Acura RL (1996-2004 year). Instruction — page 75

91-2

Wiper/Washer

FUSE 58

WIPER
30A

YEL

BLU/YEL

WINDSHIELD
WIPER
MOTOR
RELAY

PHOTO 26

UNDER-HOOD

RELAY BOX C

PHOTO 23

4

C317

PHOTO 54

PARK

RUN

5

2

1

3

WHT

WINDSHIELD
WIPER
INTERMITTENT
RELAY

PHOTO 24

3

1

4

5

GRN/BLK

UNDER-HOOD

RELAY BOX A

PHOTO 23

See Ground
Distribution,
page 14-7.

UNDER-HOOD
FUSE/RELAY
BOX

PHOTO 33

GRN/BLK

GRN/BLK

5

C317

PHOTO 54

3

G302

PHOTO 40

See Ground
Distribution,
pages 14-6
and 14-7.

G301

PHOTO 31

GRN/RED

18

B

5

C330

PHOTO 76

6

A

BLU/WHT

BLU/WHT

BLK

BLK

15

C325

PHOTO 73
VIEW 76

WHT

18

C325

PHOTO 73
VIEW 76

GRN/RED

BLU/WHT

BLU/WHT

2

Intermittent
wiper
control

Park
input

BLK

BLK

6

C307

PHOTO 37
VIEW 47

’99-’04

FUSE 13

METER
SUN ROOF
7.5A

UNDER-
DASH
FUSE/
RELAY
BOX

PHOTO 75

2

YEL

See Power
Distribution,
page 10-10.

To page 91-3.

GRN/BLK

GRN/BLK

C331

PHOTO 75
VIEW 66

See Power
Distribution,
page 10-10.

HOT AT ALL TIMES

HOT IN ON OR START

2004 American Honda Motor Co., Inc.

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91-3

Wiper/Washer

’99-’04

See Ground
Distribution,
page 14-7.

From page
91-2.

M

WINDSHIELD
WIPER
MOTOR

PHOTO 54

HIGH

LOW

C317

PHOTO 54

2

BLU

BLU

4

BLU

1

BLU/YEL

BLU/YEL

5

BLU/YEL

OFF

Wiper
Switch

Mist
Switch

Washer
Switch

WINDSHIELD

WIPER/

WASHER

SWITCH

VIEW 119

INT

LO

HI

OFF

WASH

Intermittent
Dwell Time
Controller

OFF

INT

LO

HI

OFF

INT

LO

HI

OFF

MIST

OFF

MIST

3

C429

PHOTO 82
VIEW 62

5

BLU

4

BLU/YEL

C324

PHOTO 72
VIEW 21

2

8

GRN/WHT

GRN/YEL

11

GRN

GRN

UNDER-DASH
FUSE/RELAY
BOX

PHOTO 75

12

WHT

WHT

10

BLK

BLK

13

BLK/WHT

BLK/WHT

19

6

5

20

C429

PHOTO 82
VIEW 62

B

M

BLK/WHT

3

C327

PHOTO 73
VIEW 89

BLK/WHT

BLK/WHT

1

2

WINDSHIELD
WASHER
MOTOR

PHOTO 56

G302

PHOTO 40

G401

PHOTO 79

See Ground
Distribution,
page 14-11.

DRIVER’S MULTIPLEX

CONTROL UNIT

PHOTO 79

VIEW 114

GRN/WHT

GRN/YEL

Intermittent
wiper ON
input

Windshield
washer
ON input

Intermittent
dwell time
controller
input

GRN/BLK

3

4

7

BLK

2

5

8

1

WHT

1

2

BLK

WHT

C10

1

C326

PHOTO 73
VIEW 72

GRN/BLK

GRN/BLK

2004 American Honda Motor Co., Inc.

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91-4

Wiper/Washer

See Power
Distribution,
page 10-18.

BLU/

WHT

See Brake System
Indicator Light,
page 71, 71-1, or 71-2.

BLK/BLU

See TCS,
Brake Lights

See ABS,
Cruise Control,
VSA

YEL

GRN/WHT

All Models

FUSE 39

STOP HORN
15A
(

*

)

20A (

**

)

5

C301

PHOTO 36

G402

PHOTO 106

WHT/YEL

3

UNDER-
HOOD
FUSE/
RELAY
BOX

PHOTO 33

FUSE 13

METER (

*)

METER SUN ROOF (

**

)

7.5A

See Power
Distribution,
page 10-10.

8

See Power
Distribution,
page 10-10.

YEL

14

A

UNDER-
DASH FUSE/
RELAY
BOX

PHOTO 75

BRAKE PEDAL
POSITION SWITCH
Closed with brake
pedal pressed.

PHOTO 81

PARKING BRAKE
SWITCH
Closed with parking
brake applied.

PHOTO 81

1

2

D3

D4

P

R

N

A/T GEAR
POSITION
SWITCH

PHOTO 66

4

GRN/WHT

See Automatic
Transmission
Controls

GRN/WHT

12

B

8

(

***

4)

C410

PHOTO 79
VIEW 50

See A/T Gear
Position Indicator

13

A

10

PNK/

BLU

10

GRN/WHT

GRN/WHT

9

RED/

YEL

22

22

BRN/

WHT

9

B

DRIVER’S
MULTIPLEX
CONTROL
UNIT

PHOTO 79
VIEW 114

UNDER-DASH

FUSE/RELAY

BOX

PHOTO 75

3

BLK

2

A

BLK

2

GRN/RED

)

(Canada GRN/WHT)

16

C

1

C470

VIEW 38

8

C470

VIEW 38

See Ground
Distribution,
page 14-12.

BLK

See Ground
Distribution,
page 14-4
or 14-8.

4

C406

PHOTO 74
VIEW 3

BLK

8

A

See Ground
Distribution,
page 14-4
or 14-8.

See Vehicle
Speed
Sensor

7

C402

PHOTO 77
VIEW 37

4

GRN/RED

)

(Canada GRN/WHT)

See Vehicle
Speed Sensor
(VSS)

PASSENGER’S
MULTIPLEX
CONTROL
UNIT

PHOTO 107
VIEW 112

See Ground
Distribution,
page 14-12.

G402

PHOTO 106

G401 (*)

PHOTO 79

G251 (**)

PHOTO 46

WHT/YEL

GRN/WHT

GRN/WHT

C464
(Terminals 14-16)

PHOTO 103
VIEW 82

C448
(Terminals 14-16)

PHOTO 111
VIEW 80

BLK

BLK

BLK

BLK

BLK/BLU

BLK/BLU

BLK/BLU

Brake
switch
input

Wakeup A-D

line

D-A
line

Brake/
park
input

Park
position
input

VSS
input

Ground

Ignition input

Wakeup

A-D
line

D-A
line

Ground

Ignition
input

*

= ’96-’98

**

= ’99-’04

***

= ’02-’04 USA

HOT AT ALL TIMES

HOT IN ON OR START

C404

PHOTO 76
VIEW 49

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91-5

Wiper/Washer

How the Circuit Works

Low Speed

With the ignition switch in ON (II) or START (III),
battery voltage is applied to the windshield wiper
motor through the windshield wiper motor relay.
When you move the wiper switch to LO, the low
speed winding of the motor is grounded through the
low contact of the wiper/washer switch, and the
wipers run at low speed.

Park/Off

When you turn off the wiper switch, ground is
provided for the low speed winding of the
windshield wiper motor. The ground is provided
through the wiper switch, intermittent wiper relay,
and the cam switch on the motor to G301. The
wipers run at low speed until the cam switch on the
motor moves to PARK, removing the ground. The
wipers then stop in the park position.

High Speed

When you move the wiper switch to HI, the high
speed windings of the windshield wiper motor are
grounded through the HI contact of the wiper/
washer switch, and the wipers run at high speed.

Intermittent

’96-’98:

When you move the wiper switch to INT, battery
voltage is applied through fuse 23 through the
windshield wiper/washer switch to the driver’s
multiplex control unit which energizes the
windshield wiper intermittent relay by applying a
ground signal to the relay coil.

’99-’04:

The contacts of the windshield wiper motor relay
are closed with the ignition switch in ON (II) or
START (III). When you move the wiper switch to
INT, battery voltage is applied through fuse 58
through the windshield wiper/washer switch to the
driver’s multiplex control unit which energizes the
windshield wiper intermittent relay by applying a
ground signal to the relay coil.

The wiper sweep time interval is controlled by
vehicle speed and the resistance of the intermittent
dwell time controller. The resistance of the controller
varies from 0 to 30k ohm. The vehicle speed sensor
sends a signal directly to the driver’s multiplex
control unit. Vehicle speed will determine the rate of
the wiper cycle. If you set the intermittent time to the
shortest delay, the wipers will change from
intermittent to low speed operation at a driving
speed above 20km/h (12 mph).

Mist

When you push the wiper/washer lever down and
hold it, the high speed winding of the windshield
wiper motor is grounded through the MIST contact
in the wiper/washer switch. The wipers sweep at
high speed until the lever is released. The
PARK/OFF function then takes over and the wipers
stop in the PARK position.

Washer

When you pull the wiper/washer lever toward you,
battery voltage is applied to the windshield washer
motor and the driver’s multiplex control unit. The
driver’s multiplex control unit grounds the coil of the
intermittent wiper relay. The relay, in turn, provides
ground to the low speed windings of the wiper
motor. The washer motor pumps washer fluid onto
the windshield and the wipers run at low speed until
you release the lever. The wipers make one more
sweep after the lever is released.

Refer to the Service Manual (Section 23, Electrical)
for testing and troubleshooting procedures.

2004 American Honda Motor Co., Inc.

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