Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Murano 2003-2007.2009 Approved Nissan Murano 2004 WW
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WIPER, WASHER & HORN
K ELECTRICAL
A
SECTION
WIPER, WASHER & HORN
WW B
C
D
E
CONTENTS
PRECAUTION ........................................................... 3 . Only Front Wiper LO Does Not Operate ................ 26 . F
Precautions for Supplemental Restraint System Only Front Wiper HI Does Not Operate ................. 27 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Only Front Wiper INT Does Not Operate ............... 28 .
SIONER" ................................................................. 3
. Front Wiper Interval Time Is Not Controlled by Vehi- G
Wiring Diagrams and Trouble Diagnosis ................. 3 . cle Speed ............................................................... 28
.
FRONT WIPER AND WASHER SYSTEM ................. 4 . Front Wiper Intermittent Operation Switch Position
Components Parts and Harness Connector Loca- Cannot Be Adjusted ............................................... 29 .
H
tion .......................................................................... 4
. Wipers Do Not Wipe When Front Washer Operates 29 ...
System Description ................................................. 4 . After Front Wipers Operate for 10 Seconds, They
LOW SPEED WIPER OPERATION ..................... 5 . Stop for 20 Seconds, and after repeating the oper-
HI SPEED WIPER OPERATION .......................... 5 . ations five times, they become inoperative ............ 29 . I
INTERMITTENT OPERATION ............................. 6 . Front Wipers Do Not Stop ...................................... 30 .
AUTO STOP OPERATION ................................... 6 . Removal and Installation of Front Wiper Arms,
WASHER OPERATION ........................................ 6 . Adjustment of Wiper Arms Stop Location .............. 31 . J
MIST OPERATION ............................................... 7 . REMOVAL .......................................................... 31 .
FAIL-SAFE FUNCTION ........................................ 7 . INSTALLATION .................................................. 31 .
COMBINATION SWITCH READING FUNCTION 7 ..... ADJUSTMENT ................................................... 31 .
WW
CAN Communication System Description ............. 10 . Removal and Installation of Front Wiper Motor and
CAN Communication Unit ..................................... 10 . Linkage .................................................................. 31
.
Schematic ..............................................................11. REMOVAL .......................................................... 31 .
Wiring Diagram -- WIPER -- ............................... 12 . INSTALLATION .................................................. 32 . L
Terminals and Reference Values for BCM ............ 15 . Disassembly and Assembly of Front Wiper Motor
Terminals and Reference Values for IPDM E/R .... 16 . and Linkage ........................................................... 32
.
How to Proceed With Trouble Diagnosis ............... 16 . DISASSEMBLY .................................................. 32 . M
Preliminary Check ................................................. 17 . ASSEMBLY ........................................................ 32 .
CHECK POWER SUPPLY AND GROUND CIR- Washer Nozzle Adjustment ................................... 33 .
CUIT ................................................................... 17
. Washer Tube Layout ............................................. 34 .
CONSULT-II Functions (BCM) .............................. 18 . Removal and Installation of Front Washer Nozzle... 34
CONSULT-II OPERATION ................................. 18 . REMOVAL .......................................................... 34 .
WORK SUPPORT .............................................. 19 . INSTALLATION .................................................. 34 .
DATA MONITOR ................................................ 19 . Inspection for Washer Nozzle ................................ 34 .
ACTIVE TEST .................................................... 20 . CHECK VALVE INSPECTION ............................ 34 .
CONSULT-II Functions (IPDM E/R) ...................... 20 . Removal and Installation of Front Wiper and Washer
CONSULT-II OPERATION ................................. 20 . Switch .................................................................... 35
.
SELF-DIAG RESULTS ....................................... 21 . REMOVAL .......................................................... 35 .
DATA MONITOR ................................................ 21 . INSTALLATION .................................................. 35 .
ACTIVE TEST .................................................... 22 . Removal and Installation of Washer Tank ............. 35 .
Front Wiper Does Not Operate ............................. 22 . REMOVAL .......................................................... 35 .
Front Wiper Does Not Return to Stop Position ...... 25 .
Revision: 2004 November WW-1 2004 Murano
INSTALLATION ................................................... 35 . ADJUSTMENT ....................................................50 .
Removal and Installation of Washer Pump ............ 36 . Removal and Installation of Rear Wiper Motor ......51 .
REMOVAL .......................................................... 36 . REMOVAL ...........................................................51 .
INSTALLATION ................................................... 36 . INSTALLATION ...................................................51 .
REAR WIPER AND WASHER SYSTEM ................. 37 . Removal and Installation of Rear Wiper Blade ......52 .
Components Parts and Harness Connector Loca- REMOVAL ...........................................................52 .
tion ......................................................................... 37
. INSTALLATION ...................................................53 .
System Description ................................................ 37 . Washer Nozzle Adjustment ....................................53 .
REAR WIPER OPERATION ............................... 38 . Washer Tube Layout ..............................................53 .
INTERMITTENT OPERATION ........................... 38 . Removal and Installation of Rear Washer Nozzle...54
AUTO STOP OPERATION ................................. 38 . Check Valve Inspection ..........................................54 .
WASHER OPERATION ...................................... 38 . Removal and Installation of Rear Wiper and Washer
BCM WIPER SWITCH READING FUNCTION ... 38 Switch ....................................................................54
.
Wiring Diagram -- WIP/ R -- ................................ 39 . Removal and Installation of Washer Tank ..............54 .
Terminals and Reference Values for BCM ............. 41 . Removal and Installation of Washer Pump ............54 .
How to Proceed With Trouble Diagnosis ............... 42 . POWER SOCKET ....................................................55 .
Preliminary Check ................................................. 42 . Wiring Diagram -- P/SCKT -- ...............................55 .
CHECK POWER SUPPLY AND GROUND CIR- Removal and Installation of Instrument Power
CUIT ................................................................... 42
. Socket ....................................................................56
.
CONSULT-II Functions .......................................... 43 . REMOVAL ...........................................................56 .
CONSULT-II OPERATION .................................. 43 . INSTALLATION ...................................................56 .
DATA MONITOR ................................................. 44 . Removal and Installation of Luggage Room Power
ACTIVE TEST .................................................... 45 . Socket ....................................................................56
.
Rear Wiper Does Not Operate .............................. 45 . REMOVAL ...........................................................56 .
Rear Wiper Does Not Return to Stop Position ....... 47 . INSTALLATION ...................................................56 .
Only Rear Wiper ON Does Not Operate ................ 48 . Removal and Installation of Console Power Socket...56
Only Rear Wiper INT Does Not Operate ............... 48 . HORN .......................................................................57
.
Wiper Does Not Wipe When Rear Washer Operates 48 ... Wiring Diagram -- HORN -- .................................57 .
Rear Wipers Do Not Stop ...................................... 48 . Removal and Installation ........................................58 .
Removal and Installation of Rear Wiper Arm, Adjust- REMOVAL ...........................................................58 .
ment of Wiper Arms Stop Location ........................ 49 . INSTALLATION ...................................................58 .
REMOVAL .......................................................... 49 . CIGARETTE LIGHTER ............................................59 .
INSTALLATION ................................................... 50 . Wiring Diagram -- CIGAR -- .................................59 .
Revision: 2004 November WW-2 2004 Murano
PRECAUTION
PRECAUTION PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AKS004MP
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 AKS004MR
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 November WW-3 2004 Murano
FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEM PFP:28810
Components Parts and Harness Connector Location AKS004MS
PKIA6404E
System Description AKS004MT
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 (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 (body control module).
Power is supplied at all times
q to ignition relay [located in IPDM E/R (intelligent power distribution module engine room)]
q through 50 A fusible link (letter F, located in fusible link block)
q to BCM (body control module) terminal 55
q through 10 A fuse [No. 18 located in fuse block (J/B)]
q to BCM (body control module) terminal 42
q through 30 A fuse [No. 73 located in IPDM E/R (intelligent power distribution module engine room)]
q to front wiper relay [located in IPDM E/R (intelligent power distribution module engine room)]
q through 15 A fuse [No. 78 located in IPDM E/R (intelligent power distribution module engine room)]
q to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine
room)].
q through 10 A fuse [No. 71, located in IPDM E/R (intelligent power distribution module engine room)]
Revision: 2004 November WW-4 2004 Murano
FRONT WIPER AND WASHER SYSTEM
q to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine
room)]. A
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 38 B
q through 10 A fuse [No. 84 located in IPDM E/R (intelligent power distribution module engine room)]
q through IPDM E/R (intelligent power distribution module engine room) terminal 44
C
q to combination switch terminal 14.
Ground is supplied
q to BCM (body control module) terminals 49 and 52 D
q through grounds M14 and M78
q to IPDM E/R (intelligent power distribution module engine room) terminals 38 and 60
q through grounds E13, E26 and E28 E
q to combination switch (wiper switch) terminal 12
q through grounds M14 and M78.
F
LOW SPEED WIPER OPERATION
When front wiper switch is in LO position, BCM detects the LO position of the wiper switch by BCM wiper
switch reading function.
BCM sent front wiper request signal (LO) to IPDM E/R by CAN communication line G
q from BCM terminals 39 and 40
q to IPDM E/R terminals 48 and 49.
H
When IPDM E/R receives front wiper request signal (LO), it turns ON front wiper relay (located in IPDM E/R),
power is supplied
q to front wiper motor terminal 3 I
q through IPDM E/R terminal 21 and front wiper relay and front wiper HI relay.
Ground is supplied
q to front wiper motor terminal 1 J
q through grounds E13, E26 and E28.
with power and ground is supplied, the front wiper motor operates at low speed.
WW
HI SPEED WIPER OPERATION
When front wiper switch is in HI position, BCM detects the HI position of the wiper switch by BCM wiper switch
reading function.
BCM sent front wiper request signal (HI) to IPDM E/R by CAN communication line L
q from BCM terminals 39 and 40
q to IPDM E/R terminals 48 and 49.
M
When IPDM E/R receives front wiper request signal (HI), it turns ON front wiper relay and front wiper HI relay
(located in IPDM E/R), power is supplied
q to front wiper motor terminal 2
q through IPDM E/R terminal 31 and front wiper relay and front wiper HI relay.
Ground is supplied
q to front wiper motor terminal 1
q through grounds E13, E26 and E28.
with power and ground is supplied, the front wiper motor operates at high speed.
Revision: 2004 November WW-5 2004 Murano
FRONT WIPER AND WASHER SYSTEM
INTERMITTENT OPERATION
Wiper intermittent operation delay interval is determined from a combination of 3 switches (intermittent opera-
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.
Wiper Dial Position Setting
Combination switch
Intermittent operation
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
Wiper dial position 2 ON ON OFF
Wiper dial position 3 ON OFF OFF
Wiper dial position 4 OFF OFF OFF
Wiper dial position 5 OFF OFF ON
Wiper dial position 6 OFF ON ON
Large
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-
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 (Combination switch output 3 and input 1 are performing.)
q Intermittent operation dial position 2: ON (Combination switch output 5 and input 1 are performing.)
q Intermittent operation dial position 3: ON (Combination switch output 4 and output 2 are performing.)
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.
Then 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.
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 21
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 32
q through front wiper motor terminal 4
q through front wiper motor terminal 1
q through grounds E13, E26 and E28.
Then 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, "COMBINATION SWITCH READING FUNCTION" ), combination
switch (wiper switch) ground is supplied
Power is supplied
q through 10 A fuse (No. 84 located in IPDM E/R)
q to combination switch terminal 14
Revision: 2004 November WW-6 2004 Murano
FRONT WIPER AND WASHER SYSTEM
q through combination switch (wiper switch) terminal 13
q to front and rear washer motor terminal 1 A
q to front and rear washer motor terminal 2
q through combination switch (wiper switch) terminal 11
B
q to combination switch terminal 12
q through grounds M14 and M78.
With ground is supplied, front and rear washer motor is operated. C
When BCM detects that front and rear 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 2 times and stops.
D
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
E
OPERATION" .
If the switch is held in the mist position, low speed operation continues.
FAIL-SAFE FUNCTION F
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.
G
COMBINATION SWITCH READING FUNCTION
Description
q BCM reads combination switch (wiper) status, and controls related systems such as head lamps and wip- H
ers, according to the results.
q BCM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1-5)
and five input terminals (INPUT 1-5). I
Operation Description
q BCM activates transistors of output terminals (OUTPUT 1-5) periodically and, and allows current to flow in
turn. J
q If any (1 or more) switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input terminals
(INPUT 1-5) becomes active.
WW
L
M
Revision: 2004 November WW-7 2004 Murano
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 input terminals (INPUT 1-5) corresponding to that switch changes, interface in BCM detects volt-
age change, and BCM determines that switch is ON.
SKIA4958E
BCM - Operation Table of Combination Switches
q BCM reads operation status of combination switch using combinations shown in table below.
SKIA4959E
Sample Operation: (When Wiper Switch Turned ON)
q When wiper switch is turned ON, contact in combination switch turns ON. At this time if OUTPUT 1 tran-
sistor is activated, BCM detects that voltage changes in INPUT 3.
Revision: 2004 November WW-8 2004 Murano
FRONT WIPER AND WASHER SYSTEM
q When OUTPUT 1 transistor is ON, BCM detects that voltage changes in INPUT 3, and judges that front
wiper low is ON. Then BCM sends front wiper request signal (LO) to IPDM E/R using CAN communica- A
tion.
q When OUTPUT 1 transistor is activated again, BCM detects that voltage changes in INPUT 3, and recog-
nizes that wiper switch is continuously ON. B
C
D
E
F
G
H
I
J
SKIA5290E
NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON, electri- WW
cal loads are activated with time delay. But this time delay is so short that it cannot be detected by human
senses.
Operation Mode L
Combination switch reading function has operation modes shown below.
1. Normal status
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