| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001AZ8S |
| Model Year Start: 2019 | Model: Avalon | Prod Date Range: [04/2018 - 08/2021] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): TERMINALS OF ECU; 2019 - 2021 MY Avalon [04/2018 - 08/2021] | ||
TERMINALS OF ECU
TERMINALS OF ECU
|
*a |
Component without harness connected (Skid Control ECU (Brake Actuator Assembly)) |
- |
- |
|
Terminal No. (Symbol) |
Terminal Description |
|---|---|
|
1 (+BM) |
ABS motor relay power supply |
|
2 |
- |
|
3 |
- |
|
4 |
- |
|
5 (CANH) |
CAN communication line H |
|
6 (CSW) |
VSC OFF switch input |
|
7 (FL-) |
Front wheel speed LH (-) signal input |
|
8 |
- |
|
9 |
- |
|
10 (STPO) |
Stop light control relay (stop light switch assembly) output |
|
11 |
- |
|
12 |
- |
|
13 |
- |
|
14 (GND2) |
Pump motor ground |
|
15 |
- |
|
16 |
- |
|
17 |
- |
|
18 |
- |
|
19 (CANL) |
CAN communication line L |
|
20 |
- |
|
21 (FR+) |
Front wheel speed RH (+) signal input |
|
22 (RR+) |
Rear wheel speed RH (+) signal input |
|
23 (RL-) |
Rear wheel speed LH (-) signal input |
|
24 (FL+) |
Front wheel speed LH (+) signal input |
|
25 |
- |
|
26 (FR-) |
Front wheel speed RH (-) signal input |
|
27 |
- |
|
28 |
- |
|
29 |
- |
|
30 (+BS) |
ABS solenoid relay power supply |
|
31 |
- |
|
32 |
- |
|
33 |
- |
|
34 (SP1) |
Speed signal output for speedometer |
|
35 |
- |
|
36 (IG1) |
IG1 power source input |
|
37 (RR-) |
Rear wheel speed RH (-) signal input |
|
38 |
- |
|
39 (RL+) |
Rear wheel speed LH (+) signal input |
|
40 |
- |
|
41 |
- |
|
42 (STP) |
Stop light switch assembly input |
|
43 (HZRI) |
Brake hold switch (electric parking brake switch assembly) input |
|
44 (STP2) |
Stop light control relay (stop light switch assembly) input |
|
45 |
- |
|
46 (GND1) |
Skid control ECU (brake actuator assembly) ground |
TERMINAL INSPECTION
(a) Disconnect the connector and measure the voltage and resistance on the wire harness side.
|
*a |
Front view of wire harness connector (to Skid Control ECU (Brake Actuator Assembly)) |
- |
- |
HINT:
The voltage cannot be measured with the connector connected to the skid control ECU (brake actuator assembly) because the connector is watertight.
Standard
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A28-1 (+BM) - Body ground |
B - Body ground |
ABS motor relay power supply |
Always |
11 to 14 V |
|
A28-6 (CSW) - Body ground |
P - Body ground |
VSC OFF switch input |
VSC OFF switch on → off (Pressed → not pressed) |
Below 1 Ω → 10 kΩ or higher |
|
A28-10 (STPO) - Body ground |
L - Body ground |
Stop light control relay (stop light switch assembly) output |
Always |
11 to 14 V |
|
A28-14 (GND2) - Body ground |
W-B - Body ground |
Pump motor ground |
Always |
Below 1 Ω |
|
A28-30 (+BS) - Body ground |
G - Body ground |
ABS solenoid relay power supply |
Always |
11 to 14 V |
|
A28-36 (IG1) - Body ground |
B - Body ground |
IG1 power source input |
Engine switch on (IG) |
11 to 14 V |
|
A28-42 (STP) - Body ground |
GR - Body ground |
Stop light switch assembly input |
Stop light switch assembly on → off (Brake pedal depressed → released) |
(+BS x 0.85) to 14 V* → Below 1.5 V |
|
A28-43 (HZRI) - Body ground |
LG - Body ground |
Brake hold switch (electric parking brake switch assembly) input |
Brake hold switch (electric parking brake switch assembly) on → off (Pressed → not pressed) |
Below 1 Ω → 10 kΩ or higher |
|
A28-44 (STP2) - Body ground |
R - Body ground |
Stop light control relay (stop light switch assembly) input |
Stop light switch assembly on → off (Brake pedal depressed → released) |
(+BS x 0.85) to 14 V* → Below 1.5 V |
|
A28-46 (GND1) - Body ground |
W-B - Body ground |
Skid control ECU (brake actuator assembly) ground |
Always |
Below 1 Ω |
HINT:
*: The minimum voltage value varies depending on the +BS terminal voltage value. The minimum voltage is 85% or more of the +BS terminal voltage.
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