Acura RL (1996-2004 year). Manual — part 54

36-2

Vehicle Stability Assist (VSA) System

VSA
MODULATOR/
CONTROL UNIT

PHOTO 182
VIEW 127

See Ground
Distribution,
page 14-19.

Yaw rate/lateral
acceleration
sensor ground

(YRSA YM)

RED/WHT

RED/BLU

1

7

5

1

RED/BLU

YEL

C429

PHOTO 82
VIEW 62

YEL

39

21

C487
(Terminals 15-17)

PHOTO 184
VIEW 129

C487
(Terminals 1-4)

PHOTO 184
VIEW 129

C487
(Terminals
11-14)

PHOTO 184
VIEW 129

RED/BLU

BRN/WHT

RED/BLU

YEL

3

13

6

RED/BLU

YEL

C444

PHOTO 108
VIEW 93

14

BRN/

WHT

G403

PHOTO 94

G601

PHOTO 133

BLK

See Ground
Distribution,
page 14-14.

BRN/WHT

YEL

YEL

RED/BLU

YAW RATE/LATERAL
ACCELERATION
SENSOR

PHOTO 186
VIEW 130

BLK

GRN

2

12

8

41

C444

PHOTO 108
VIEW 93

5

4

RED

WHT

11

1

9

10

2

1

GRY/WHT

4

GRY/WHT

BLK

GRN

RED

WHT

(YRS REF)

Yaw rate
sensor
reference
voltage

(AY)

Lateral
acceleration
input

(YRST)

(YRSS)

Yaw rate input

G602

PHOTO 153

BLK

See Ground
Distribution,
page 14-15.

BRN/WHT

Yaw rate/lateral
acceleration sensor
power source

(YRSA YU)

BRN/WHT

3

’00-’04

2004 American Honda Motor Co., Inc.

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36-3

Vehicle Stability Assist (VSA) System

’00-’04

C487
(Terminals 5-7)

PHOTO 184
VIEW 129

C326

PHOTO 73
VIEW 72

FUSE 32

VSA
MOTOR
40A

C303

PHOTO 37

1

2

C324

PHOTO 72
VIEW 21

7

WHT/BLU

WHT/

BLU

UNDER-
HOOD
FUSE/
RELAY
BOX

PHOTO 33

4

(VLP (–))

3

(VLP (+))

BLU

YEL

BLU

YEL

1

2

C355

PHOTO
181

BLK

RED

M

PRE-CHARGE
PUMP-MOTOR

PHOTO 181

2

12

C325

PHOTO
73
VIEW 76

VSA

MODULATOR/

CONTROL UNIT

PHOTO 182

VIEW 127

M

GRN

BLU

YEL

Sensor
ground

(PSM)

Pressure
sensor
input

(PSS)

Reference
voltage

(PSU)

VSA HYDRAULIC
PRESSURE SENSOR

PHOTO 182

G251

PHOTO 46

See Ground
Distribution,
page 14-5.

BLK

VSA
SOLE-
NOIDS

25

26

42

FUSE 43

VSA
20A

C305

PHOTO 36
VIEW 20

4

6

C325

PHOTO 73
VIEW 76

8

WHT/GRN

WHT/GRN

STEERING
ANGLE
SENSOR

PHOTO 185

PNK

(’00-’01)

WHT

(’00-’01)

14

6

BLK

9

4

2

BLK

PNK

WHT

C429

PHOTO 82
VIEW 62

GRY/WHT

GRY/WHT

PNK

WHT

VSA
CON-
VERTER
UNIT

PHOTO 183
VIEW 128

18

19

PNK

WHT

24

40

GRY/WHT

C487
(Terminals
8-10)

PHOTO 184
VIEW 129

C487
(Terminals
18-20)

PHOTO 184
VIEW 129

GRY/WHT

17

Shield

(CAN SLD) (CAN (–)) (CAN (+))

Communication

GRY/WHT

GRY/WHT

(CAN (–))

(CAN (+))

Communication

VSA
MODULATOR/
CONTROL
UNIT

PHOTO 182
VIEW 127

(+B-FSR)

(+B-MR)

VSA
PUMP
MOTOR

3

2

1

WHT

PNK

HOT AT ALL TIMES

HOT AT ALL TIMES

JUMPER
or
BUSBAR

FUSE 38

(Not used)

(Not
used)

3

C305

2004 American Honda Motor Co., Inc.

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36-4

Vehicle Stability Assist (VSA) System

D

C

See
PGM-FI

Reference
voltage

(VCC2)

TP
sensor
input

(TPS)

21

YEL/BLU

6

D

8

BLU

12

PNK/BLK

10

BLK/ORN

21

24

22

1

GRN/BLK

3

2

YEL/BLU

RED/BLK

13

5

C101

PHOTO 48
VIEW 53

THROTTLE
POSITION
(TP)
SENSOR

PHOTO 12

7

5

Engine
speed
output

(NEP)

Traction
control
standby

(TCSTB)

Traction
control fuel
cut input

(TCFC)

(NEP)

Engine
speed
input

(TC STB)

VSA
operation
start signal

(TC-FC)

VSA fuel
cut output
signal

Throttle position
sensor input

(THL1)

TCS control valve
angle sensor input

(THL2)

BLU

C464
(Terminals
7-10)

PHOTO 103
VIEW 82

See
PGM-FI

YEL/BLU

C102

PHOTO 48
VIEW 54

3

2

YEL/BLU

RED

8

4

C105

PHOTO 49
VIEW 23

VSA
CONTROL
VALVE
ANGLE
SENSOR

PHOTO 5

RED/BLK

RED

YEL/BLU

RED/BLK

RED/BLK

See PGM-FI

D

22

GRN/BLK

POWERTRAIN
CONTROL
MODULE (PCM)

PHOTO 104
VIEW 115

(SG2)

Sensor
ground

GRN/BLK

1

GRN/BLK

2

1

SERVICE CHECK
CONNECTOR

PHOTO 100

C456
(Terminals 17-20)

PHOTO 103
VIEW 81

GRN/BLK

RED

YEL/BLU

1

C103

PHOTO 48
VIEW 55

GRN/BLK

C114
(Terminals 8-14)

PHOTO 6
VIEW 57

GRN/BLK

GRN/BLK

20

BLU/WHT

23

Reference
voltage

(VREF)

(VREF)

Reference
voltage

20

PNK

(’00-’02

WHT/GRN)

9

19

E

BLU

(’00-’02

WHT/RED)

11

(SDLA)

(SDLB)

Communication

(SDLA)

(SDLB)

Communication

VSA

CONVERTER

UNIT

PHOTO 183

VIEW 128

’00-’04

2004 American Honda Motor Co., Inc.

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36-5

Vehicle Stability Assist (VSA) System

C201

PHOTO 112
VIEW 71

C215

PHOTO 53

’00-’04

UNDER-DASH
FUSE/RELAY
BOX

PHOTO 75

BRN

1

2

LEFT
FRONT
WHEEL
SENSOR

PHOTO 58

BRN

(’00 BLK)

BLK/WHT

GRN/BLU

C326

PHOTO 73
VIEW 72

C309

PHOTO 30

Speed sensor inputs

Service check
connector input

(SCS)

DLC
input/
output

(K-LINE)

(SCS)

Service check
connector input

LT GRN

D

4

5

C

4

3

GRN

1

2

RIGHT
FRONT
WHEEL
SENSOR

PHOTO 58

GRN

GRN/BLK

17

18

GRY

3

LEFT
REAR
WHEEL
SENSOR

PHOTO 59

GRY

(’00-’01 BLK)

WHT

LT BLU

C724

PHOTO 68

3

4

11

12

BLU/YEL

1

2

RIGHT
REAR
WHEEL
SENSOR

PHOTO 59

BLU/YEL

GRN/YEL

C669

PHOTO 152
VIEW 40

C725

PHOTO 68

1

2

C413

PHOTO 83
VIEW 73

9

10

GRN/BLU

GRN/BLK

LT BLU

GRN/YEL

GRY

LT BLU

BLU/YEL

GRN/YEL

(FLS (–))

(FLS (+))

(FRS (–))

(FRS (+))

(RLS (–))

(RLS (+))

(RRS (–))

(RRS (+))

13

28

15

16

29

14

30

31

VSA
MODULATOR/
CONTROL
UNIT

PHOTO 182
VIEW 127

RED

RED

1

RED

RED

RED

See SRS

C448
(Terminals 7-10)

PHOTO 111
VIEW 80

(K-LINE)

DLC input/output

See Ground
Distribution,
page 14.

13

G101

PHOTO 10

BRN/BLK

BRN/BLK

15

LT GRN

FUSE 6

ECU
20A

See Power
Distribution,
page 10-2.

POWERTRAIN
CONTROL
MODULE
(PCM)

PHOTO 104
VIEW 115

C501

PHOTO 77
VIEW 30

5

8

C430

PHOTO 82
VIEW 51

3

YEL/BLK

YEL/BLK

YEL/BLK

See Power
Distribution,
page 10-2.

DATA LINK
CONNECTOR

PHOTO 92
VIEW 70

See Ground
Distribution,
page 14-12.

12

G402

PHOTO 106

BLK

BLK

BLK

20

11

LT GRN

(’00 BLK)

BLK/WHT

(’00 BLK)

BLK/YEL

(’00 BLK)

BLK/YEL

1

(’00 BLK)

(’01 BLK/WHT)

WHT

(’00 BLK)

(’01

BLK/WHT)

WHT

(’00-’01

BLK)

WHT

HOT AT ALL TIMES

2004 American Honda Motor Co., Inc.

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