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WIPER, WASHER & HORN
K ELECTRICAL
A
SECTION
WIPER, WASHER & HORN
WW B
C
D
E
CONTENTS
PRECAUTION ........................................................... 3 . Cannot Be Adjusted ............................................... 27 . F
Precautions for Supplemental Restraint System Wipers Do Not Wipe When Front Washer Operates 27 ...
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Removal and Installation for Front Wiper Arms,
SIONER" ................................................................. 3
. Adjustment for Wiper Arms Stop Location ............. 28 . G
Precautions for Battery Service ............................... 3 . REMOVAL .......................................................... 28 .
Wiring Diagrams and Trouble Diagnosis ................. 3 . INSTALLATION .................................................. 28 .
FRONT WIPER AND WASHER SYSTEM ................. 4 . ADJUSTMENT ................................................... 28 .
H
Components Parts and Harness Connector Loca- Removal and Installation of Front Wiper Motor
tion .......................................................................... 4
. Assembly ............................................................... 28
.
System Description ................................................. 4 . REMOVAL .......................................................... 28 .
LOW SPEED WIPER OPERATION ..................... 5 . INSTALLATION .................................................. 29 . I
HI SPEED WIPER OPERATION .......................... 5 . Disassembly and Assembly Front Wiper Motor
INTERMITTENT OPERATION ............................. 5 . Assembly. .............................................................. 29
.
AUTO STOP OPERATION ................................... 6 . DISASSEMBLY .................................................. 29 . J
WASHER OPERATION ........................................ 6 . ASSEMBLY ........................................................ 29 .
MIST OPERATION ............................................... 6 . Washer Nozzle Adjustment ................................... 30 .
FAIL-SAFE FUNCTION ........................................ 6 . Washer Tube Layout ............................................. 31 .
WW
BCM WIPER SWITCH READING FUNCTION ..... 7 Removal and Installation for Front Washer Nozzle 31 ...
CAN Communication System Description ............... 9 . Removal and Installation for Front Washer Joint ... 31
CAN Communication Unit ....................................... 9 . Inspection for Washer Nozzle ................................ 31 .
TYPE 1 ............................................................... 10
. CHECK VALVE ................................................... 31 . L
TYPE 2 ................................................................11
. Removal and Installation for Front Wiper and
Schematic ............................................................. 13. Washer Switch ....................................................... 31.
Wiring Diagram -- WIPER -- ............................... 14 . Removal and Installation for Washer Tank ............ 32 . M
Terminals and Reference Values for BCM ............ 17 . REMOVAL .......................................................... 32 .
Terminals and Reference Values for IPDM E/R .... 17 . INSTALLATION .................................................. 32 .
How to Proceed With Trouble Diagnosis ............... 17 . Removal and Installation for Washer Pump .......... 33 .
Preliminary Inspection ........................................... 18 . REMOVAL .......................................................... 33 .
CHECK POWER SUPPLY AND GROUND CIR- INSTALLATION .................................................. 33 .
CUIT ................................................................... 18
. CIGARETTE LIGHTER ............................................ 34 .
CONSULT-II Functions .......................................... 19 . Wiring Diagram -- CIGAR -- ................................ 34 .
CONSULT-II OPERATION ................................. 19 . Removal and Installation for Cigarette Lighter ...... 35 .
DATA MONITOR ................................................ 20 . REMOVAL .......................................................... 35 .
ACTIVE TEST .................................................... 20 . INSTALLATION .................................................. 35 .
Front Wiper Does Not Operate ............................. 20 . POWER SOCKET .................................................... 36 .
Front Wiper Stop Position Is Incorrect ................... 22 . Wiring Diagram -- P/SCKT -- ............................... 36 .
Only Front Wiper Low Does Not Operate ............. 24 . Removal and Installation for Instrument Power
Only Front Wiper Hi Does Not Operate ................. 25 . Socket .................................................................... 37
.
Only Front Wiper Intermittent Does Not Operate ... 27 REMOVAL .......................................................... 37 .
Front Wiper Intermittent Operation Switch Position
Revision; 2004 April WW-1 2003 G35 Coupe
INSTALLATION ................................................... 37 . HORN .......................................................................38
.
Removal and Installation for Console Power Socket Wiring Diagram -- HORN -- .................................38 .
(A/T) ....................................................................... 37
. Removal and Installation ........................................39 .
REMOVAL .......................................................... 37 . REMOVAL ...........................................................39 .
INSTALLATION ................................................... 37 . INSTALLATION ...................................................39 .
Revision; 2004 April WW-2 2003 G35 Coupe
PRECAUTION
PRECAUTION PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AKS004DF
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
Precautions for Battery Service AKS004DG
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the H
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
I
Wiring Diagrams and Trouble Diagnosis AKS003DQ
When You Read Wiring Diagrams, Refer to the Following:
q Refer to GI-15, "How to Read Wiring Diagrams" . J
q Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.
When You Perform Trouble Diagnosis, Refer to the Following:
q Refer to GI-11, "How to Follow Trouble Diagnoses" . WW
q Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" .
L
M
Revision; 2004 April WW-3 2003 G35 Coupe
FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEM PFP:28810
Components Parts and Harness Connector Location AKS003DR
SKIA4023E
System Description AKS004BZ
q All front wiper relays (HI, LO) are included in IPDM E/R.
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 when switch is turned ON.
q BCM controls front wiper LO, HI, and INT (intermittent) operation.
q IPDM E/R operates wiper motor according to CAN communication signals from BCM.
Power is supplied at all times
q through 50 A fusible link (letter F, located in fusible link box.)
q to BCM (body control module) terminal 7,
q through 20 A fuse [No. 74 located in IPDM E/R (intelligent power distribution module engine room)]
q to front wiper relay [built in IPDM E/R (intelligent power distribution module engine room)]
q through 15 A fuse [No. 73 located in IPDM E/R (intelligent power distribution module engine room)]
q to CPU (central processing unit) in the IPDM E/R (intelligent power distribution module engine room).
When the ignition switch ON or START position, power is supplied
q through 10 A fuse [No. 1 located in fuse block (J/B)]
q to BCM (body control module) terminal 35 and,
q through 10 A fuse [No. 80, located in IPDM E/R (intelligent power distribution module engine room)]
q to front wiper relay [built in IPDM E/R (intelligent power distribution module engine room)] and
q to front wiper high relay [built in IPDM E/R (intelligent power distribution module engine room)]
q through 10 A fuse [No. 87 located in IPDM E/R (intelligent power distribution module engine room)]
q through IPDM E/R (intelligent power distribution module engine room) terminal 18
q to front washer motor terminal 2.
Revision; 2004 April WW-4 2003 G35 Coupe
FRONT WIPER AND WASHER SYSTEM
Ground is supplied
q to BCM (body control module) terminal 8 A
q through grounds E17 and E43
q to IPDM E/R (intelligent power distribution module engine room) terminals 14 and 45
B
q through grounds E17 and E43
q to combination switch (wiper switch) terminal 12
q through grounds M30 and M66. C
LOW SPEED WIPER OPERATION
When front wiper switch is in LO position, BCM detects the LO position of the front wiper switch by BCM wiper
switch reading function. D
BCM sent front wiper request signal (LO) to IPDM E/R by CAN communication line
q from BCM terminals 70 and 71
q to IPDM E/R terminals 48 and 49. E
When IPDM E/R receives front wiper request signal (LO), it turns ON front wiper relay (built in IPDM E/R),
power is supplied
q to front wiper motor terminal 3 F
q through IPDM E/R terminal 31 and front wiper relay and front wiper high relay.
Ground is supplied
q to front wiper motor terminal 4 G
q through grounds E17and E43.
with power and ground is supplied, the front wiper motor operates at low speed.
H
HI SPEED WIPER OPERATION
When front wiper switch is in HI position, BCM detects the HI position of the front wiper switch by BCM wiper
switch reading function. I
BCM sent front wiper request signal (HI) to IPDM E/R by CAN communication line
q from BCM terminals 70 and 71
q to IPDM E/R terminals 48 and 49. J
When IPDM E/R receives front wiper request signal (HI), it turns ON front wiper relay (built in IPDM E/R),
power is supplied
q to front wiper motor terminal 2 WW
q through IPDM E/R terminal 30 and front wiper relay and front wiper high relay.
Ground is supplied
q to front wiper motor terminal 4 L
q through grounds E17and E43.
with power and ground is supplied, the front wiper motor operates at high speed.
M
INTERMITTENT OPERATION
The front wiper motor operates the wiper arms one time at low speed at a set interval of wiper volume switch
and vehicle speeds, this feature is controlled by the BCM and IPDM E/R.
When front wiper switch is in INT position BCM detects INT position of the front wiper switch by BCM wiper
switch reading function. BCM performs the following operations
q When BCM detects ON/OFF status of intermittent operation dial positions 1, 2, and 3 it determines wiper
dial position status. Refer to WW-9, "Wiper Dial Position Setting" .
q BCM calculates operation interval from wiper dial position and vehicle speed signal received from combi-
nation meter with CAN communications.
q BCM sends front wiper request signal (INT) to IPDM E/R at calculated operation interval.
q 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.
With power is and ground supplied circuit routed, front wiper operates at intermittent.
Revision; 2004 April WW-5 2003 G35 Coupe
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, power 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.
When wiper arms reach base of windshield, front wiper motor terminals 1 and 4 are connected,
and ground is supplied
q to IPDM E/R terminal 38
q through front wiper motor terminal 1
q through front wiper motor terminal 4
q through ground E17 and E43.
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 wiper switch is in front wiper washer position, BCM detects front wiper washer signal by BCM wiper
switch reading function (Refer to WW-7, "BCM WIPER SWITCH READING FUNCTION" ), combination
switch (wiper switch) ground is supplied
q to front washer motor terminal 1
q through combination switch (wiper switch) terminal 11
q to combination switch (wiper switch) terminal 12
q through grounds M30 and M66
With ground is supplied, front washer motor is operated.
When BCM detects that front washer motor has operated for 0.4 seconds or linger, BCM operates front wiper
motor for low speed.
When BCM detects washer switch is OFF, low speed operation cycles approximately 3 times and 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-5, "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 Coupe
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 Coupe
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 Coupe
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.
CAN Communication System Description J
AKS005PS
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
WW
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.
L
CAN Communication Unit AKS005PT
Body type Coupe
Axle 2WD M
Engine VQ35DE
Transmission M/T A/T
Brake control VDC
CAN communication unit
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