Acura RL (1996-2004 year). Instruction — page 65

64-2

Rear Window Defogger

UNDER-DASH
FUSE/RELAY
BOX

PHOTO 75

WHT/

GRN

FUSE 33

REAR
DEFROSTER
40A

C305

PHOTO 36
VIEW 20

1

UNDER-
HOOD
FUSE/
RELAY
BOX

PHOTO 33

REAR
WINDOW
DEFOGGER

YEL/BLU

YEL/BLU

REAR
WINDOW
DEFOGGER
RELAY

PHOTO 25

3

1

2

1

B

2

A

REAR WINDOW
DEFOGGER
COIL

PHOTO 154

BLK

5

C327

PHOTO 73
VIEW 89

2

YEL/GRN

C324

PHOTO 72
VIEW 21

2

C442

PHOTO 108
VIEW 92

15

YEL/BLU

YEL/BLU

C402

PHOTO 77
VIEW 37

2

YEL/BLK

YEL/BLK

YEL/BLK

See Power
Distribution,
page 10-7.

FUSE 19

R/C MIRROR
7.5A

See Power
Distribution,
page 10-7.

UNDER-HOOD
RELAY BOX A

PHOTO 23

A

PHOTO 119

B

PHOTO 121

YEL/BLK

C327

PHOTO 73
VIEW 89

5

’99-’04 (Navigation)

(’04 Navi 17)

11

)

B

C446

PHOTO 108
VIEW 79

(’99-’03 18)

19

)

CLIMATE
CONTROL UNIT
(rear window
defogger switch and
defogger timer circuit
are built into climate
control unit)

PHOTO 201 (’04)
VIEW 103

YEL/GRN

YEL/GRN

HOT IN ON

HOT AT ALL TIMES

2004 American Honda Motor Co., Inc.

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64-3

Rear Window Defogger

How the Circuit Works

Voltage is applied at all times through fuse 33 to the
rear window defogger relay contacts. With the
ignition switch in ON (II), voltage is applied through
fuse 13 to the passenger’s multiplex control unit
and through fuse 19 to the rear window defogger
relay coil.

except Navigation

When you push the defogger switch once, a path to
ground is provided for the rear window defogger
relay through the passenger’s multiplex control unit.
The defogger ON indicator light comes on and the
rear window relay contacts close. Voltage is applied
to the defogger grid on the inside surface of the rear
window, and the grid heats the rear window to
remove any fog from the glass.

You can turn the defogger off by pushing the defogger
switch a second time or by turning the ignition switch
to LOCK (0). A timer in the passenger’s multiplex
control unit will automatically turn the defogger off
after it has been on continuously for 20 to 30 minutes.

Navigation (’99-’04)

The rear window defogger switch is on the climate
control panel. When you push it once, a path to
ground is provided for the rear window defogger
relay through the climate control unit and the rear
window relay contacts close. Voltage is applied to
the defogger grid on the inside surface of the rear
window, and the grid heats the rear window to
remove any fog from the glass.

You can turn the defogger off by pushing the defogger
switch a second time or by turning the ignition switch
to LOCK (0). A timer in the climate control unit will
automatically turn the defogger OFF after it has been
ON continuously for 20 to 30 minutes.

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

2004 American Honda Motor Co., Inc.

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71

Brake System Indicator Light

See Ground Distribution,
page 14-7.

With TCS

See Gauge
Assembly,
page 80 or 80-5.

YEL

YEL

See Ground
Distribution,
page 14-6.

C331

PHOTO 75
VIEW 66

See Power Distribution,
page 10-10.

GRN/RED

Brake/
park
input

(PARK)

ABS
CONTROL
UNIT

PHOTO 111
VIEW 111

UNDER-HOOD
FUSE/RELAY
BOX

PHOTO 33

GAUGE
ASSEMBLY

PHOTO 71
VIEW 113

See Power Distribution,
page 10-10.

BRAKE
SYSTEM
INDICATOR
LIGHT

PARKING
BRAKE SWITCH
Closed with parking
brake applied.

PHOTO 81

C307

PHOTO 37
VIEW 47

1

2

RED/YEL

5

GRN/RED

11

UNDER-DASH
FUSE/RELAY
BOX

PHOTO 75

B

C502

PHOTO 77
VIEW 83

GRN/RED

G302 (’96-’98)

PHOTO 40

G301 (’99)

PHOTO 31

C321

PHOTO 39

GRN/RED

C322

PHOTO 39

BRAKE FLUID
LEVEL SWITCH
Closed with low
fluid level.

PHOTO 39

See Ground
Distribution,
page 14-7.

See Gauge
Assembly

14

C331

PHOTO 75
VIEW 66

BLK

FUSE 13

METER (’96-’98)
METER,
SUN ROOF (’99)
7.5A

FUSE 55

METER
15A

GRN/RED

Brake/
park
input

(PARK)

2

B

TCS
CONTROL
UNIT

PHOTO 151
VIEW 107

’96-’99 USA

WHT/BLU

A

5

GAUGE
RELAY

PHOTO 27

(

*

3)

5

1

3

(

*

5)

2

UNDER-HOOD
RELAY
BOX C

PHOTO 23

See
Charging
System

GRN/RED

1

C421

(Terminals
17-20)

PHOTO 88
VIEW 78

C405

PHOTO 74
VIEW 60

GRN/RED

Brake/
park
input

IMMOBILIZER
CONTROL
UNIT

PHOTO 84
VIEW 98

GRN/RED

Brake/
park
input

16

C

DRIVER’S
MULTIPLEX
CONTROL
UNIT

PHOTO 79
VIEW 114

UNDER-DASH

FUSE/RELAY BOX

PHOTO 75

7

A

(

*

4)

11

(B

*

)

A

C409

PHOTO 79
VIEW 61

10

GRN/RED

GRN/RED

C629

PHOTO 152
VIEW 85

4

GRN/RED

UNDER-DASH
FUSE/RELAY
BOX

PHOTO 75

WHT/RED

WHT/RED

22

A

G301

PHOTO 31

BLK

GRN/RED

*

= ’98-’99

BLK

BLK

HOT IN ON OR START

HOT AT ALL TIMES

2004 American Honda Motor Co., Inc.

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71-1

Brake System Indicator Light

See Ground Distribution,
page 14-7.

G302 (’96-’98)

PHOTO 40

C322

PHOTO 39

See Ground
Distribution,
page 14-7.

BLK

BLK

BLK

C502

PHOTO 77
VIEW 83

See
Charging
System

B

A

See Gauge Assembly,
page 80 or 80-5.

See Ground
Distribution,
page 14-6.

C331

PHOTO 75
VIEW 66

See Power Distribution,
page 10-10.

GRN/RED

Brake/
park
input

(PARK)

ABS
CONTROL
UNIT

PHOTO 111
VIEW 111

UNDER-HOOD
FUSE/RELAY
BOX

PHOTO 33

GAUGE
ASSEMBLY

PHOTO 71
VIEW 113

See Power Distribution,
page 10-10.

BRAKE
SYSTEM
INDICATOR
LIGHT

C307

PHOTO 37
VIEW 47

1

2

RED/YEL

YEL

YEL

5

GRN/RED

11

UNDER-DASH
FUSE/RELAY
BOX

PHOTO 75

C321

PHOTO 39

GRN/RED

BRAKE FLUID
LEVEL SWITCH
Closed with low
fluid level.

PHOTO 39

See Gauge
Assembly

14

C331

PHOTO 75
VIEW 66

FUSE 13

METER (’96-’98)
METER, SUN ROOF
(’99)
7.5A

FUSE 55

METER
15A

GRN/RED

Brake/
park
input

(PARK)

2

B

TCS
CONTROL
UNIT

PHOTO 151
VIEW 107

’96-’99 Canada

WHT/BLU

5

GAUGE
RELAY

PHOTO 27

(

*

3)
5

)

1

3

)

(

*

5)

2

UNDER-HOOD
RELAY
BOX C

PHOTO 23

GRN/RED

1

C421

(Terminals
17-20)

PHOTO 88
VIEW 78

C405

PHOTO 74
VIEW 60

GRN/RED

Brake/
park
input

IMMOBILIZER
CONTROL
UNIT

PHOTO 84
VIEW 98

GRN/WHT

Brake/
park
input

16

C

DRIVER’S
MULTIPLEX
CONTROL
UNIT

PHOTO 79
VIEW 114

UNDER-DASH

FUSE/RELAY BOX

PHOTO 75

7

A

(

*

4)

11

(B

*

)

A

C629

PHOTO 152
VIEW 85

4

GRN/RED

UNDER-DASH
FUSE/RELAY
BOX

PHOTO 75

WHT/RED

WHT/RED

22

A

G301

PHOTO 31

BLK

C414

PHOTO 83
VIEW 91

5

13

See
Headlights

6

DAYTIME
RUNNING
LIGHTS
CONTROL
UNIT

PHOTO 150
VIEW 65

GRN/RED

C409

PHOTO 79
VIEW 61

10

GRN/RED

GRN/RED

GRN/WHT

GRN/WHT

P

!

GRN/RED

*

= ’98-’99

PARKING
BRAKE SWITCH
Closed with parking
brake applied.

PHOTO 81

HOT IN ON OR START

HOT AT ALL TIMES

G301 (’99)

PHOTO 31

2004 American Honda Motor Co., Inc.

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How the Circuit Works

How the Circuit Works

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