Acura RL (1996-2004 year). Manual - part 50

23-10

Programmed Fuel Injection System (PGM-FI)

FUSE 20

ECU
20A

UNDER-DASH
FUSE/RELAY
BOX

PHOTO 75

A

11

BLK/YEL

See Gauge
Assembly

MALFUNCTION
INDICATOR
LAMP (MIL)

GAUGE
ASSEMBLY

PHOTO 71
VIEW 113

LT GRN/RED

A

4

See Power
Distribution,
page 10-9.

See Power
Distribution,
page 10-9.

Canada

C502

PHOTO 77
VIEW 83

1

BLK/YEL

‘97-‘03

USA

HOT IN ON OR START

FUSE 55

METER
15A

C307

PHOTO 37
VIEW 47

1

UNDER-HOOD
FUSE/RELAY
BOX

PHOTO 33

RED/YEL

See Gauge Assembly,
page 80-9.

WHT/RED

WHT/RED

A

22

GAUGE
RELAY

PHOTO 27

1

2

UNDER-HOOD
RELAY BOX C

PHOTO 23

GAUGE
ASSEMBLY

PHOTO 212
VIEW 113

A

4

See Gauge
Assembly

HOT AT ALL TIMES

LT GRN/RED

’96-’03

’04

POWERTRAIN
CONTROL
MODULE (PCM)

PHOTO 104
VIEW 115

7

A

11

C476

PHOTO 97
VIEW 94

LT GRN/RED

(MIL)

MIL
control

LT GRN/RED

Drive
Circuit

Main
Circuit

See Gauge
Assembly

NOTE: The Gauge Relay is
energized with the ignition
switch in ON (II) or START
(III). See Gauge Assembly,
page 

80-9

.

MALFUNCTION
INDICATOR
LAMP (MIL)

2004 American Honda Motor Co., Inc.

Circuit Index

Circuit Index

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▼

33

Vehicle Speed Sensor (VSS)

(

B

(C 

***

)

FUSE 13

METER (

*

)

METER
SUN ROOF (

**

)

7.5A

UNDER-
DASH
FUSE/
RELAY
BOX

PHOTO 75

See Power
Distribution,
page 10-10.

YEL

8

C404

PHOTO 76
VIEW 49

See Power
Distribution,
page 10-10.

YEL

2

3

5

4

C123

PHOTO 7
VIEW 2

Ignition
input

Vehicle
speed
output

VEHICLE
SPEED
SENSOR
(VSS)

PHOTO 62

YEL

BLU/WHT

C448
(Terminals 14-16)

PHOTO 111
VIEW 80

2

1

C101

PHOTO 48
VIEW 53

YEL

C448
(Terminals 11-13)

PHOTO 111
VIEW 80

UNDER-
DASH
FUSE/
RELAY
BOX

PHOTO 75

4

A

DRIVER’S
MULTIPLEX
CONTROL
UNIT

PHOTO 79
VIEW 114

14

C651

C402

PHOTO 77
VIEW 37

7

(Not
used)

C502

PHOTO 77
VIEW 83

13

Vehicle
speed
input

(VSS)

13

B

BLU/WHT

BLU/WHT

BLU/WHT

8

C403

PHOTO 74
VIEW 90

21

Vehicle
speed
input

Vehicle
speed
input

Odometer
driver
circuit

Vehicle
speed
input

NAVI-
GATION
UNIT

PHOTO 160
(’96-’03)
PHOTO 208
VIEW 104

6

11

A

GAUGE
ASSEMBLY

PHOTO 71
(’96-’03)
PHOTO 212
VIEW 113

18

A

STEERING
COLUMN
CONTROL
UNIT

PHOTO 90
VIEW 109

CRUISE
CONTROL
UNIT

PHOTO 90
VIEW 64

BLU/WHT

BLU/WHT

BLU/WHT

BLU/WHT

BLU/WHT

BLU/WHT

12

5

C443

PHOTO 158
VIEW 67

BLU/WHT

Navigation System

Vehicle
speed
input

POWERTRAIN
CONTROL
MODULE
(PCM)

PHOTO 104
VIEW 115

*

= ‘96-‘98

**

= ’99-’04

***

= ’00-’04

C114
(Terminals 8-14)

PHOTO 6
VIEW 57

Ground

(SG2)

Sensor
ground

D

22

GRN/BLU

POWERTRAIN
CONTROL
MODULE (PCM)

PHOTO 104
VIEW 115

1

6

C123

PHOTO 7
VIEW 2

GRN/BLU

1

C103

PHOTO 48
VIEW 55

GRN/BLK

GRN/BLK

GRN/BLK

GRN/BLK

C456
(Terminals 17-20)

PHOTO 103
VIEW 81

See
PGM-FI

See PGM-FI

HOT IN ON OR START

2004 American Honda Motor Co., Inc.

Circuit Index

Circuit Index

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How the Circuit Works

How the Circuit Works

▲

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+

–

33-1

Vehicle Speed Sensor (VSS)

How the Circuit Works

With the ignition switch in ON (II) or START (III),
battery voltage is supplied through fuse 13 and the
YEL wire to the vehicle speed sensor (VSS). The
sensor is grounded through the PCM. The
speedometer and other control units in the circuit
supply 5 volts or more to the BLU/WHT wire. The
vehicle speed sensor (VSS) intermittently grounds
the BLU/WHT wire which generates a pulsed signal
in it. The number of pulses per minute
increases/decreases with the speed of the car.

Refer to the Service Manual (Section 23, Electrical)
for specific tests or troubleshooting procedures.

2004 American Honda Motor Co., Inc.

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34

Cruise Control

’96-’98

G401

PHOTO 79

BLK

BLK

See Ground
Distribution,
page 14-9.

UNDER-DASH
FUSE/RELAY
BOX

PHOTO 75

CRUISE
CONTROL
MAIN SWITCH

Cruise control
main switch
input

Brake
switch
input

C502

PHOTO 77
VIEW 83

FUSE 20

ECU
20A

RED/BLK

1

3

1

CRUISE CONTROL
MAIN SWITCH
LIGHT

“ON”
INDICATOR
LIGHT

ON

OFF

2

RED

13

4

5

See Power
Distribution,
page 10-9.

BLK/YEL

LT GRN

C430

PHOTO 82
VIEW 51

5

LT GRN

1

2

2

LT GRN

GRY

Open with
brake pedal
depressed.

BLK/YEL

See Dash
and Console
Lights

See Dash
and Console
Lights

See Power
Distribution,
page 10-8.

LT GRN

HOT IN ON OR START

2004 American Honda Motor Co., Inc.

Circuit Index

Circuit Index

Menu

Menu

How the Circuit Works

How the Circuit Works

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