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WIPER, WASHER & HORN
K ELECTRICAL
A
B
SECTION
WIPER, WASHER & HORN C
D
E
CONTENTS
PRECAUTION ........................................................... 3 . Only Front Wiper Intermittent Does Not Operate ... 30 F
Precautions for Supplemental Restraint System Front Wiper Intermittent Operation Switch Position
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Cannot Be Adjusted ............................................... 31 .
SIONER" ................................................................. 3
. Wipers Do Not Wipe When Front Washer Operates 31 ... G
Precautions for Battery Service ............................... 3 . Removal and Installation for Front Wiper Arms,
Wiring Diagrams and Trouble Diagnosis ................. 3 . Adjustment for Wiper Arms Stop Location ............. 31 .
FRONT WIPER AND WASHER SYSTEM ................. 4 . REMOVAL .......................................................... 31 .
H
Components Parts and Harness Connector Loca- INSTALLATION .................................................. 31 .
tion .......................................................................... 4
. ADJUSTMENT ................................................... 32 .
System Description ................................................. 4 . Removal and Installation of Front Wiper Motor and
LOW SPEED WIPER OPERATION ..................... 5 . Linkage .................................................................. 32
. I
HI SPEED WIPER OPERATION .......................... 5 . REMOVAL .......................................................... 32 .
INTERMITTENT OPERATION ............................. 5 . INSTALLATION .................................................. 32 .
AUTO STOP OPERATION ................................... 6 . Disassembly and Assembly Front Wiper Motor and J
WASHER OPERATION ........................................ 6 . Linkage. ................................................................. 33
.
MIST OPERATION ............................................... 6 . DISASSEMBLY .................................................. 33 .
FAIL-SAFE FUNCTION ........................................ 6 . ASSEMBLY ........................................................ 33 .
WW
BCM WIPER SWITCH READING FUNCTION ..... 7 Washer Nozzle Adjustment ................................... 33 .
CAN Communication System Description ............... 9 . Washer Tube Layout ............................................. 35 .
CAN Communication Unit ....................................... 9 . Removal and Installation for Front Washer Nozzle 35 ...
TYPE 1 ............................................................... 10
. Removal and Installation for Front Washer tube L
TYPE 2/TYPE3 .................................................. 12 . Joint ....................................................................... 35
.
TYPE 4/TYPE5 .................................................. 13 . REMOVAL .......................................................... 35 .
TYPE 6/TYPE7 .................................................. 15 . INSTALLATION .................................................. 35 . M
Schematic ............................................................. 17. Inspection for Washer Nozzle ................................ 35 .
Wiring Diagram -- WIPER -- ............................... 18 . CHECK VALVE ................................................... 35 .
Terminals and Reference Values for BCM ............ 21 . Removal and Installation for Front Wiper and
Terminals and Reference Values for IPDM E/R .... 21 . Washer Switch ....................................................... 36 .
How to Proceed With Trouble Diagnosis ............... 22 . REMOVAL .......................................................... 36 .
Preliminary Inspection ........................................... 22 . INSTALLATION .................................................. 36 .
INSPECTION FOR POWER SUPPLY AND Removal and Installation for Washer Tank ............ 36 .
GROUND CIRCUIT ............................................ 22 . REMOVAL .......................................................... 36 .
CONSULT-II Functions .......................................... 23 . INSTALLATION .................................................. 37 .
CONSULT-II OPERATION ................................. 23 . Removal and Installation for Washer Pump .......... 37 .
DATA MONITOR ................................................ 24 . REMOVAL .......................................................... 37 .
ACTIVE TEST .................................................... 25 . INSTALLATION .................................................. 37 .
Front Wiper Does Not Operate ............................. 25 . REAR WIPER AND WASHER SYSTEM ................. 38 .
Front Wiper Stop Position Is Incorrect ................... 27 . Components Parts and Harness Connector Loca-
Only Front Wiper Low Does Not Operate ............. 28 . tion ......................................................................... 38
.
Only Front Wiper Hi Does Not Operate ................. 29 . System Description ................................................ 38 .
WW-1
REAR WIPER OPERATION ............................... 39 . Adjustment for Wiper Arms Stop Location .............49 .
INTERMITTENT OPERATION ........................... 39 . Removal and Installation of Rear Wiper Motor ......50 .
AUTO STOP OPERATION ................................. 39 . REMOVAL ...........................................................50 .
WASHER OPERATION ...................................... 39 . INSTALLATION ...................................................51 .
BCM WIPER SWITCH READING FUNCTION ... 39 Washer Nozzle Adjustment ....................................51 .
Wiring Diagram -- WIP/ R -- ................................ 40. Washer Tube Layout ..............................................52 .
Terminals and Reference Values for BCM ............. 42 . Check Valve ...........................................................52
.
How to Proceed With Trouble Diagnosis ............... 42 . Removal and Installation for Rear Wiper and
Preliminary Inspection ........................................... 42
. Washer Switch .......................................................52 .
INSPECTION FOR POWER SUPPLY AND Removal and Installation for Washer Tank .............52 .
GROUND CIRCUIT ............................................ 42
. Removal and Installation for Washer Pump ...........52 .
CONSULT-II Functions .......................................... 43
. POWER SOCKET ....................................................53 .
CONSULT-II OPERATION .................................. 43 . Wiring Diagram -- P/SCKT -- ...............................53 .
DATA MONITOR ................................................. 44
. Removal and Installation ........................................54 .
ACTIVE TEST .................................................... 45
. REMOVAL ...........................................................54 .
Rear Wiper Does Not Operate .............................. 45 . INSTALLATION ...................................................54 .
Rear Wiper Stop Position Is Incorrect .................... 47 . HORN .......................................................................55
.
Only Rear Wiper Does Not Operate ...................... 48 . Wiring Diagram -- HORN -- .................................55 .
Only Rear Wiper Intermittent Does Not Operate ... 49 Removal and Installation ........................................56 .
Wiper Does Not Wipe When Rear Washer Operates 49 ... REMOVAL ...........................................................56 .
Removal and Installation for Rear Wiper Arm, INSTALLATION ...................................................56 .
WW-2
PRECAUTION
PRECAUTION PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AKS003NK
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 harness connec-
tors.
G
Precautions for Battery Service AKS003RE
This vehicle is equipped with the automatic window adjusting function. When a door is opened, the window
automatically lowers slightly to avoid contact between the window and the side roof panel. After the door is H
closed, the window will automatically raise slightly.
On vehicles equipped with the automatic window adjusting function, lower both the driver and front passenger I
side windows before disconnecting the battery cables. This will prevent interference between the side window
and the roof panel when either door is opened/closed.
J
CAUTION:
After the battery cables are disconnected, do not open/close the driver and/or front passenger door
with the window in the full up position. The automatic window adjusting function will not work and the
side roof panel may be damaged. WW
Wiring Diagrams and Trouble Diagnosis AKS000Y5
When You Read Wiring Diagrams, Refer to the Following: L
q Refer to GI-15, "How to Read Wiring Diagrams" .
q Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.
When You Perform Trouble Diagnosis, Refer to the Following: M
q Refer to GI-11, "How to Follow Trouble Diagnoses" .
q Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" .
WW-3
FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEM PFP:28810
Components Parts and Harness Connector Location AKS000Y6
SKIA3235E
System Description AKS000Y7
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 40 A fusible link (letter F, located in fusible link box.)
q to BCM 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 IPDM E/R (CPU).
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 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)] and
q through 10 A fuse [No.87 located in IPDM E/R (intelligent power distribution module engine room)]
q through IPDM E/R terminal 18
q to front washer motor terminal 2.
Ground is supplied
WW-4
FRONT WIPER AND WASHER SYSTEM
q to BCM terminal 8
q through body grounds E17, E43 and F152, A
q to IPDM E/R terminals 14 and 45
q through body grounds E17, E43 and F152.
B
q to combination switch (wiper switch) terminal 12
q through body grounds M30 and M66.
LOW SPEED WIPER OPERATION C
When IPDM E/R wiper switch is in LO position, BCM detect low speed wiper ON signal by BCM wiper switch
reading function.
BCM sent front wiper request signal (LO) with CAN communication line D
q from BCM terminals 70 and 71
q to IPDM E/R terminals 48 and 49.
When IPDM E/R receives front wiper request signal (LO), it turns ON front wiper relay (built in IPDM E/R), E
power is supplied
q to front wiper motor terminal 3
q through IPDM E/R terminal 31 and front wiper relay and front wiper HI relay. F
Ground is supplied
q to front wiper motor terminal 4
q through body grounds E17, E43 and F152. G
with power and ground is supplied, the front wiper motor operates at low speed.
HI SPEED WIPER OPERATION H
When IPDM E/R wiper switch is in HI position, BCM detect high speed wiper ON signal by BCM wiper switch
reading function.
BCM sent front wiper request signal (HI) with CAN communication line I
q from BCM terminals 70 and 71
q to IPDM E/R terminals 48 and 49.
When IPDM E/R receives front wiper request signal (HI), it turns ON front wiper relay (built in IPDM E/R), J
power is supplied
q to front wiper motor terminal 2
q through IPDM E/R terminal 30 and front wiper relay and front wiper HI relay. WW
Ground is supplied
q to front wiper motor terminal 4
q through body grounds E17, E43 and F152. L
with power and ground is supplied, the front wiper motor operates at high speed.
INTERMITTENT OPERATION M
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 HI position BCM detect high speed wiper ON signal 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 operation.
With power and ground is supplied, rear wiper operates at intermittent.
WW-5
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 terminal 31 of the IPDM E/R
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 terminal 38 of IPDM E/R
q through front wiper motor terminal 1 and 4
q through body ground E17, E43 and F152.
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 detect 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 body 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, PODIUM E/R remains in steady unit signals are received.
WW-6
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
SKIA3094E
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
SKIA3095E
WW-7
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.
SKIA3206E
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
WW-8
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 2 are conducting.) H
q Intermittent operation dial position 2: ON (input 5 and output 2 are conducting.)
q Intermittent operation dial position 3: ON (input 4 and output 1 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
AKS000Y8
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 AKS003M9
Body type Coupe
Axle 2WD M
Engine VQ35DE
Transmission A/T M/T
Brake control TCS ABS TCS VDC
Not Not Not Not
Applica- Applica- Applica-
Low tire pressure warning system Applica- Applica- Applica- Applica-
ble ble ble
ble ble ble ble
CAN communication unit
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