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WIPER, WASHER & HORN
K ELECTRICAL
A
SECTION
WIPER, WASHER & HORN
WW B
C
D
E
CONTENTS
APPLICATION NOTICE ............................................. 4 . ACTIVE TEST .................................................... 35 . F
How to Check Vehicle Type .................................... 4 . CONSULT-II Function (IPDM E/R) ........................ 36 .
PRECAUTIONS ......................................................... 5 . CONSULT-II BASIC OPERATION ...................... 36 .
Precautions for Supplemental Restraint System DATA MONITOR ................................................ 37 . G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- ACTIVE TEST .................................................... 37 .
SIONER" ................................................................. 5
. Front Wiper Does Not Operate .............................. 38 .
PrecautionsforProcedureswithoutCowlTopCover 5 ..... Front Wiper Does Not Return to Stop Position ...... 40 .
H
Wiper and Washer System ...................................... 5 . Front Wiper Low Speed Operation Does Not Oper-
FRONT WIPER AND WASHER SYSTEM ................. 6 . ate .......................................................................... 41
.
Components Parts and Harness Connector Loca- Front Wiper High Speed Operation Does Not Oper-
tion .......................................................................... 6
. ate .......................................................................... 42
. I
System Description ................................................. 6 . Front Wiper INT Does Not Operate ....................... 43 .
LOW SPEED WIPER OPERATION ..................... 7 . Front Wiper Interval Time Is Not Controlled by Vehi-
HIGH SPEED WIPER OPERATION .................... 7 . cle Speed ............................................................... 43
. J
INTERMITTENT OPERATION ............................. 7 . After Front Wipers Operate for 10 Seconds, They
AUTO STOP OPERATION ................................... 8 . Stop for 20 Seconds .............................................. 44 .
MIST OPERATION ............................................... 8 . Front Wipers Do Not Stop ...................................... 45 .
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WASHER OPERATION ........................................ 8 . Removal and Installation of Front Wiper Arm ........ 45 .
FAIL-SAFE FUNCTION ........................................ 8 . REMOVAL .......................................................... 45 .
COMBINATIONSWITCHREADING FUNCTION 8 ..... INSTALLATION .................................................. 45 .
CAN Communication ............................................. 13 . Adjustment of Front Wiper Arm Stop Position ....... 45 . L
SYSTEM DESCRIPTION ................................... 13 . Removal and Installation of Front Wiper Motor and
CAN Communication Unit ..................................... 13 . Link ........................................................................ 46
.
TYPE 1/TYPE 2 ................................................. 14 . REMOVAL .......................................................... 46 . M
TYPE 3/TYPE 4/TYPE 5/TYPE 6 ....................... 17 . INSTALLATION .................................................. 46 .
TYPE 7/TYPE 8 ................................................. 19 . AdjustmentofSpray Positions of FrontWasher Noz-
TYPE 9/TYPE 10/TYPE 11/TYPE 12 ................. 22 . zle (Hatchback) ...................................................... 47 .
TYPE 13/TYPE 14 ............................................. 24 . Washer Hose Routing ........................................... 48 .
Schematic ............................................................. 26. Removal and Installation of Front Washer Nozzle... 48
Wiring Diagram -- WIPER -- ............................... 27 . REMOVAL .......................................................... 48 .
Terminals and Reference Values for BCM ............ 30 . CHECK VALVE INSPECTION ............................ 48 .
Terminals and Reference Values for IPDM E/R .... 31 . INSTALLATION .................................................. 48 .
How to Proceed With Trouble Diagnosis ............... 31 . RemovalandInstallationofFrontWiperandWasher
Preliminary Inspection ........................................... 31 . Switch .................................................................... 49
.
CHECK POWER SUPPLY AND GROUND CIR- RemovalandInstallationofFrontWiperandWasher
CUIT ................................................................... 31
. Tank ....................................................................... 49
.
CONSULT-II Function (BCM) ................................ 33 . REMOVAL .......................................................... 49 .
CONSULT-II OPERATION ................................. 33 . INSTALLATION .................................................. 49 .
WORK SUPPORT .............................................. 34 . RemovalandInstallationofFrontWiperandWasher
DATA MONITOR ................................................ 34 .
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Pump ..................................................................... 49
. INSTALLATION ...................................................80 .
REMOVAL .......................................................... 49 . RemovalandInstallationofFrontWiperandWasher
INSTALLATION ................................................... 49 . Switch ....................................................................81
.
FRONT WIPER AND WASHER SYSTEM (WITH RemovalandInstallationofFrontWiperandWasher
RAIN SENSOR) ........................................................ 51 . Tank .......................................................................81
.
Components Parts and Harness Connector Loca- REMOVAL ...........................................................81 .
tion ......................................................................... 51
. INSTALLATION ...................................................81 .
System Description ................................................ 51 . RemovalandInstallationofFrontWiperandWasher
LOW SPEED WIPER OPERATION .................... 52 . Pump ......................................................................82
.
HIGH SPEED WIPER OPERATION ................... 52 . REMOVAL ...........................................................82 .
AUTO WIPER OPERATION ............................... 52 . INSTALLATION ...................................................82 .
AUTO STOP OPERATION ................................. 52 . Removal and Installation of Rain Sensor ...............82 .
MIST OPERATION ............................................. 53 . REMOVAL ...........................................................82 .
WASHER OPERATION ...................................... 53 . INSTALLATION OF RAIN SENSOR ...................82 .
FAIL-SAFE FUNCTION ...................................... 53 . INSTALLATION OF LIGHT AND RAIN SENSOR
COMBINATIONSWITCHREADING FUNCTION 53 ... HOUSING ...........................................................82 .
CAN Communication ............................................. 54 . REAR WIPER AND WASHER SYSTEM ..................83 .
SYSTEM DESCRIPTION ................................... 54 . Components Parts and Harness Connector Loca-
CAN Communication Unit ...................................... 54 . tion .........................................................................83
.
TYPE 1/TYPE 2 .................................................. 55 . System Description ................................................83 .
TYPE 3/TYPE 4/TYPE 5/TYPE 6 ....................... 58 . WIPER OPERATION ..........................................83 .
TYPE 7/TYPE 8 .................................................. 60 . INTERMITTENT OPERATION ............................84 .
TYPE 9/TYPE 10/TYPE 11/TYPE 12 ................. 63 . WASHER OPERATION ......................................84 .
TYPE 13/TYPE 14 .............................................. 65 . REAR WIPER REVERSE RANGE OPERATION
Schematic .............................................................. 67. (IF AUTO WIPER IS EQUIPPED) .......................84 .
Wiring Diagram -- A/WIP -- ................................. 68 . COMBINATIONSWITCHREADINGFUNCTION ...84
Terminals and Reference Values for BCM ............. 71 . CAN Communication .............................................85 .
Terminals and Reference Values for IPDM E/R ..... 71 . SYSTEM DESCRIPTION ....................................85 .
How to Proceed With Trouble Diagnosis ............... 72 . CAN Communication Unit ......................................85 .
Preliminary Inspection ........................................... 72 . TYPE 1/TYPE 2 ..................................................86 .
CHECK POWER SUPPLY AND GROUND CIR- TYPE 3/TYPE 4/TYPE 5/TYPE 6 .......................89 .
CUIT ................................................................... 72
. TYPE 7/TYPE 8 ..................................................91 .
CONSULT-II Function (BCM) ................................. 74 . TYPE 9/TYPE 10/TYPE 11/TYPE 12 ..................94 .
CONSULT-II Function (IPDM E/R) ......................... 74 . TYPE 13/TYPE 14 ..............................................96 .
Front Wiper Does Not Operate .............................. 74 . Wiring Diagram -- WIP/R -- ..................................98 .
Front Wiper Does Not Return to Stop Position ...... 74 . WITHOUT RAIN SENSOR .................................98 .
Front Wiper Low Speed Operation Does Not Oper- Schematic ............................................................ 100 .
ate. ......................................................................... 74
. WITH RAIN SENSOR ....................................... 100 .
Front Wiper High Speed Operation Does Not Oper- Wiring Diagram -- WIP/R -- ................................ 101 .
ate .......................................................................... 74
. WITH RAIN SENSOR ....................................... 101 .
Front Wiper INT Does Not Operate ....................... 74 . Terminals and Reference Values for BCM ........... 104 .
Auto Wiper Dose Not Operate ............................... 75 . Terminals and Reference Values for IPDM E/R ... 104 .
After Front Wipers Operate for 10 Seconds, They How to Proceed With Trouble Diagnosis ............. 105 .
Stop for 20 Seconds .............................................. 76 . Preliminary Check ................................................ 105 .
Front Wipers Do Not Stop ...................................... 76 . CHECK POWER SUPPLY AND GROUND CIR-
Removal and Installation of Front Wiper Arm ........ 76 . CUIT .................................................................. 105
.
REMOVAL .......................................................... 76 . CONSULT-II Function (BCM) ............................... 106 .
INSTALLATION ................................................... 77 . Rear Wiper Does Not Operate ............................. 106 .
Adjustment of Front Wiper Arm Stop Position ....... 77 . Rear Wiper Stop Position Is Not Restored ........... 107 .
Removal and Installation of Front Wiper Motor and Only Rear Wiper Reverse Range Operation Dose
Link ........................................................................ 78
. Not Operate ......................................................... 108 .
REMOVAL .......................................................... 78 . Only Rear Wiper INT Does Not Operate .............. 108 .
INSTALLATION ................................................... 78 . Removal and Installation of Rear Wiper Arm ....... 109 .
Adjustmentof SprayPositionsofFrontWasher Noz- REMOVAL ......................................................... 109 .
zle (Hatchback) ...................................................... 79 . INSTALLATION ................................................. 109 .
Washer Hose Routing ............................................ 80 . Adjusting Rear Wiper Arm Stop Position ............. 109 .
Removal and Installation of Front Washer Nozzle... 80 Removal and Installation of Rear Wiper Motor .... 109 .
REMOVAL .......................................................... 80 . REMOVAL ......................................................... 110 .
CHECK VALVE INSPECTION ............................ 80 . INSTALLATION ................................................. 110 .
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Rear Wiper Blade .................................................110 . Wiring Diagram --HLC-- .................................... 126 .
REMOVAL AND INSTALLATION ......................110 . Terminals and Reference Values for BCM ........... 128 . A
Adjusting Rear Washer Nozzle Spray Position ....110 . Terminals and Reference Values for IPDM E/R ... 128 .
Rear Washer Hose Circuit .................................... 111 . Preliminary Inspection ......................................... 129 .
Removal and Installation of Rear Washer Nozzle.. 111 CHECK POWER SUPPLY AND GROUND CIR- B
REMOVAL ......................................................... 111 . CUIT ................................................................. 129
.
CHECK VALVE INSPECTION ........................... 111 . CONSULT-II Function (BCM) .............................. 130 .
INSTALLATION ................................................. 111 . CONSULT-II Function (IPDM E/R) ...................... 130 .
Rear Wiper and Washer Switch Circuit Inspection 111 .. Headlamp Washer Does Not Operate ................. 130 . C
Removal andInstallation of Rear Wiper and Washer Removal and Installation for Washer Nozzle ....... 133 .
Switch ................................................................... 111
. REMOVAL ........................................................ 133 .
Removal andInstallation of Rear Wiper and Washer INSTALLATION ................................................ 133 . D
Tank ...................................................................... 111
. Removal and Installation for Washer Tank .......... 133 .
Removal andInstallation of Rear Wiper and Washer Removal and Installation for Washer Pump ........ 133 .
Pump .................................................................... 111
. Washer Tube Layout ........................................... 133 . E
HEADLAMP WASHER ...........................................112 . HORN ..................................................................... 134
.
System Description ..............................................112 . Wiring Diagram --HORN-- ................................. 134 .
HEADLAMP WASHER OPERATION ................112 . Removal and Installation ..................................... 135 .
CAN Communication ............................................113 . REMOVAL ........................................................ 135 . F
CAN Communication Unit ....................................113 . INSTALLATION ................................................ 135 .
TYPE 1/TYPE 2 ................................................114 . POWER SOCKET .................................................. 136 .
TYPE 3/TYPE 4/TYPE 5/TYPE 6 ......................117 . Wiring Diagram --CIGAR-- ................................ 136 . G
TYPE 7/TYPE 8 ................................................119 . Removal and Installation ..................................... 137 .
TYPE 9/TYPE 10/TYPE 11/TYPE 12 ............... 122 . REMOVAL ........................................................ 137 .
TYPE 13/TYPE 14 ........................................... 124 . INSTALLATION ................................................ 137 . H
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APPLICATION NOTICE
APPLICATION NOTICE PFP:00000
How to Check Vehicle Type EKS00Q9M
Confirm K9K engine type with Model written on identification plate (refer to GI-44, "IDENTIFICATION INFOR-
MATION" ), then refer to service information in WW section.
Vehicle type Engine type
xTKxxxxK12Vxx Euro3 48kW
xTKxxxxK12Yxx Euro3 60kW
xTKxxxxK12Txx Euro4 50kW
xTKxxxxK12Uxx Euro4 63kW
WW-4
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS00860
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual. C
WARNING:
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. D
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. E
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. F
Precautions for Procedures without Cowl Top Cover EKS00Q9K
When performing the procedure after removing cowl top cover, cover G
the lower end of windshield with urethane, etc.
H
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PIIB3706J J
Wiper and Washer System EKS007AW
q If snow or other obstacle stops wipers from moving while front wipers are operating, wipers will stop mov- WW
ing to protect motor. In this case, turn the switch OFF and remove obstacle. Wait at least 20 seconds
before turning the switch ON again to start front wipers.
q If rear wiper operation is stopped 5 seconds or more due to snow or other reason, the BCM stops rear
wiper operation to protect motor. At this time, after removing cause of stoppage, turn rear wiper switch to L
OFF, wait at least 1 minute, then turn wiper switch to ON or INT to restart wiper.
q The hood may be scratched if opened while front wipers are locked back.
q If there is unevenness or peeling of windshield glass wax, other oil films, or glass coating, wipers may not M
wipe correctly (juddering or other non-standard conditions may occur).
q Operating the washer pump continuously for more than 1 minute or longer may cause malfunction.
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FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEM PFP:28810
Components Parts and Harness Connector Location EKS00861
MKIB1982E
System Description EKS00862
q Front wiper HI/LO relay and front wiper main relay are built into 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 20A fuse (NO.38, located in the IPDM E/R)
q to front wiper main relay.
q through 20A fuse (NO.52, located in the IPDM E/R)
q to IPDM E/R (CPU).
q through 40A fusible link (letter J, located in fuse and fusible link box)
q to BCM terminals 74 and 79.
When ignition switch ON or START position, power is supplied
q through 10A fuse [NO.4, located in fuse block (J/B)]
q to BCM terminal 24,
q through 15A fuse [NO.1, located in fuse block (J/B)]
q to combination switch terminal 11, and
q to front wiper HI/LO relay, front wiper main relay and IPDM E/R (CPU)
Ground is supplied
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FRONT WIPER AND WASHER SYSTEM
q to front wiper motor terminal 1 and,
q to IPDM E/R terminals 3 and 54 A
q through body grounds E25 (CR engine models), E26 and E40, and
q to combination switch terminal 12 and
B
q to BCM terminals 2 and 70
q through body grounds M19 and M20.
LOW SPEED WIPER OPERATION C
When front wiper switch is placed in LO position, BCM read combination switch condition (Refer to WW-8,
"COMBINATION SWITCH READING FUNCTION" ). And BCM sent front wiper request signal (LO) to IPDM E/
R with CAN communication line. When IPDM E/R receives front wiper request signal (LO), it turns ON front D
wiper main relay (built into IPDM E/R).
Power is supplied
q through front wiper main relay and front wiper HI/LO relay and
E
q through IPDM E/R terminal 23
q to front wiper motor terminal 3.
Ground is supplied F
q to front wiper motor terminal 1,
q through body grounds E25 (CR engine models), E26 and E40.
With power and ground are supplied, the front wiper motor operates at low speed. G
HIGH SPEED WIPER OPERATION
When front wiper switch is placed in HI position, BCM read combination switch condition (Refer toWW-8, H
"COMBINATION SWITCH READING FUNCTION" ).And BCM sent front wiper request signal (HI) to IPDM E/
R with CAN communication line. When IPDM E/R receives front wiper request signal (HI), it turns ON front
wiper HI/LO relay and front wiper main relay (built into IPDM E/R).
Power is supplied I
q through front wiper main relay and front wiper HI/LO relay and,
q through IPDM E/R terminal 24
J
q to front wiper motor terminal 2.
Ground is supplied
q to front wiper motor terminal 1
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q through body grounds E25 (CR engine models), E26 and E40.
With power and ground are supplied, the front wiper motor operates at high speed.
INTERMITTENT OPERATION L
When front wiper switch is toggle to INT position, BCM read the current combination switch condition/position
(refer to WW-8, "COMBINATION SWITCH READING FUNCTION" ) and convert the outputs into 4 stages of
wiper speed. M
q BCM reads combination switch condition of V/INT 1, 2 and 3, it determines INT volume. (Refer to WW-8,
"COMBINATION SWITCH READING FUNCTION" )
q BCM receives vehicle speed signal from combination meter with CAN communication line.
q BCM calculates intermittent interval from INT volume and vehicle speed signal.
q BCM sends front wiper request signal to IPDM E/R for every intermittent interval via CAN communication
line.
Power is supplied
q through front wiper main relay and front wiper HI/LO relay and
q through IPDM E/R terminal 23
q to front wiper motor terminal 3.
Ground is supplied
q to front wiper motor terminal 1,
q through body grounds E25 (CR engine models), E26 and E40.
With power and ground are supplied, the front wiper motor operates.
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FRONT WIPER AND WASHER SYSTEM
AUTO STOP OPERATION
With wiper switch turned OFF, wiper motor will continue to operate until wiper arms reach stop position.
When wiper arms are not located at stop position with wiper switch OFF, power is supplied
q from terminal 23 of the IPDM E/R
q to front wiper motor terminal 3, in order to continue wiper motor operation at low speed.
Ground is supplied
q to front wiper motor terminal 1
q through body grounds E25 (CR engine models), E26 and E40.
When wiper arms reach stop position, front wiper motor terminals 1 and 4 are connected.
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.
MIST OPERATION
When the combination switch is toggle to the mist position (upward), wiper will wipe once. If the rear wiper
switch is turned to mist position, the rear wiper will continue the wiping frequency at low speed.
WASHER OPERATION
When front wiper switch is pulled to washer position, power is supplied
q through combination switch terminal 13
q to washer motor terminal 1.
Ground is supplied
q to washer motor terminal 2
q through combination switch terminals 12 and 14, and
q through body grounds M19 and M20.
With power and ground supplied, the washer motor operates, and at the same time,
When the wiper switch is pulled to the WASH position for 1 second or more. BCM sends front wiper request
signal (low) to IPDM E/R with CAN communication line. And the front wiper motor operates in low speed for 3
times to clean wind shield and then an additional wiping action will occur after 3 seconds to remove the mois-
ture appear on the glass shortly after the wash/wipe action.
FAIL-SAFE FUNCTION
When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control. If the
fail-safe system is operating, front wiper low speed operates when the ignition switch is turned from OFF to
ON or ACC and front wiper are stopped when the ignition switch is turn from ON or ACC to OFF. If the fail-safe
system is operating, front wiper does not operate when the combination switch is in any position. After CAN
communication recovers normally, it also returns to normal control. (Refer to PG-20, "FAIL-SAFE FUNCTION"
)
COMBINATION SWITCH READING FUNCTION
Description
q BCM reads combination switch status, and controls related systems such as headlamps and wipers,
according to the results.
q BCM reads information for a maximum of 20 switches by combining 5 output terminals (OUTPUT 1-5) and
5 input terminals (INPUT 1-5).
Operation Description
q BCM activates transistors of output terminals (OUTPUT 1-5) periodically, and allows current to flow in
turn.
q If any (1 or more) switches are turned ON, the circuit of output terminals (OUTPUT 1-5) and input termi-
nals (INPUT 1-5) becomes active.
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FRONT WIPER AND WASHER SYSTEM
q At this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When volt-
age of the input terminal (INPUT 1-5) corresponding to that switch changes, the interface in the BCM A
detects a voltage change, and the BCM determines that the switch is ON.
B
C
D
E
F
G
SKIB6494E
BCM - Operation Table of Combination Switches
q BCM reads operation status of the combination switch using combinations shown in the table below. H
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SKIB6495E
Sample Operation: (When Wiper Switch is Turned ON)
q When the wiper switch is turned ON, contact in the combination switch turns ON. At this time if OUTPUT 1
transistor is activated, the BCM detects that voltage changes in INPUT 3.
q When the OUTPUT 1 transistor is ON, the BCM detects that voltage changes in INPUT 3, and judges that
front wiper low is ON. Then the BCM sends a front wiper request signal (LO) to the IPDM E/R using CAN
communication.
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FRONT WIPER AND WASHER SYSTEM
q When OUTPUT 1 transistor is activated again, BCM detects that voltage changes in INPUT 3, and recog-
nizes that the wiper switch is continuously ON.
SKIB6496E
NOTE:
Each output terminal transistor operates at 20 ms intervals. Therefore, after a switch is turned ON, the
electrical loads are activate with a time delay, However, this delay is too small to be detected.
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FRONT WIPER AND WASHER SYSTEM
Operation Mode
q Combination switch reading function has operation modes shown below. A
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