2007 NISSAN 350Z Wiper, Washer And Horn Workshop Manual

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WIPER, WASHER & HORN
K ELECTRICAL
CONTENTS
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WIPER, WASHER & HORN
PRECAUTION ............................................................ 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Procedures without Cowl Top Cover ..... 3
Precautions for Battery Service ................................ 3
FRONT WIPER AND WASHER SYSTEM .................. 4
Components Parts and Harness Connector Loca-
tion ........................................................................... 4
System Description .................................................. 4
OUT LINE .............................................................. 4
LOW SPEED WIPER OPERATION ...................... 5
HIGH SPEED WIPER OPERATION ..................... 5
INTERMITTENT OPERATION .............................. 5
AUTO STOP OPERATION .................................... 6
WASHER OPERATION ......................................... 6
MIST OPERATION ................................................ 7
FAIL-SAFE FUNCTION ......................................... 7
COMBINATION SWITCH READING FUNCTION ..... 7
CAN Communication System Description ................ 9
CAN Communication Unit ........................................ 9
Schematic .............................................................. 10
Wiring Diagram — WIPER — ................................. 11
Terminals and Reference Values for BCM ............. 14
Terminals and Reference Values for IPDM E/R ..... 17
How to Proceed With Trouble Diagnosis ................ 17
Preliminary Check .................................................. 18
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 18
CONSULT-III Function (BCM) ................................ 19
WORK SUPPORT ............................................... 19
DATA MONITOR ................................................. 19
ACTIVE TEST ..................................................... 19
CONSULT-III Function (IPDM E/R) ........................ 20
DATA MONITOR ................................................. 20
ACTIVE TEST ..................................................... 20
Front Wiper Does Not Operate .............................. 21
Front Wiper Does Not Return to Stop Position ....... 23
Only Front Wiper Low Does Not Operate .............. 24
Only Front Wiper Hi Does Not Operate .................. 25Only Front Wiper Intermittent Does Not Operate ... 27
Front Wiper Interval Time Is Not Controlled by Vehi-
cle Speed ................................................................ 27
Front Wiper Intermittent Operation Switch Position
Cannot Be Adjusted ................................................ 27
Wiper Does Not Wipe When Front Washer Operates
... 27
After Front Wiper Operate for 10 Seconds, They
Stop for 20 Seconds, and After Repeating the Oper-
ations Five Times, They Become Inoperative ........ 28
Front Wiper Does Not Stop ..................................... 29
Removal and Installation of Front Wiper Arms,
Adjustment of Wiper Arms Stop Location ............... 30
REMOVAL ........................................................... 30
INSTALLATION ................................................... 30
Removal and Installation of Front Wiper Drive
Assembly ................................................................ 30
REMOVAL ........................................................... 30
INSTALLATION ................................................... 30
Disassembly and Assembly Front Wiper Motor and
Linkage ................................................................... 31
DISASSEMBLY ................................................... 31
ASSEMBLY ......................................................... 31
Washer Nozzle Adjustment .................................... 32
Washer Tube Layout .............................................. 33
Removal and Installation of Front Washer Nozzle ... 33
Removal and Installation of Front Washer Tube
Joint ........................................................................ 33
REMOVAL ........................................................... 33
INSTALLATION ................................................... 33
Inspection for Washer Nozzle ................................. 33
CHECK VALVE INSPECTION ............................. 33
Inspection of Front Wiper and Washer Switch Circuit ... 34
Removal and Installation of Front Wiper and Washer
Switch ..................................................................... 34
REMOVAL ........................................................... 34
INSTALLATION ................................................... 34
Removal and Installation of Washer Tank .............. 34
REMOVAL ........................................................... 34

WW-2Revision: 2006 November2007 350Z INSTALLATION .................................................... 35
Removal and Installation of Washer Pump ............. 35
REMOVAL ........................................................... 35
INSTALLATION .................................................... 35
REAR WIPER AND WASHER SYSTEM .................. 36
Components Parts and Harness Connector Loca-
tion .......................................................................... 36
System Description ................................................. 36
OUT LINE ............................................................ 36
BCM WIPER SWITCH READING FUNCTION .... 37
Wiring Diagram — WIP/ R — ................................. 38
Terminals and Reference Values for BCM .............. 40
How to Proceed With Trouble Diagnosis ................ 41
Preliminary Check .................................................. 42
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 42
CONSULT-III Function (BCM) ................................. 43
DATA MONITOR .................................................. 43
ACTIVE TEST ..................................................... 43
Rear Wiper Does Not Operate ............................... 43
Rear Wiper Does Not Return to Stop Position ........ 45
Only Rear Wiper ON Does Not Operate ................. 46
Only Rear Wiper INT Does Not Operate ................ 46
Wiper Does Not Wipe When Rear Washer Operates ... 46
Rear Wiper Does Not Stop ..................................... 46
Removal and Installation of Rear Wiper Arm, Adjust-
ment of Wiper Arms Stop Location ......................... 46
REMOVAL ........................................................... 46
INSTALLATION .................................................... 47
Removal and Installation of Rear Wiper Motor ....... 47REMOVAL ............................................................ 48
INSTALLATION .................................................... 48
Washer Nozzle Adjustment ..................................... 48
Washer Tube Layout ............................................... 49
Removal and Installation of Rear Washer Nozzle ... 49
REMOVAL ............................................................ 49
INSTALLATION .................................................... 49
Inspection for Washer Nozzle ................................. 49
CHECK VALVE INSPECTION ............................. 49
Inspection of Rear Wiper and Washer Switch Circuit ... 49
Removal and Installation of Rear Wiper and Washer
Switch ..................................................................... 49
Removal and Installation of Washer Tank ............... 50
Removal and Installation of Washer Pump ............. 50
POWER SOCKET ..................................................... 51
Wiring Diagram — P/SCKT — ................................ 51
Removal and Installation (Luggage Floor Finisher
Lower) ..................................................................... 52
REMOVAL ............................................................ 52
INSTALLATION .................................................... 52
Removal and Installation (Instrument Passenger
Panel Lower) ........................................................... 52
REMOVAL ............................................................ 52
INSTALLATION .................................................... 52
HORN ........................................................................ 53
Wiring Diagram — HORN — .................................. 53
Removal and Installation ......................................... 54
REMOVAL ............................................................ 54
INSTALLATION .................................................... 54

PRECAUTION
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PRECAUTIONPFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NKS00544
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
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
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:

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.

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.

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.
Precautions for Procedures without Cowl Top CoverNKS00545
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions for Battery ServiceNKS00546
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
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
PIIB3706J

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FRONT WIPER AND WASHER SYSTEM
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FRONT WIPER AND WASHER SYSTEMPFP:28810
Components Parts and Harness Connector LocationNKS0051Z
System DescriptionNKS00520

All front wiper relays (HI, LO) are included in IPDM E/R (intelligent power distribution module engine
room).

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.

BCM controls front wiper LO, HI, and INT (intermittent) operation.

IPDM E/R operates wiper motor according to CAN communication signals from BCM.
OUT LINE
Power is supplied at all times

to ignition relay, located in IPDM E/R, from battery direct

through 40 A fusible link [letter F, located in fuse, fusible link and relay box]

to BCM terminal 55,

through 10 A fuse [No.18 located in fuse block (J/B)]

to BCM terminal 42,

through 30 A fuse [No.73 located in IPDM E/R]

to front wiper relay, located in IPDM E/R,

through 15 A fuse [No.78 located in IPDM E/R]

to CPU (central processing unit) located in IPDM E/R,

through 10 A fuse [No.71 located in IPDM E/R]

to CPU located in IPDM E/R.
When ignition switch is in ON or START position, power is supplied

to ignition relay, located in IPDM E/R,

through 10 A fuse [No.1 located in fuse block (J/B)]

to BCM terminal 38,

through ignition relay, located in IPDM E/R

to front wiper relay, located in IPDM E/R

to front wiper high relay, located in IPDM E/R

to CPU located in IPDM E/R,

through 10 A fuse [No.84 located in IPDM E/R]

through IPDM E/R terminal 44
PKID0828E

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to front washer pump terminal 2.
Ground is supplied

to BCM terminal 52

through grounds M30 and M66,

to IPDM E/R terminals 38 and 60

through grounds E17, E43 and B102 (with VDC system, navigation system or telephone),

through grounds E17, E43 and F152 (without VDC system, navigation system and telephone),

to combination switch terminal 12

through grounds M30 and M66.
LOW SPEED WIPER OPERATION
When the front wiper switch is in low position, BCM detects low speed wiper ON signal by BCM wiper switch
reading function.
BCM sends front wiper request signal (LOW) with CAN communication line

from BCM terminals 39 and 40

to IPDM E/R terminals 48 and 49.
When the IPDM E/R receives front wiper request signal (LOW), it turns ON front wiper relay, located in the
IPDM E/R, power is supplied

to front wiper motor terminal 3

through IPDM E/R terminal 21 and front wiper high relay and front wiper relay.
Ground is supplied

to front wiper motor terminal 4

through grounds E17, E43 and B102 (with VDC system, navigation system or telephone),

through grounds E17, E43 and F152 (without VDC system, navigation system and telephone).
With power and ground is supplied, front wiper motor operates at low speed.
HIGH SPEED WIPER OPERATION
When the front wiper switch is in high position, BCM detects high speed wiper ON signal by BCM wiper switch
reading function.
BCM sends front wiper request signal (HI) with CAN communication line

from BCM terminals 39 and 40

to IPDM E/R terminals 48 and 49.
When the IPDM E/R receives front wiper request signal (HI), it turns ON front wiper relay, located in IPDM E/
R, power is supplied

to front wiper motor terminal 2

through IPDM E/R terminal 31 and front wiper high relay and front wiper relay.
Ground is supplied

to front wiper motor terminal 4

through grounds E17, E43 and B102 (with VDC system, navigation system or telephone),

through grounds E17, E43 and F152 (without VDC system, navigation system and telephone).
With power and ground is supplied, front wiper motor operates at high speed.
INTERMITTENT OPERATION
Front wiper intermittent operation delay interval is determined from a combination of 3 switches (intermittent
operation dial position 1, 2, and 3) and vehicle speed signal.
After each intermittent operation delay interval, BCM sends front wiper request signal to IPDM E/R.

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Wiper Dial Position Setting
Example: For wiper dial position 1
Using combination switch reading function, BCM detects ON/OFF status of intermittent operation dial posi-
tions 1, 2, and 3.
When combination switch status is as listed below, BCM determines that it is wiper dial position 1.

Intermittent operation dial position 1: ON (Continuity exists between combination switch output 3 and input
1.)

Intermittent operation dial position 2: ON (Continuity exists between combination switch output 5 and input
1.)

Intermittent operation dial position 3: ON (Continuity exists between combination switch output 4 and input
2.)
BCM determines front wiper intermittent operation delay interval from wiper dial position 1 and vehicle speed,
and sends wiper request signal (INT) to IPDM E/R.
AUTO STOP OPERATION
With wiper switch turned OFF, wiper motor will continue to operate until wiper arms reach windshield base.
When the wiper arms are not located at base of windshield with wiper switch OFF, ground is provided

from IPDM E/R terminal 21

to front wiper motor terminal 3, in order to continue wiper motor operation at low speed
When the wiper arms reach base of windshield, front wiper motor terminals 1 and 4 are connected, and
ground is supplied

to IPDM E/R terminal 32

through front wiper motor terminals 1 and 4

through grounds E17, E43 and B102 (with VDC system, navigation system or telephone),

through grounds E17, E43 and F152 (without VDC system, navigation system and telephone).
Then the IPDM E/R sends auto stop operation signal to BCM with CAN communication.
When the BCM receives auto stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN com-
munication line. IPDM E/R stops wiper motor. Wiper motor will then stop wiper arms at the STOP position.
WASHER OPERATION
When the wiper switch is in front wiper washer position, BCM detect front wiper washer signal by BCM wiper
switch reading function (Refer to WW-7, "
COMBINATION SWITCH READING FUNCTION" ).
Combination switch ground is supplied

to front washer pump terminal 1

through combination switch terminal 11

to combination switch terminal 12

through grounds M30 and M66.
With ground is supplied, front washer pump is operated.
When the BCM detects that front washer pump has operated for 0.4 seconds or longer, BCM operates front
wiper motor for low speed.
When the BCM detects washer switch is OFF, low speed operation cycles approximately 2 times and stops.
Wiper dial positionIntermittent operation
intervalCombination switch
Intermittent operation
dial position 1Intermittent operation
dial position 2Intermittent operation
dial position 3
1 Short
↑
↓
LongON ON ON
2ONONOFF
3ONOFFOFF
4 OFF OFF OFF
5OFFOFFON
6 OFF ON ON
7 OFF ON OFF

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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 switch is held in mist position, low speed operation continues.
FAIL-SAFE FUNCTION
If an abnormality occurs in CAN communications, IPDM E/R holds the condition just before fail-safe status is
initiated until ignition switch is turned off. (If wipers were operating in LO just before the initiation of fail-safe
status, they continue to operate in LO until ignition switch is turned OFF)
COMBINATION SWITCH READING FUNCTION
Description

BCM reads combination switch (wiper) status, and controls related systems such as headlamps and wip-
ers, according to the results.

BCM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1 - 5)
and five input terminals (INPUT 1 - 5).
Operation Description

BCM activates transistors of output terminals (OUTPUT 1 - 5) periodically, and allows current to flow in
turn.

If any (1 or more) switches are turned ON, circuit of output terminals (OUTPUT 1 - 5) and input terminals
(INPUT 1 - 5) becomes active.

At this time, transistors of output terminals (OUTPUT 1 - 5) are activated to allow current to flow. When
voltage of input terminals (INPUT 1 - 5) corresponding to that switch changes, interface in BCM detects
voltage change, and BCM determines that switch is ON.
PKIC4861E

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BCM - Operation Table of Combination Switches
BCM reads operation status of combination switch using combinations shown in table below.
Sample Operation: (When Wiper Switch Turned to LOW Position)

When wiper switch is turned to LOW position, front wiper LOW contact in combination switch turns ON. At
this time if OUTPUT 1 transistor is activated, BCM detects that voltage changes in INPUT 3.

When BCM detects that voltage changes in INPUT 3 while OUTPUT 1 transistor is ON, it judges that front
wiper switch is in LOW position. Then BCM sends front wiper request signal (LO) to IPDM E/R using CAN
communication.

If BCM detects that voltage changes in INPUT 3 when OUTPUT 1 transistor is activated again, it recog-
nizes that wiper switch is still in LOW position.
PKIC4963E
PKIC4862E