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WIPER, WASHER & HORN


K ELECTRICAL

                                                                                                                                                                       A


                                                                                                                                                                       B
                                                                                           SECTION
                                                                                     WIPER, WASHER & HORN                                                              C


                                                                                                                                                                       D


                                                                                                                                                                       E
                                                                    CONTENTS
PRECAUTION ........................................................... 3   .          Cannot Be Adjusted ............................................... 27   .        F
 Precautions for Supplemental Restraint System                                        Wipers Do Not Wipe When Front Washer Operates 28                        ...
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                              Removal and Installation for Front Wiper Arms,
 SIONER" ................................................................. 3
                                                                           .          Adjustment for Wiper Arms Stop Location ............. 29                .        G
 Wiring Diagrams and Trouble Diagnosis ................. 3                 .            REMOVAL .......................................................... 29 .
FRONT WIPER AND WASHER SYSTEM ................. 4                          .            INSTALLATION .................................................. 29    .
 Components Parts and Harness Connector Loca-                                           ADJUSTMENT ................................................... 29     .
                                                                                                                                                                       H
 tion .......................................................................... 4
                                                                           .          Removal and Installation of Front Wiper Motor
 System Description ................................................. 4    .          Assembly ............................................................... 29
                                                                                                                                                              .
    LOW SPEED WIPER OPERATION ..................... 4                      .            REMOVAL .......................................................... 29 .
    HI SPEED WIPER OPERATION .......................... 5                  .            INSTALLATION .................................................. 29    .        I
    INTERMITTENT OPERATION ............................. 5                 .          Disassembly and Assembly Front Wiper Motor
    AUTO STOP OPERATION ................................... 6              .          Assembly ............................................................... 30
                                                                                                                                                              .
    WASHER OPERATION ........................................ 6            .            DISASSEMBLY .................................................. 30     .        J
    MIST OPERATION ............................................... 6       .            ASSEMBLY ........................................................ 30  .
    FAIL-SAFE FUNCTION ........................................ 6          .          Washer Nozzle Adjustment ................................... 31         .
    BCM WIPER SWITCH READING FUNCTION ..... 7                                         Washer Tube Layout ............................................. 32     .
                                                                                                                                                                       WW
 CAN Communication System Description ............. 10                     .          Removal and Installation for Front Washer Nozzle 32                     ...
 CAN Communication Unit ..................................... 10           .          Removal and Installation for Front Washer Joint ... 32
    TYPE 1/TYPE 3 ................................................. 10     .          Inspection for Washer Nozzle ................................ 32        .
    TYPE 2 ............................................................... 12
                                                                           .            CHECK VALVE INSPECTION ............................ 32                .        L
 Schematic ............................................................. 14.          Removal and Installation for Front Wiper and
 Wiring Diagram -- WIPER -- ............................... 15             .          Washer Switch ....................................................... 32.
 Terminals and Reference Values for BCM ............ 18                    .          Removal and Installation for Washer Tank ............ 33                .        M
 Terminals and Reference Values for IPDM E/R .... 18                       .            REMOVAL .......................................................... 33 .
 How to Proceed With Trouble Diagnosis ............... 18                  .            INSTALLATION .................................................. 33    .
 Preliminary Inspection ........................................... 19     .          Removal and Installation for Washer Pump .......... 33                  .
    CHECK POWER SUPPLY AND GROUND CIR-                                                  REMOVAL .......................................................... 33 .
    CUIT ................................................................... 19
                                                                           .            INSTALLATION .................................................. 34    .
 CONSULT-II Functions .......................................... 20        .         CIGARETTE LIGHTER ............................................ 35        .
    CONSULT-II OPERATION ................................. 20              .          Wiring Diagram -- CIGAR -- ................................ 35          .
    DATA MONITOR ................................................ 21       .          Removal and Installation ....................................... 36     .
    ACTIVE TEST .................................................... 21    .         POWER SOCKET .................................................... 37     .
 Front Wiper Does Not Operate ............................. 21             .          Wiring Diagram -- P/SCKT -- ............................... 37          .
 Front Wiper Stop Position Is Incorrect ................... 23             .          Removal and Installation for Console Power Socket 38                    ...
 Only Front Wiper Low Does Not Operate ............. 24                    .            REMOVAL .......................................................... 38 .
 Only Front Wiper Hi Does Not Operate ................. 26                 .            INSTALLTION ..................................................... 38  .
 Only Front Wiper Intermittent Does Not Operate ... 27                               HORN ....................................................................... 39
                                                                                                                                                              .
 Front Wiper Intermittent Operation Switch Position



Revision; 2004 April                                                          WW-1                                                          2003 G35 Sedan
 Wiring Diagram -- HORN -- ................................. 39  .
 Removal and Installation ....................................... 40
                                                                 .
  REMOVAL .......................................................... 40
                                                                 .
  INSTALLATION ................................................... 40
                                                                 .




Revision; 2004 April                                                WW-2   2003 G35 Sedan
                                               PRECAUTION

PRECAUTION                                                          PFP:00011
                                                                                                                         A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                           AKS008YI


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                                                                         AKS000AG


When You Read Wiring Diagrams, Refer to the Following:
                                                                                                                         H
q  Refer to GI-14, "How to Read Wiring Diagrams" .
q  Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.
When You Perform Trouble Diagnosis, Refer to the Following:                                                              I
q  Refer to GI-10, "How to Follow Trouble Diagnoses" .
q  Refer to GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident" .
                                                                                                                         J


                                                                                                                         WW


                                                                                                                         L



                                                                                                                         M




Revision; 2004 April                                 WW-3                                         2003 G35 Sedan
                            FRONT WIPER AND WASHER SYSTEM

FRONT WIPER AND WASHER SYSTEM                                                                         PFP:28810

Components Parts and Harness Connector Location                                                             AKS004T5




                                                                                                     SKIA2211E



System Description                                                                                          AKS004T6


q   All front wiper relays (HI, LO) are included in IPDM E/R (intelligent power distribution module engine
    room).
q   Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input termi-
    nals. Terminal combination status is read by BCM (body control module) when switch is turned ON.
q   BCM (body control module) controls front wiper LO, HI, and INT (intermittent) operation.
q   IPDM E/R (intelligent power distribution module engine room) operates wiper motor according to CAN
    communication signals from BCM.
LOW SPEED WIPER OPERATION
Power is supplied at all times
q    from BCM (input 1) terminal 48
q    to combination switch terminal 17
q    to 20A fuse (No. 74, located in IPDM E/R) and
q    through IPDM E/R terminal 42
q    to wiper motor terminal 4.
When the ignition switch is in the ON or START position, and front wiper switch is turned to LO position,
front wiper LO contact in combination switch comes ON, and
Power is supplied
q    through combination switch terminal 10
q    to BCM (output 3) terminal 41.
When BCM determines that wiper switch is in LO position, it uses CAN communications and
Front wiper request signal (LO) is sent
q    from BCM terminals 70 and 71
q    to IPDM E/R terminals 48 and 49.

Revision; 2004 April                               WW-4                                       2003 G35 Sedan
                           FRONT WIPER AND WASHER SYSTEM

When IPDM E/R receives front wiper request signal (LO), it turns ON front wiper LO relay (in IPDM E/R).
Ground is supplied                                                                                               A
q   from wiper motor terminal 3,
q   through IPDM E/R terminal 31 and front wiper HI and LO relays
q   to IPDM E/R terminal 14                                                                                      B
q   through grounds E17 and E43.
With power and ground supplied, the front wiper motor operates at low speed.
                                                                                                                 C
HI SPEED WIPER OPERATION
Power is supplied at all times
q    from BCM (input 2) terminal 49                                                                              D
q    to combination switch terminal 2
q    to 20A fuse (No. 74, located in IPDM E/R) and
q    through IPDM E/R terminal 42                                                                                E
q    to wiper motor terminal 4.
When the ignition switch is the ON or START position, and the front wiper switch is turned to HI position,
front wiper HI contact in combination switch comes ON, and                                                       F
Power is supplied
q    through combination switch terminal 6
q    to BCM (output 1) terminal 47.                                                                              G
When BCM determines that wiper switch is in HI position, it uses CAN communications and
Front wiper request signal (HI) is sent to IPDM E/R
                                                                                                                 H
q    from BCM terminals 70 and 71
q    to IPDM E/R terminals 48 and 49.
When the IPDM E/R receives front wiper request signal (HI), it turns ON front wiper LO relay and front wiper HI  I
relay. (in IPDM E/R),
Ground is supplied
q    to front wiper motor terminal 2
                                                                                                                 J
q    through IPDM E/R terminal 30 and front wiper HI relay and front wiper LO relay
q    to IPDM E/R terminal 14
q    through grounds E17 and E43.                                                                               WW
With power and ground supplied, the front wiper motor operates at high speed.
INTERMITTENT OPERATION
Power is supplied at all times                                                                                   L
q    from BCM (input 2) terminal 49
q    to combination switch terminal 2.
                                                                                                                 M
When the ignition switch is in ON or START position, and the front wiper switch is turned to INT position,
the front wiper INT contact in the combination switch comes ON,
and power is supplied
q    from combination switch terminal 10
q    to BCM (output 3) terminal 41.
When BCM determines that combination switch status is front wiper INT ON, it performs the following opera-
tions.
q    When BCM detects ON/OFF status of intermittent operation dial positions 1, 2, and 3 (in same way as
     wiper INT), it determines wiper dial position status.
q    BCM calculates operation interval from wiper dial position and vehicle speed signal received from combi-
     nation meter through CAN communications.
q    BCM sends front wiper request signal (INT) to IPDM E/R at calculated operation interval.
When IPDM E/R receives front wiper request signal (INT), it turns ON internal front wiper relay. It then sends
auto-stop signal to BCM, and conducts intermittent front wiper motor operation.



Revision; 2004 April                              WW-5                                       2003 G35 Sedan
                           FRONT WIPER AND WASHER SYSTEM

AUTO STOP OPERATION
With wiper switch turned OFF, wiper motor will continue to operate until wiper arms reach windshield base.
When wiper arms are not located at base of windshield with wiper switch OFF, ground is provided
q   from IPDM E/R terminal 31
q   to front wiper motor terminal 3, in order to continue wiper motor operation at low speed.
Ground is also supplied
q   through IPDM E/R terminal 38
q   to front wiper motor terminal 1
q   through front wiper motor terminal 5, and
q   through grounds E17 and E43.
When wiper arms reach base of windshield, front wiper motor terminals 1 and 4 are connected instead of ter-
minals 1 and 5.
Then the IPDM E/R sends auto stop operation signal to BCM with CAN communication line.
When BCM receives auto-stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN commu-
nication line.
IPDM E/R stops wiper motor. Wiper motor will then stop wiper arms at the STOP position.
WASHER OPERATION
When the ignition switch is in ON or START position, power is supplied
q   from BCM (input 1) terminal 48
q   to combination switch terminal 1
q   through 10A fuse (No. 87 located in IPDM E/R)
q   through IPDM E/R terminal 18
q   to washer motor terminal 2.
When front wiper switch is turned to washer position,
Ground is supplied
q   to washer motor terminal 1
q   through combination switch terminal 11
q   through combination switch terminal 12
q   from grounds M30 and M66.
With ground supplied, the front washer motor is operated, and at the same time,
Power is supplied
q   through combination switch terminal 7
q   to BCM (output 2) terminal 40.
When BCM detects that front washer motor has operated for 0.4 seconds or longer, BCM uses CAN commu-
nication and sends wiper request signal to IPDM E/R for low speed operation of wipers.
When BCM detects that washer switch is OFF, low speed operation cycles approximately 3 times and then
stops.
MIST OPERATION
When the wiper switch is turned to the mist position, wiper low speed operation cycles once and then stops.
For additional information about wiper operation under this condition, refer to WW-4, "LOW SPEED WIPER
OPERATION" .
If the switch is held in the mist position, low speed operation continues.
FAIL-SAFE FUNCTION
IPDM E/R includes a fail-safe function to prevent malfunction of electrical components controlled by CAN com-
munications in CAN communications occurs.
When fail-safe status is initiated, IPDM E/R remains in steady unit signals are received.




Revision; 2004 April                              WW-6                                      2003 G35 Sedan
                           FRONT WIPER AND WASHER SYSTEM

BCM WIPER SWITCH READING FUNCTION
BCM reads combination switch (wiper switch) status, and controls front wipers based on the results.               A
BCM is a combination of 5 output terminals (OUTPUT 1 - 5) and 5 input terminals (INPUT 1 - 5). It reads 20
types of switch data and 5 types of diagnosis data.
                                                                                                                  B



                                                                                                                  C


                                                                                                                  D


                                                                                                                  E



                                                                                                                  F


                                                                                                                  G

                                                                                                     SKIA3873E


                                                                                                                  H
OPERATION DESCRIPTION
BCM continuously outputs power voltage from input terminals (INPUT 1 - 5). At this time, output terminals
(OUTPUT 1 - 5) operate transistors in sequence and carry current. If any switch (or switches) becomes ON at
                                                                                                                  I
this time, the input terminal corresponding to that switch detects current flowing, and BCM determines that the
switch is ON.
TABLE OF BCM - COMBINATION SWITCH OPERATIONS                                                                      J
BCM reads operation status of combination switch using combinations shown in table below.

                                                                                                                  WW


                                                                                                                  L



                                                                                                                  M




                                                                                                     SKIA2101E




Revision; 2004 April                               WW-7                                       2003 G35 Sedan
                           FRONT WIPER AND WASHER SYSTEM

SAMPLE OPERATION: (WIPER SWITCH TURNED TO LO POSITION)
q   When wiper switch is turned to LO position, front wiper LO contact inside combination switch becomes
    ON. At this time, OUTPUT 3 transistor operates and BCM detects flow of current at INPUT 1.
q   When OUTPUT 3 transistor is ON and BCM detects current flowing at INPUT 1, BCM determines that
    wiper switch is at LO. BCM uses CAN communication and sends front wiper signals to IPDM E/R.
q   When OUTPUT 3 transistor operates again and BCM again detects current flowing at INPUT 1, it confirms
    that front wiper LO operation is continuing.




                                                                                                    SKIA4468E

    NOTE:
    Each OUTPUT terminal transistor operates at 10 ms intervals. Therefore, a delay occurs between the
    switch becoming ON and operation of the electric load. However, this delay is so small it is undetectable.
OPERATING MODES
The following operation modes exist for combination switch reading function.
Normal Status
When BCM is not in sleep status, OUTPUT terminals (1 - 5) each turn ON-OFF every 10 ms.
Sleep Status
When BCM is in sleep status, output from OUTPUT 1 and 2 transistors stops, with BCM entering a power-sav-
ing mode. OUTPUT (3 - 5) turns ON-OFF every 60 ms, and only input from lighting switch system is accepted.




                                                                                                       SKIA3097E



Revision; 2004 April                              WW-8                                       2003 G35 Sedan
                               FRONT WIPER AND WASHER SYSTEM

INTERMITTENT OPERATION
Wiper intermittent operation delay interval is determined from a combination of 3 switches (intermittent opera-                       A
tion dial position 1, intermittent operation dial position 2, and intermittent operation dial position 3) and vehicle
speed signal.
During each intermittent operation delay interval, BCM sends front wiper request signal to IPDM E/R.                                  B
Wiper Dial Position Setting
                                                                                    Combination switch
                                  Intermittent operation                                                                              C
         Wiper dial position                               Intermittent operation   Intermittent operation   Intermittent operation
                                         interval
                                                               dial position 1          dial position 2          dial position 3
 Wiper dial position 1                                              ON                       ON                       ON
                                          Small                                                                                       D
 Wiper dial position 2                                              ON                       ON                      OFF
 Wiper dial position 3                                              ON                      OFF                      OFF
 Wiper dial position 4                                             OFF                      OFF                      OFF              E
 Wiper dial position 5                                             OFF                      OFF                       ON
 Wiper dial position 6                                             OFF                       ON                       ON
                                          Large                                                                                       F
 Wiper dial position 7                                             OFF                       ON                      OFF

Example: For wiper dial position 1...
Using combination switch reading function, BCM detects ON/OFF status of intermittent operation dial posi-                             G
tions 1, 2, and 3.
When combination switch status is as listed below, BCM determines that it is wiper dial position 1.
q    Intermittent operation dial position 1: ON (input 3 and output 1 are conducting.)                                                H
q    Intermittent operation dial position 2: ON (input 5 and output 1 are conducting.)
q    Intermittent operation dial position 3: ON (input 4 and output 2 are conducting.)
BCM determines front wiper intermittent operation delay interval from wiper dial position 1 and vehicle speed,                        I
and sends wiper request signal (INT) to IPDM E/R.

                                                                                                                                      J


                                                                                                                                      WW


                                                                                                                                      L



                                                                                                                                      M




Revision; 2004 April                                       WW-9                                                2003 G35 Sedan
                                     FRONT WIPER AND WASHER SYSTEM

CAN Communication System Description                                                                                            AKS005L7


CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Unit                                                                                                          AKS0093Q


 Body type                                                                          Sedan
 Axle                                                                                2WD
 Engine                                                                            VQ35DE
                                                                       A/T
 Transmission                                                                                                      M/T
                                              Up to serial 329287*            From serial 329288*
 Brake control                                                                       VDC
                                                       CAN communication unit
 ECM                                                                    



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