Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM10000000155U9
Model Year Start: 2018 Model: Camry Prod Date Range: [06/2017 - 10/2020]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM (w/o Electric Parking Brake System): TERMINALS OF ECU; 2018 - 2020 MY Camry [06/2017 - 10/2020]

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 (SP1)

Speed signal output for speedometer

3 (STPO)*

Stop light control relay (stop light switch assembly) output

4 (FR-)

Front wheel speed RH (-) signal input

5

-

6

-

7

-

8 (FL-)

Front wheel speed LH (-) signal input

9 (CSW)

VSC OFF switch input

10

-

11

-

12

-

13 (GND2)

Pump motor ground

14 (CANL)

CAN communication line L

15

-

16 (FR+)

Front wheel speed RH (+) signal input

17 (RR+)

Rear wheel speed RH (+) signal input

18 (RL-)

Rear wheel speed LH (-) signal input

19 (FL+)

Front wheel speed LH (+) signal input

20

-

21

-

22 (STP2)*

Stop light control relay (stop light switch assembly) input

23

-

24

-

25 (+BS)

ABS solenoid relay power supply

26 (CANH)

CAN communication line H

27

-

28 (IG1)

IG1 power source input

29 (RR-)

Rear wheel speed RH (-) signal input

30 (STP)

Stop light switch assembly input

31 (RL+)

Rear wheel speed LH (+) signal input

32

-

33

-

34

-

35

-

36

-

37

-

38 (GND1)

Skid control ECU (brake actuator assembly) ground

  • *: w/ Pre-collision System

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

A33-1 (+BM) - Body ground

B - Body ground

ABS motor relay power supply

Always

11 to 14 V

A33-3 (STPO) - Body ground*2

L - Body ground

Stop light control relay (stop light switch assembly) output

Always

11 to 14 V

A33-9 (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

A33-13 (GND2) - Body ground

W-B - Body ground

Pump motor ground

Always

Below 1 Ω

A33-22 (STP2) - Body ground*2

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*1 → Below 1.5 V

A33-25 (+BS) - Body ground

L - Body ground

ABS solenoid relay power supply

Always

11 to 14 V

A33-28 (IG1) - Body ground

B - Body ground

IG1 power source input

Ignition switch ON

11 to 14 V

A33-30 (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*1 → Below 1.5 V

A33-38 (GND1) - Body ground

W-B - Body ground

Skid control ECU (brake actuator assembly) ground

Always

Below 1 Ω

  • *1: The minimum voltage value varies depending on the +BS terminal voltage value. The minimum voltage is 85% or more of the +BS terminal voltage.
  • *2: w/ Pre-collision System