Toyota CH-R Service Manual: Terminals Of Ecu

*a

Component without harness connected

(Skid Control ECU (Brake Actuator Assembly))

-

-

1 (+BM)

ABS motor relay power supply

2

-

3

-

4

- (Not used)

5 (CANH)

CAN communication line H

6 (CSW)

VSC OFF switch input

7 (FL-)

Front wheel speed LH (-) signal input

8

- (Not used)

9

- (Not used)

10 (STPO)

Stop light control relay output

11

- (Not used)

12

-

13

-

14 (GND2)

Pump motor ground

15

-

16

-

17 (FSW+)

Brake pedal load sensing switch input

18

- (Not used)

19 (CANL)

CAN communication line L

20

- (Not used)

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

- (Not used)

26 (FR-)

Front wheel speed RH (-) signal input

27

- (Not used)

28

- (Not used)

29

- (Not used)

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

- (Not used)

39 (RL+)

Rear wheel speed LH (+) signal input

40

- (Not used)

41

- (Not used)

42 (STP)

Stop light control relay input

43 (HZRI)

Brake hold switch input

44 (STP2)

Stop light switch input

45

-

46 (GND1)

Skid control ECU ground

A42-1 (+BM) - Body ground

L - Body ground

ABS motor relay power supply

Always

11 to 14 V

A42-6 (CSW) - Body ground

R - Body ground

VSC OFF switch input

VSC OFF switch ON → OFF (Pressed → not pressed)

Below 1 Ω → 10 kΩ or higher

A42-10 (STPO) - Body ground

R - Body ground

Stop light control relay (stop light switch assembly) output

Ignition switch ON

11 to 14 V

A42-14 (GND2) - Body ground

W-B - Body ground

Pump motor ground

Always

Below 1 Ω

A42-17 (FSW+) - Body ground

GR - Body ground

Brake pedal load sensing switch input

Brake pedal load sensing switch OFF → ON (Brake pedal depressed → released)

950 to 1050 Ω → 203 to 223 Ω

A42-30 (+BS) - Body ground

W - Body ground

ABS solenoid relay power supply

Always

11 to 14 V

A42-36 (IG1) - Body ground

B - Body ground

IG1 power source input

Ignition switch ON

11 to 14 V

A42-42 (STP) - Body ground

SB - Body ground

Stop light control relay (stop light switch assembly) output

Stop light switch ON → OFF (Brake pedal depressed → released)

11 to 14 V* → Below 1.5 V

A42-43 (HZRI) - Body ground

B - Body ground

Brake hold switch input

Brake hold switch ON → OFF (Pressed → not pressed)

Below 1 Ω → 10 kΩ or higher

A42-44 (STP2) - Body ground

L - Body ground

Stop light switch input

Stop light switch assembly ON → OFF (Brake pedal depressed → released)

11 to 14 V* → Below 1.5 V

A42-46 (GND1) - Body ground

W-B - Body ground

Skid control ECU ground

Always

Below 1 Ω

*a

Front view of wire harness connector (to Skid Control ECU (Brake Actuator Assembly))