Infiniti Q45 (FY33). Manual — part 298

Component Parts and Harness Connector
Location

SEL854W

System Description

WIPER OPERATION

With the ignition switch in the ACC or ON position, power is supplied

I

through 20A fuse [No.

11

, located in the fuse block (J/B)]

I

to front wiper motor terminal

q

3

.

Ground is supplied to front wiper switch terminals

q

17

and

q

20

through body grounds

E22

and

E36

.

Low and high speed wiper operation
When the front wiper switch is placed in the LO position, ground is supplied

I

through terminal

q

14

of the front wiper switch

I

to front wiper motor terminal

q

5

.

With power and ground supplied, the front wiper motor operates at low speed.
When the front wiper switch is placed in the HI position, ground is supplied

I

through terminal

q

16

of the front wiper switch

I

to front wiper motor terminal

q

4

.

With power and ground supplied, the front wiper motor operates at high speed.
Auto stop operation
When the front wiper switch is placed in the OFF position, the front wiper motor will continue to operate until
the wiper arms reach the base of the windshield (Auto stop).
When the front wiper switch is placed in the OFF position, ground is supplied

I

from terminal

q

14

of the front wiper switch

I

to front wiper motor terminal

q

5

, in order to continue front wiper motor operation at low speed.

Ground is also supplied until the wiper arms reaches the base of the windshield

I

through terminal

q

13

of the front wiper switch

I

to wiper relay terminal

q

3

I

through terminal

q

4

of the wiper relay

I

to front wiper motor terminal

q

2

I

through terminal

q

1

of the front wiper motor, and

I

through body grounds

E22

and

E36

.

When the wiper arms reach the base of the windshield, the switch in the front wiper motor moves to the “STOP”
position. The ground path is interrupted and the front wiper motor stops.
Intermittent operation
Intermittent operation is controlled by the BCM.
When the front wiper switch is placed in the INT position, ground is supplied

GI

MA

EM

LC

EC

FE

AT

PD

FA

RA

BR

ST

RS

BT

HA

IDX

WIPER AND WASHER

EL-183

I

to BCM terminal

q

9

I

from front wiper switch terminal

q

15

I

through body grounds

E22

and

E36

.

The desired interval time is input

I

to BCM terminal

q

48

I

from front wiper switch terminal

q

19

and

I

to BCM terminal

q

49

I

from combination meter terminal

q

18

(vehicle speed pulse).

Based on these three inputs, an intermittent ground is supplied

I

to front wiper relay terminal

q

2

I

from BCM terminal

q

7

.

With power and ground supplied, the front wiper relay is activated.
When activated, an intermittent ground is supplied

I

to front wiper motor terminal

q

5

I

through the front wiper switch terminal

q

14

I

to front wiper switch terminal

q

13

I

through front wiper relay terminal

q

3

I

to front wiper relay terminal

q

5

I

through body grounds

E22

and

E36

.

Front wiper motor operates at desired interval with BCM terminal

q

9

grounded.

Intermittent operation can be adjusted from:
Approx. 4 - 19 sec.: (when vehicle is stopped)
Approx. 0.4 - 12 sec.: (when vehicle is moving)
Judgement on vehicle stopped or moving:
Stopped

,

Moving: More than 4 km/h (2 MPH)

Moving

,

Stopped: Less than 2 km/h (1 MPH)

WASHER OPERATION

With the ignition switch in the ACC or ON position, power is supplied

I

through 20A fuse [No.

11

, located in the fuse block (J/B)]

I

to front washer motor terminal

q

2

.

When the lever is pulled to the WASH position, ground is supplied

I

to washer motor terminal

q

1

, and

I

to BCM terminal

q

4

I

from terminal

q

18

of the front wiper switch

I

through terminal

q

17

of the front wiper switch, and

I

through body grounds

E22

and

E36

.

With power and ground supplied, the washer motor operates.
The front wiper motor operates at low speed for about 3 seconds. This feature is controlled by the BCM in the
same manner as the intermittent operation.

WIPER AND WASHER

System Description (Cont’d)

EL-184

Schematic

TEL777

GI

MA

EM

LC

EC

FE

AT

PD

FA

RA

BR

ST

RS

BT

HA

IDX

WIPER AND WASHER

EL-185

Wiring Diagram — WIPER —

TEL095M

WIPER AND WASHER

EL-186