| Last Modified: 11-29-2007 | 1.6 U | |
| Service Category: Brake | Section: Brake Control/Dynamic Control System | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000001MXB005X |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: TERMINALS OF ECU (2008 Sequoia) | ||
TERMINALS OF ECU
1. SKID CONTROL ECU
|
Terminal No. (Symbol) |
Terminal Description |
|---|---|
|
1 (GND) |
Skid control ECU ground |
|
2 (STP0) |
Stop light control relay (BRK NO. 1) signal input |
|
3 (PKB2) |
Parking brake switch signal input |
|
4 (CANL) |
Vehicle CAN communication line |
|
5 (CANH) |
Vehicle CAN communication line |
|
6 (EXI2) |
A.D.D. detection switch signal input (4WD) |
|
7 (D/G) |
Diagnosis tester communication line |
|
8 (BZ) |
Buzzer drive input |
|
9 (IG1) |
IG1 power supply |
|
10 (TS) |
Sensor check input |
|
11 (STP2) |
Stop light switch and stop light control relay (BRK NO. 1) signal input |
|
12 |
No pin |
|
13 (CSW) |
VSC OFF switch signal input |
|
14 (SP1) |
Vehicle speed pulse signal output |
|
15 |
No pin |
|
16 (+BM) |
Motor relay power supply |
|
17 (BST) |
Brake booster solenoid ground |
|
18 (PIM) |
Pedal stroke sensor (Delta S sensor) input line |
|
19 (GYAW) |
Yaw rate sensor ground |
|
20 |
No pin |
|
21 (E3) |
Pedal stroke sensor (Delta S sensor) ground |
|
22 (VCP) |
Pedal stroke sensor (Delta S sensor) power source |
|
23 |
No pin |
|
24 (PSNO) |
Brake booster micro switch (Normal Open) signal input |
|
25 (PSNC) |
Brake booster micro switch (Normal Close) signal input |
|
26 (VYS) |
Yaw rate sensor power source |
|
27 (STS) |
Brake booster micro switch power source |
|
28 |
No pin |
|
29 (SS2) |
Yaw rate sensor signal line (CANL) |
|
30 (SS1) |
Yaw rate sensor signal line (CANH) |
|
31 (BSTP) |
Brake booster solenoid power source |
|
32 |
No pin |
|
33 (FL-) |
Front wheel LH speed signal line |
|
34 (FL+) |
Front wheel LH speed signal line |
|
35 (BSW) |
Stop light control relay (BRK NO. 2) drive input |
|
36 (RR+) |
Rear wheel RH speed signal line |
|
37 (RR-) |
Rear wheel RH speed signal line |
|
38 |
No pin |
|
39 (PSOO) |
Brake booster micro switch signal output |
|
40 |
No pin |
|
41 (STP) |
Stop light switch signal input |
|
42 (RL-) |
Rear wheel LH speed signal line |
|
43 (RL+) |
Rear wheel LH speed signal line |
|
44 |
No pin |
|
45 (FR+) |
Front wheel RH speed signal line |
|
46 (FR-) |
Front wheel RH speed signal line |
|
47 (+BS) |
Solenoid relay power supply |
2. CHECK SKID CONTROL ECU
(a) Disconnect the A19 ECU connector.
(b) Measure the voltage or resistance according to the value(s) in the table below.
HINT:
- Voltage cannot be measured with the connector connected to the skid control ECU as the connector is watertight.
- *1: for 4WD
- *2: for 2WD
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A19-1 (GND1) - Body ground |
W-B - Body ground |
Skid control ECU ground |
Always |
Below 1 Ω |
|
A19-2 (STP0) - Body ground |
BR - Body ground |
Stop light control relay (BRK NO. 1) signal input |
Ignition switch ON |
11 to 14 V |
|
A19-3 (PKB2) - Body ground |
LG - Body ground |
Parking brake switch signal input |
Parking brake switch ON |
Below 1 Ω |
|
A19-4 (CANL) - A19-5 (CANH) |
W - B |
CAN BUS |
Always |
54 to 69 Ω |
|
A19-5 (CANH) - A19-4 (CANL) |
B - W |
CAN BUS |
Always |
54 to 69 Ω |
|
A19-6 (EXI2) - Body ground |
GR - Body ground |
A.D.D. detection switch signal input (4WD) |
A.D.D. detection switch ON |
Below 1 Ω |
|
A19-7 (D/G) - H19-7 (SIL) |
P - O |
Diagnosis tester communication line |
Always |
Below 1 Ω |
|
A19-8 (BZ) - Body ground |
Y - Body ground |
Buzzer drive input |
Ignition switch ON |
11 to 14 V |
|
A19-9 (IG1) - Body ground |
V - Body ground |
IG1 power supply |
Ignition switch ON |
11 to 14 V |
|
A19-10 (TS) - H19-12 (TS) |
W - G |
Sensor check input |
Always |
Below 1 Ω |
|
A19-11 (STP2) - Body ground |
GR - Body ground |
Stop light switch and stop light control relay (BRK NO. 1) signal input |
Brake pedal depressed |
8 to 14 V |
|
Brake pedal released |
Below 1.5 V |
|||
|
A19-13 (CSW) - Body ground |
P - Body ground |
VSC OFF switch signal input |
VSC OFF switch ON |
Below 1 Ω |
|
A19-14 (SP1) - Body ground |
Y - Body ground |
Vehicle speed pulse signal output |
Always |
11 to 14 V |
|
A19-16 (+BM) - Body ground |
L - Body ground |
Motor relay power supply |
Always |
11 to 14 V |
|
A19-17 (BST) - A19-31 (BSTP) |
B - V |
Brake booster solenoid ground |
Always |
1 to 2 Ω |
|
A19-18 (PIM) - A19-21 (E3) |
R - O |
Pedal stroke sensor (Delta S sensor) input line |
Always |
4 to 8 kΩ |
|
A19-19 (GYAW) - O12-5 (GYAW)*1 |
P - G |
Yaw rate sensor ground |
Always |
Below 1 Ω |
|
A19-19 (GYAW) - O11-5 (GYAW)*2 |
||||
|
A19-21 (E3) - Body ground |
O - Body ground |
Pedal stroke sensor (Delta S sensor) ground |
Always |
10 kΩ or higher |
|
A19-22 (VCP) - A19-21 (E3) |
G - O |
Pedal stroke sensor (Delta S sensor) power source |
Always |
150 to 200 Ω |
|
A19-24 (PSNO) - A19-27 (STS) |
LG - SB |
Brake booster micro switch (Normal Open) signal input |
Brake pedal depressed |
Below 1 Ω |
|
A19-25 (PSNC) - A19-27 (STS) |
L - SB |
Brake booster micro switch (Normal Close) signal input |
Always |
Below 1 Ω |
|
A19-26 (VYS) - O12-3 (VYS)*1 |
R - R |
Yaw rate sensor power source |
Always |
Below 1 Ω |
|
A19-26 (VYS) - O11-3 (VYS)*2 |
||||
|
A19-27 (STS) - A19-24 (PSNO) |
SB - L |
Brake booster micro switch power source |
Always |
Below 1 Ω |
|
A19-29 (SS2) - O12-1 (YAW2)*1 |
W - W |
Yaw rate sensor signal line (CANL) |
Always |
Below 1 Ω |
|
A19-29 (SS2) - O11-1 (YAW2)*2 |
||||
|
A19-30 (SS1) - O12-2 (YAW1)*1 |
B - B |
Yaw rate sensor signal line (CANH) |
Always |
Below 1 Ω |
|
A19-30 (SS1) - O11-2 (YAW1)*2 |
||||
|
A19-31 (BSTP) - A19-17 (BST) |
V - B |
Brake booster solenoid power source |
Always |
1 to 2 Ω |
|
A19-33 (FL-) - z4-1 |
LG - B |
Front wheel LH speed signal line |
Always |
Below 1 Ω |
|
A19-34 (FL+) - z4-2 |
V - W |
Front wheel LH speed signal line |
Always |
Below 1 Ω |
|
A19-35 (BSW) - Body ground |
L - Body ground |
Stop light control relay (BRK NO. 2) drive input |
Ignition switch ON |
11 to 14 V |
|
A19-36 (RR+) - z5-2 |
B - W |
Rear wheel RH speed signal line |
Always |
Below 1 Ω |
|
A19-37 (RR-) - z5-1 |
W - B |
Rear wheel RH speed signal line |
Always |
Below 1 Ω |
|
A19-39 (PSOO) - A27-36 (STV) |
SB - SB |
Brake booster micro switch signal line |
Always |
Below 1 Ω |
|
A19-41 (STP) - Body ground |
Y - Body ground |
Stop light switch signal input |
Brake pedal depressed |
8 to 14 V |
|
Brake pedal released |
Below 1.5 V |
|||
|
A19-42 (RL-) - z6-1 |
P - B |
Rear wheel LH speed signal line |
Always |
Below 1 Ω |
|
A19-43 (RL+) - z6-2 |
L - W |
Rear wheel LH speed signal line |
Always |
Below 1 Ω |
|
A19-45 (FR+) - z3-2 |
O - W |
Front wheel RH speed signal line |
Always |
Below 1 Ω |
|
A19-46 (FR-) - z3-1 |
G - B |
Front wheel RH speed signal line |
Always |
Below 1 Ω |
|
A19-47 (+BS) - Body ground |
R - Body ground |
Solenoid relay power supply |
Always |
11 to 14 V |
|
|