Acura RL (1996-2004 year). Instruction — page 85

110-18

Headlights

C325

PHOTO 73
VIEW 76

HEADLIGHT
RELAY

PHOTO 35

GAUGE

ASSEMBLY

PHOTO 71

VIEW 113

B

C430

PHOTO 82
VIEW 51

B

C430

PHOTO 82
VIEW 51

HIGH BEAM
INDICATOR
LIGHT

See Power
Distribution,
page 10-1.

FUSE 31

BATTERY
120A

8

20

8

RED/BLU

RED/GRN

10

LEFT

HEADLIGHT

ORN

1

3

2

RED/YEL

RED/BLU

16

UNDER-
HOOD
FUSE/
RELAY
BOX

PHOTO 33

C306

PHOTO 36
VIEW 36

RIGHT

HEADLIGHT

RED/BLU

3

1

2

RED/GRN

ORN

DAYTIME

RUNNING

LIGHTS

CONTROL UNIT

PHOTO 150

VIEW 65

11

1

10

RED/GRN

YEL/BLU

6

C305

PHOTO 36
VIEW 20

6

DRL
output

High beam/
DRL mode
control

RED/GRN

YEL/BLU

To page
110-19.

‘96-‘98 Canada

FUSE 45

R

15A

HEAD-
LIGHT

FUSE 46

L

15A

HEAD-
LIGHT

RED/WHT

1

2

3

4

LOW
BEAM
CUT
RELAY

PHOTO 25

UNDER-
HOOD
RELAY
BOX A

PHOTO 23

C326

PHOTO 73
VIEW 72

15

ORN

4

RED/BLU

RED/BLU

RED/BLU

C410

PHOTO 79
VIEW 50

10

YEL/BLU

C326

PHOTO 73
VIEW 72

5

RED/GRN

RED/GRN

RED/BLU

1

ORN

ORN

3

2

C202

PHOTO 112
VIEW 27

YEL/BLU

ORN

RED/GRN

C410

PHOTO 79
VIEW 50

12

C201

PHOTO 112
VIEW 71

16

RED/GRN

18

YEL/BLU

YEL/BLU

LOW

HIGH

HIGH

LOW

HOT AT ALL TIMES

2004 American Honda Motor Co., Inc.

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+

110-19

Headlights

‘96-‘98 Canada

DIMMER
RELAY

PHOTO 35

From page
110-20.

UNDER-HOOD
FUSE/RELAY
BOX

PHOTO 33

From page
110-18.

5

C305

PHOTO 36
VIEW 20

7

7

C306

PHOTO 36
VIEW 36

G301

PHOTO 31

3

2

BLU/RED

RED/BLU

1

BRN/

YEL

See Fog
Lights

BLU/RED

See Security
System

BLU/RED

BLU/RED

From page
110-20.

See Headlight
Switch,
page 100-3.

Headlight
Switch

Flash-to-
pass
Switch

Dimmer
Switch

COMBINATION
LIGHT SWITCH

VIEW 116

C415

PHOTO 81
VIEW 77

6

G401

PHOTO 79

BLK

BLK

OFF

ON

OFF

ON

LO

HI

RED/GRN

C429

PHOTO 82
VIEW 62

4

HEAD

OFF

PARK

HEAD

OFF

PARK

5

PNK/BLK

RED/BLK

9

HEAD

OFF

PARK

See Headlight Switch,
page 100-3.

2

8

BLU/RED

RED/BLU

10

BRN/

WHT

4

RED/GRN

5

RED/YEL

3

RED/BLU

BLK

BLK

11

9

PNK/BLK

7

C415

PHOTO 81
VIEW 77

See Ground
Distribution,
page 14-7.

See Ground
Distribution,
page 14-8.

RED/BLU

C326

PHOTO 73
VIEW 72

13

C326

PHOTO 73
VIEW 72

12

BLU/RED

BLK

2004 American Honda Motor Co., Inc.

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How the Circuit Works

110-20

Headlights

3

)

(

*

5)

2

(

*

3)

5

)

1

GAUGE
RELAY

PHOTO 27

G301

PHOTO 31

See Ground
Distribution,
page 14-6.

See Power
Distribution,
page 10-10.

FUSE 13

METER
7.5A

See Power
Distribution,
page 10-10.

YEL

YEL

C331

PHOTO 75
VIEW 66

2

See Gauge
Assembly,
page 80 or 80-5.

A

22

B

17

WHT/RED

See Gauge Assembly

WHT/RED

DRL
INDICATOR
LIGHT

GAUGE
ASSEMBLY

PHOTO 71
VIEW 113

C305

PHOTO 36
VIEW 20

2

WHT/BLU

C326

PHOTO 73
VIEW 72

17

WHT/BLU

5

FUSE 55

METER
15A

RED/YEL

C307

PHOTO 37
VIEW 47

1

UNDER-
HOOD
FUSE/
RELAY
BOX

PHOTO 33

UNDER-
DASH
FUSE/
RELAY
BOX

PHOTO 75

FUSE 12

(RUNNING LIGHT)
7.5A

YEL/RED

C403

PHOTO 74
VIEW 90

11

FUSE 10

(RUNNING LIGHT)
10A

RED/BLU

C405

PHOTO 74
VIEW 60

6

9

YEL

C504

PHOTO 83
VIEW 68

7

YEL

See Ground
Distribution,
page 14-8.

G401

PHOTO 79

DRL indicator
light control

Headlight
ON input

To page
110-19.

UNDER-
HOOD
FUSE/
RELAY
BOX

PHOTO 33

UNDER-
HOOD
RELAY
BOX C

PHOTO 23

C410

PHOTO 79
VIEW 50

11

WHT/BLU

WHT/BLU

3

WHT/BLU

DAYTIME
RUNNING
LIGHTS
CONTROL
UNIT

PHOTO 150
VIEW 65

4

See Ground
Distribution,
page 14-16.

G651

PHOTO 133

7

BLK

BLK

BLK

Dimmer relay input

Ground

6

)

(’98 3)

C414

PHOTO 83
VIEW 91

17

)

(’98 9)

C414

PHOTO 83
VIEW 91

5

)

(’98 2)

GRN/WHT

GRN/WHT

6

See Brake
System
Indicator Light

PARKING
BRAKE SWITCH
Closed with
parking brake
applied.

PHOTO 81

YEL/RED

RED/BLU

Ignition
input

Battery
input

GRN/WHT

GRN/WHT

Parking
brake
input

C410

PHOTO 79
VIEW 50

9

BLU/RED

8

BLU/RED

To page
110-19.

BLK

GRN/RED

Brake
indicator
control

See Brake
System
Indicator Light

13

12

2

‘96-‘98 Canada

*

=’98

HOT IN ON OR START

HOT IN ON

HOT AT ALL TIMES

HOT AT ALL TIMES

2004 American Honda Motor Co., Inc.

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110-21

Headlights

How the Circuit Works

Daytime Running Lights

When you turn the ignition switch to ON (II) with the
parking brake released, the daytime running lights
control unit supplies about 6 volts to the RED/GRN
wire (cavity 10), about 12 volts to the YEL/BLU wire
(cavity 1), and ground to the RED/BLU wire (cavity
11). This provides about 6 volts to both high beam
headlights, causing them to come on at reduced
brightness. At the same time, about 12 volts
energizes the coil of the low beam cut relay,
removing the ground path to the low beams. If you
apply the parking brake, ground is applied to the
daytime running lights control unit at the GRN/WHT
wire. If the parking brake is applied before you turn
the ignition switch to ON (II), the daytime mode will
remain off until you release the parking brake. Once
the high beams are in the daytime mode, applying
the parking brake will not turn them off. When you
switch to low beam, high beam, or flash-to-pass
operation, ground is applied to the daytime running
lights control unit through the BLU/RED wire, and
the control unit then turns off the daytime running
lights mode.

Low Beams

The headlight relay receives battery voltage at all
times. When you turn the headlight switch to the
HEAD position with the dimmer switch in LOW,
ground is applied through the BLU/RED wire to the
coil of the headlight relay. This energizes the relay,
applying battery voltage to the left and right low
beam headlights through fuses 45 and 46. The low
beam bulbs come on because the opposite terminal
is tied to ground through the low beam cut relay and
dimmer relay.

High Beams

When you pull the dimmer switch to HIGH with the
low beams already on, ground is applied to the
dimmer relay from the dimmer switch. This
energizes the dimmer relay, applying ground
through the WHT/BLU wires to the daytime
running lights control unit. The control unit applies
ground through the RED/BLU (cavity 11) and
YEL/BLU (cavity 1) wires to the high beam bulbs
and high beam indicator, which turns on the high
beams and indicator light. The low beam headlights
go off because their ground path is interrupted by
the activated dimmer relay.

Flash-to-Pass

When you hold the flash-to-pass switch in the ON
position, ground is applied through the BLU/RED
wire to the coil of the headlight relay and through
the RED/BLU wire to the coil of the dimmer relay.
This energizes the headlight relay, applying battery
voltage to the low and high beam bulbs and to the
dimmer relay. As the high beam bulbs receive
battery voltage, the dimmer relay is energized,
applying ground through the WHT/BLU wires to the
daytime running lights control unit. The control unit
applies ground through the RED/BLU (cavity 11)
and YEL/BLU (cavity 1) wires to the high beam
bulbs and high beam indicator, which turns on the
high beams and indicator light. The low beams go
off because their ground path is interrupted by the
activated dimmer relay.

2004 American Honda Motor Co., Inc.

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