switch ON, Brake pedal released (Stop light switch off) |
10 to 14 V |
|||
|
A69-27 (STP) - B67-53 (E1) |
L - BR |
Stop light signal |
Ignition switch ON, Brake pedal released (Stop light switch off) |
Below 1 V |
|
Ignition switch ON, Brake pedal depressed (Stop light switch on) |
10 to 14 V |
|||
|
A69-56 (CCHG) - B67-53 (E1) |
P - BR |
Distance control switch signal |
Ignition switch ON, Cruise control main switch on, MODE switch on |
Below 1 V |
|
Ignition switch ON, Cruise control main switch on, MODE switch off |
10 to 14 V |
|||
|
A69-20 (LGND) - Body ground |
R - Body ground |
Ground |
Always |
Below 1 Ω |
|
A69-41 (CCS) - B67-53 (E1) |
B - BR |
Cruise control main switch signal |
Ignition switch ON |
10 to 14 V |
|
Ignition switch ON, CANCEL switch on |
6.6 to 10.1 V |
|||
|
Ignition switch ON, - SET switch on |
4.5 to 7.1 V |
|||
|
Ignition switch ON, + RES switch on |
2.3 to 4.0 V |
|||
|
Ignition switch ON, Main switch on |
Below 1 V |
|||
|
B67-53 (E1) - Body ground |
BR - Body ground |
Ground |
Always |
Below 1 Ω |
If the value is not within the specified range, the ECM may have a malfunction.
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