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WIPER, WASHER & HORN

K ELECTRICAL

SECTION
WIPER, WASHER & HORN
WW B

E
CONTENTS
PRECAUTION ........................................................... 3
. Removal and Installation for Front Wiper Arms, F
Precautions for Supplemental Restraint System Adjustment for Wiper Arms Stop Location ............. 20 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REMOVAL .......................................................... 20.
SIONER" ................................................................. 3
. INSTALLATION .................................................. 20 . G
Wiring Diagrams and Trouble Diagnosis ................. 3 . ADJUSTMENT ................................................... 21 .
FRONT WIPER AND WASHER SYSTEM ................. 4 . Removal and Installation of Front Wiper Motor and
System Description ................................................. 4. Linkage .................................................................. 21
.
H
WIPER OPERATION ........................................... 4 . REMOVAL .......................................................... 21.
WASHER OPERATION ........................................ 5 . INSTALLATION .................................................. 21 .
Component Parts and Harness Connector Location 5 ..... Disassembly and Assembly Front Wiper Motor and
Schematic ............................................................... 6
. Linkage .................................................................. 22
. I
Wiring Diagram -- WIPER -- ................................. 7 . DISASSEMBLY .................................................. 22 .
Terminal and Reference Values for BCM .............. 10 . ASSEMBLY ........................................................ 22 .
Work Flow ............................................................. 10
. Washer Nozzle Adjustment ................................... 22 . J
Preliminary Inspection ............................................11 . Washer Tube Layout ............................................. 23 .
SETTING CHANGE FUNCTIONS ......................11 . Removal and Installation for Front Washer Nozzle 24 ...
INSPECTION FOR POWER SUPPLY AND REMOVAL .......................................................... 24.
WW
GROUND CIRCUIT .............................................11 . INSTALLATION .................................................. 24 .
CONSULT-II Function ........................................... 12 . Inspection for Washer Nozzle ................................ 24 .
CONSULT-II BASIC OPERATION PROCEDURE CHECK VALVE ................................................... 24 .
... 12 Removal and Installation for Front Wiper and L
WORK SUPPORT .............................................. 13 . Washer Switch ....................................................... 24
.
DATA MONITOR ................................................ 13 . REMOVAL .......................................................... 24.
ACTIVE TEST .................................................... 13 . INSTALLATION .................................................. 24 . M
On Board Diagnosis .............................................. 14 . Removal and Installation for Washer Tank ............ 25 .
DIAGNOSIS ITEM FOR FRONT WIPER AND REMOVAL .......................................................... 25.
WASHER SYSTEM ............................................ 14 . INSTALLATION .................................................. 25 .
SWITCH MONITOR ........................................... 14 . Removal and Installation for Washer Pump .......... 25 .
Intermittent Wiper Does Not Operate .................... 15 . REMOVAL .......................................................... 25.
Intermittent Time Of Wiper Cannot Be Adjusted ... 17 INSTALLATION .................................................. 25 .
Wiper And Washer Activate Individually But Not In CIGARETTE LIGHTER ............................................ 26 .
Combination .......................................................... 17
. Wiring Diagram -- CIGAR -- ................................ 26 .
Intermittent Wiper Operates, But There Is No Removal and Installation ....................................... 27 .
Change In Intermittent Time Between When Vehicle REMOVAL .......................................................... 27.
Is Stopped And Moving ......................................... 18 . INSTALLATION .................................................. 27 .
Wiper And Washer Activate Individually But Inter- POWER SOCKET .................................................... 28 .
mittent Wiper And Washer Combination Does Not Wiring Diagram -- CIGAR -- ................................ 28 .
Operate ................................................................. 19
. Removal and Installation ....................................... 29 .
Wiper and Washer Switch Circuit Check ............... 20 . REMOVAL .......................................................... 29.
INSPECTION OF SWITCH CIRCUIT ................ 20 . INSTALLTION ..................................................... 29 .

Revision; 2004 April WW-1 2003 M45
HORN ....................................................................... 30
. Wiring Diagram -- HORN -- .................................30 .
Removal and installation ........................................31
.
REMOVAL ...........................................................31
.
INSTALLATION ...................................................31
.

Revision; 2004 April WW-2 2003 M45
PRECAUTION

PRECAUTION PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AKS004VC

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front C
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING: D
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer. E
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section. F
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
G
Wiring Diagrams and Trouble Diagnosis AKS002L7

When you read wiring diagrams, refer to the following:
H
q Refer to GI-14, "How to Read Wiring Diagrams" .
q Refer to PG-2, "POWER SUPPLY ROUTING" for power distribution circuit.
When you perform trouble diagnosis, refer to the following: I
q Refer to GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" .
q Refer to GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident" .
J

Revision; 2004 April WW-3 2003 M45
FRONT WIPER AND WASHER SYSTEM

FRONT WIPER AND WASHER SYSTEM PFP:28810

System Description AKS002L8

WIPER OPERATION
Description
With the ignition switch in the ON position, power is supplied
q through 20A fuse [No. 34, located in the fuse block (J/B) No.2]
q to front wiper motor terminal 4, and
q to front wiper relay terminal 1.
Ground is supplied to front wiper switch terminal 17 and 20 through body grounds M25 and M115.
Low (MIST) and High Speed Wiper Operation
When the wiper switch is placed in the LO or MIST position, ground is supplied
q through terminal 14 of the front wiper switch
q to front wiper motor terminal 6.
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
q through terminal 16 of the front wiper switch
q to front wiper motor terminal 5.
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
q from terminal 14 of the front wiper switch
q to front wiper motor terminal 6, 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
q through terminal 13 of the front wiper switch
q to front wiper relay terminal 3
q through terminal 4 of the front wiper relay
q to front wiper motor terminal 3
q through terminal 1 of the front wiper motor, and
q through body grounds E24, E42 and E62.
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
q to BCM terminal 9
q from front wiper switch terminal 15
q through body grounds M25 and M115.
The desired interval time is input
q to BCM terminal 48
q from front wiper switch terminal 19 and
q to BCM terminal 49
q from combination meter terminal 38 (vehicle speed pulse).
The desired interval time is input
q to front wiper relay terminal 2
q to BCM terminal 128
With power and ground supplied, the front wiper relay is activated. When activated, an intermittent ground is
supplied
Revision; 2004 April WW-4 2003 M45
FRONT WIPER AND WASHER SYSTEM

q to front wiper motor terminal 6
q through the front wiper switch terminal 14 A
q to front wiper switch terminal 13
q through front wiper relay terminal 3
B
q to front wiper relay terminal 5
q through body grounds E24, E42 and E62.
Front wiper motor operates at desired interval with BCM terminal 9 grounded. Intermittent operation can be C
adjusted from: Approx. 0.9 - 45 sec.: (when vehicle is stopped) Approx. 0.4 - 30 sec.: (when vehicle is moving)
Judgement on vehicle stopped or moving: Stopped, Moving: More than 5 km/h (3 MPH) Moving, Stopped:
Less than 2 km/h (1 MPH)
D
WASHER OPERATION
With the ignition switch in the ON position, power is supplied
q through 20A fuse [No. 34, located in the fuse block (J/B) No.2] E
q to front washer motor terminal 1.
When the lever is pulled to the WASH position, ground is supplied
q to front washer motor terminal 2, and F
q to BCM terminal 4
q from terminal 18 of the front wiper switch
q through terminal 17 of the front wiper switch, and G
q through body grounds M25 and M115.
With power and ground supplied, the front washer motor operates. The front wiper motor operates at low
H
speed for about 3 seconds. This feature is controlled by the BCM in the same manner as the intermittent oper-
ation.
Component Parts and Harness Connector Location AKS002L9
I

SKIA4430E

Revision; 2004 April WW-5 2003 M45
FRONT WIPER AND WASHER SYSTEM

Schematic AKS002LA

TKWA0626E

Revision; 2004 April WW-6 2003 M45
FRONT WIPER AND WASHER SYSTEM

Wiring Diagram -- WIPER -- AKS002LB

TKWA0627E

Revision; 2004 April WW-7 2003 M45
FRONT WIPER AND WASHER SYSTEM

TKWA0628E

Revision; 2004 April WW-8 2003 M45
FRONT WIPER AND WASHER SYSTEM

TKWA0629E

Revision; 2004 April WW-9 2003 M45
FRONT WIPER AND WASHER SYSTEM

Terminal and Reference Values for BCM AKS002LC

CONDITION
WIRE IGNI-
TER-
COLOR ITEM TION DATA (DC)
MINAL CONDITION OR OPERATION
SWIT
CH
WASH Approx. 0
4 P Washer switch signal ON Wiper switch
OFF Approx. 12

Wiper switch INT sig- INT Approx. 0
9 OR ON Wiper switch
nal OFF Approx. 8

Intermittent wiper vol- Wiper intermittent Long Approx. 3.6
48 R/G ON
ume signal interval Short Approx. 0

Vehicle speed signal Vehicle speed approx. 40 km/h (25
49 PU/W ON
(2-pulse) MPH)

ELF1080D

56 B Ground ON - Approx. 0
68 W/B Ignition on signal ON - Approx. 12
105 Y/L Battery Power supply OFF - Approx. 12
113 B Ground ON - Approx. 0
Wiper is moving
Approx. 0
Wiper auto
124 SB ON
stop signal Wiper while the vehicle is stopped
Approx. 12

Wiper motor
128 R/Y ON Wiper switch: INT position
operation signal

SKIA3507E

Work Flow AKS002LD

1. Confirm the symptom or customer complaint.
2. Understand the system description. Refer to WW-4, "System Description" .
3. Perform preliminary inspection. Refer to WW-11, "Preliminary Inspection" .
4. According to the trouble diagnosis chart, repair or replace the cause of the malfunction.
5. Does wiper function operate normally? If it operates normally, GO TO 6. If not, GO TO 4.
6. End

Revision; 2004 April WW-10 2003 M45
FRONT WIPER AND WASHER SYSTEM

Preliminary Inspection AKS002LE

SETTING CHANGE FUNCTIONS A
q With CONSULT-II, each function can be changed in setting. Refer to WW-13, "WORK SUPPORT" .
CAUTION:
After the setting was changed, the new setting will be maintained even if the battery was discon- B
nected.
CONSULT-ll
Setting change mode Description
(WORK SUPPORT) C
Wiper intermittent speed control by vehi- ON Activated
cle speed OFF Disactivated
D
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
Inspection procedure
1. CHECK FUSE E

q Make sure wiper and washer fuse is blown.
Unit Power source Fuse No. F
Front wiper motor, Front washer motor,
Ignition ON or START 34
Front wiper relay
G
CAUTION:
For fuse number, refer to WW-5, "Component Parts and Harness Connector Location" .
OK or NG
H
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
2, "POWER SUPPLY ROUTING" .
I
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect the connector of front wiper motor, front washer motor and front wiper relay. J
2. Check voltage between the following connector terminals and ground.

Terminals (wire color)
Unit (Connector) Ignition switch condition Voltage WW
(+) (

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