Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Pathfinder 2004-2007 Approved Nissan Pathfinder 2005 WW
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K ELECTRICAL
A
SECTION
WIPER, WASHER & HORN
WW B
C
D
E
CONTENTS
PRECAUTION ........................................................... 3 . ONLY FRONT WIPER HI DOES NOT OPERATE 26 ... F
Precautions for Supplemental Restraint System ONLY FRONT WIPER INT DOES NOT OPER-
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- ATE ..................................................................... 27
.
SIONER" ................................................................. 3
. FRONT WIPER INTERMITTENT OPERATION G
Wiring Diagrams and Trouble Diagnosis ................. 3 . SWITCH POSITION CANNOT BE ADJUSTED... 28
FRONT WIPER AND WASHER SYSTEM ................. 4 . WIPERS DO NOT WIPE WHEN FRONT
Components Parts and Harness Connector Loca- WASHER OPERATES ....................................... 28 .
H
tion .......................................................................... 4
. FRONT WIPERS OPERATE FOR 10 SECONDS,
System Description ................................................. 4 . STOP FOR 20 SECONDS, AND AFTER
LOW SPEED WIPER OPERATION ..................... 5 . REPEATING THIS OPERATION FIVE TIMES,
HI SPEED WIPER OPERATION .......................... 5 . THEY BECOME INOPERATIVE ........................ 28 . I
INTERMITTENT OPERATION ............................. 5 . Removal and Installation of Front Wiper Arms,
AUTO STOP OPERATION ................................... 6 . Adjustment of Wiper Arms Stop Location .............. 30 .
FRONT WASHER OPERATION .......................... 6 . REMOVAL .......................................................... 30 . J
MIST OPERATION ............................................... 6 . ADJUSTMENT ................................................... 30 .
FAIL-SAFE FUNCTION ........................................ 6 . INSTALLATION .................................................. 30 .
COMBINATION SWITCH READING FUNCTION 7 ..... Removal and Installation of Wiper Motor and Link-
WW
CAN Communication System Description ............... 7 . age ......................................................................... 31
.
Schematic ............................................................... 8
. REMOVAL .......................................................... 31 .
Wiring Diagram -- WIPER -- ................................. 9 . INSTALLATION .................................................. 31 .
Terminals and Reference Values for BCM ............ 12 . Washer Nozzle Adjustment ................................... 32 . L
Terminals and Reference Values for IPDM E/R .... 13 . Washer Tube Layout ............................................. 32 .
Work Flow ............................................................. 13. Removal and Installation of Wiper and Washer
Preliminary Inspection ........................................... 13 . Switch .................................................................... 32
. M
INSPECTION FOR POWER SUPPLY AND REMOVAL .......................................................... 32 .
GROUND CIRCUIT ............................................ 13 . INSTALLATION .................................................. 32 .
CONSULT-II Function (BCM) ................................ 15 . Removal and Installation of Washer Fluid Reservoir 33 ...
CONSULT-II OPERATION ................................. 15 . REMOVAL .......................................................... 33 .
DATA MONITOR ................................................ 16 . INSTALLATION .................................................. 33 .
ACTIVE TEST .................................................... 16 . Removal and Installation of Washer Motor ............ 34 .
CONSULT-II Function (IPDM E/R) ........................ 17 . REMOVAL .......................................................... 34 .
CONSULT-II OPERATION ................................. 17 . INSTALLATION .................................................. 34 .
DATA MONITOR ................................................ 18 . Removal and Installation of Washer Fluid Level Sen-
ACTIVE TEST .................................................... 18 . sor .......................................................................... 34
.
Trouble Diagnosis ................................................. 19 . REMOVAL .......................................................... 34 .
FRONT WIPER DOES NOT OPERATE ............ 19 . INSTALLATION .................................................. 34 .
FRONT WIPER STOP POSITION IS INCOR- REAR WIPER AND WASHER SYSTEM ................. 35 .
RECT ................................................................. 22
. Components Parts and Harness Connector Loca-
ONLY FRONT WIPER LOW DOES NOT OPER- tion ......................................................................... 35
.
ATE .................................................................... 24
. System Description ................................................ 35 .
Revision: November 2005 WW-1 2005 Pathfinder
REAR WIPER OPERATION ............................... 35 . INSTALLATION ...................................................49 .
INTERMITTENT OPERATION ........................... 36 . Removal and Installation of Rear Wiper Motor ......50 .
AUTO STOP OPERATION ................................. 36 . REMOVAL ...........................................................50 .
REAR WASHER OPERATION ........................... 36 . INSTALLATION ...................................................50 .
BCM WIPER SWITCH READING FUNCTION ... 36 Rear Washer Nozzle Adjustment ...........................51 .
Wiring Diagram -- WIP/R -- ................................. 37 . Rear Washer Tube Layout .....................................51 .
Terminals and Reference Values for BCM ............. 39 . Removal and Installation of Rear Washer Nozzle ...52
How to Proceed With Trouble Diagnosis ............... 40 . Check Valve ...........................................................52
.
Preliminary Check ................................................. 40
. Removal and Installation of Wiper and Washer
INSPECTION FOR POWER SUPPLY AND Switch ....................................................................52
.
GROUND CIRCUIT ............................................ 40 . Removal and Installation of Washer Fluid Reservoir ...52
CONSULT-II Function (BCM) ................................. 42 . Removal and Installation of Washer Motor ............52 .
CONSULT-II OPERATION .................................. 42 . POWER SOCKET ....................................................53 .
DATA MONITOR ................................................. 43
. Wiring Diagram -- P/SCKT -- ...............................53 .
ACTIVE TEST .................................................... 43
. Removal and Installation of Power Sockets ...........54 .
Rear Wiper Does Not Operate .............................. 44 . REMOVAL ...........................................................54 .
Rear Wiper Stop Position Is Incorrect .................... 46 . INSTALLATION ...................................................54 .
Only Rear Wiper Does Not Operate ...................... 47 . HORN .......................................................................55
.
Only Rear Wiper Intermittent Does Not Operate ... 47 Wiring Diagram -- HORN -- .................................55 .
Wiper Does Not Wipe When Rear Washer Operates 48 ... Removal and Installation of Horn ...........................56 .
Removal and Installation of Rear Wiper Arm, Adjust- REMOVAL ...........................................................56 .
ment of Rear Wiper Arm Stop Location ................. 49 . INSTALLATION ...................................................56 .
REMOVAL .......................................................... 49
.
Revision: November 2005 WW-2 2005 Pathfinder
PRECAUTION
PRECAUTION PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS009OS
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
G 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
G 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
G 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 EKS009OT
When you read wiring diagrams, refer to the following:
H
G Refer to GI-15, "How to Read Wiring Diagrams" .
G Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.
When you perform trouble diagnosis, refer to the following: I
G Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" .
G Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" .
J
WW
L
M
Revision: November 2005 WW-3 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEM PFP:28810
Components Parts and Harness Connector Location EKS009OU
WKIA4077E
System Description EKS009OV
G Both front wiper relays are located in the IPDM E/R (intelligent power distribution module engine room).
G The wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input ter-
minals. Terminal combination status is read by the BCM (body control module) when the wiper switch is
turned ON.
G BCM controls front wiper LO, HI, and INT (intermittent) operation.
G IPDM E/R operates the wiper motor according to CAN communication signals from the BCM.
Power is supplied at all times
G to ignition relay, located in the IPDM E/R, and
G through 50A fusible link (letter g , located in the fuse and fusible link box)
G to BCM terminal 70, and
G through 30A fuse (No. 39, located in the IPDM E/R)
G to front wiper relay (located in the IPDM E/R).
With the ignition switch in ON or START position, power is supplied
Revision: November 2005 WW-4 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
G through 10A fuse [No. 15, located in the fuse block (J/B)]
G to combination switch terminal 2, and A
G through 10A fuse [No. 1, located in the fuse block (J/B)]
G to BCM terminal 38.
B
Ground is supplied
G to BCM terminal 67 and
G to combination switch terminal 9 C
G through grounds M57, M61 and M79, and
G to IPDM E/R terminals 38 and 59 and
G to front wiper motor terminal 2 D
G through grounds E9, E15 and E24.
LOW SPEED WIPER OPERATION
E
When the ignition switch is in the ON or START position, and the front wiper switch is turned to the low posi-
tion, the BCM detects a low speed wiper ON request through the combination switch (wiper switch) reading
function.
The BCM then sends a front wiper (low) request signal over CAN communication lines F
G from BCM terminals 39 and 40
G to IPDM E/R terminals 39 and 40.
When IPDM E/R receives front wiper (low) request signal, it supplies ground to energize the front wiper relay. G
With the front wiper relay energized, power is supplied
G through front wiper relay
H
G to front wiper high relay
G through IPDM E/R terminal 32
G to front wiper motor terminal 1.
I
With power and ground supplied, the front wiper motor operates at low speed.
HI SPEED WIPER OPERATION
When the ignition switch is in the ON or START position, and the front wiper switch is turned to the high posi- J
tion, the BCM detects a high speed wiper ON request through the combination switch (wiper switch) reading
function.
The BCM then sends a front wiper (high) request signal over CAN communication lines WW
G from BCM terminals 39 and 40
G to IPDM E/R terminals 39 and 40.
When the IPDM E/R receives a front wiper (high) request signal, it supplies ground to energize the front wiper L
and the front wiper high relays.
With the front wiper and the front wiper high relays energized, power is supplied
G through front wiper relay M
G to front wiper high relay
G through IPDM E/R terminal 35
G to front wiper motor terminal 4.
With power and ground supplied, the front wiper motor operates at high speed.
INTERMITTENT OPERATION
Wiper intermittent operation delay interval is determined from the combination of the intermittent wiper dial
position inputs and vehicle speed. During each intermittent operation delay interval, the BCM sends a front
wiper request signal to the IPDM E/R to operate the wipers.
When the ignition switch is in the ON or START position, and the front wiper switch is turned to an intermittent
position, the BCM detects a front wiper (intermittent) ON request through the combination switch (wiper
switch) reading function.
The BCM then sends a front wiper (intermittent) request signal over CAN communication lines
G from BCM terminals 39 and 40
G to IPDM E/R terminals 39 and 40.
Revision: November 2005 WW-5 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
When the BCM determines that combination switch status is front wiper intermittent ON, it performs the follow-
ing operations.
G BCM detects ON/OFF status of intermittent wiper dial position.
G BCM calculates operation interval from wiper dial position and vehicle speed signal received through CAN
communications.
G BCM sends front wiper request signal (INT) to IPDM E/R at calculated operation interval.
When the IPDM E/R receives a front wiper request signal (INT), it supplies ground to energize the front wiper
relay. It then sends an auto-stop signal to the BCM, and conducts intermittent front wiper motor operation.
AUTO STOP OPERATION
When the wiper arms are not located at the base of the windshield, and the wiper switch is turned OFF, the
wiper motor will continue to operate until the wiper arms reach the windshield base. When the wiper arms
reach the base of windshield, front wiper motor terminals 5 and 2 are connected.
Ground is supplied
G to IPDM E/R terminal 43
G through front wiper motor terminal 5
G through front wiper motor terminal 2
G through grounds E9, E15 and E24.
The IPDM E/R sends an auto stop operation signal to the BCM through CAN communication lines.
When the BCM receives an auto stop operation signal, the BCM sends wiper stop signal to the IPDM E/R over
CAN communication lines. The IPDM E/R then de-energizes the front wiper relay.
The wiper motor will then stop the wiper arms at the STOP position.
FRONT WASHER OPERATION
When the ignition switch is in the ON or START position, and the front and rear washer switches are OFF, the
front and rear washer motor is supplied power
G through 10A fuse [No. 15, located in the fuse block (J/B)]
G through combination switch (wiper switch) terminal 2
G through combination switch (wiper switch) terminal 4
G to front and rear washer motor terminal 1.
When the front wiper switch is in the front washer position, the BCM detects a front washer signal request
through the combination switch (wiper switch) reading function.
Combination switch ground is supplied
G to front and rear washer motor terminal 2
G through combination switch (wiper switch) terminal 3
G through combination switch (wiper switch) terminal 9
G through grounds M57, M61 and M79.
With ground supplied, the front and rear washer motor is operated in the front direction.
When the BCM detects that front washer motor has operated for 0.4 seconds or longer, the BCM uses CAN
communication and sends a wiper request signal to the IPDM E/R for low speed operation of wipers.
When the BCM detects that the washer switch is OFF, low speed operation cycles approximately 3 times and
then stops.
MIST OPERATION
When the wiper switch is temporarily placed in 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
The BCM includes fail-safe function to prevent malfunction of electrical components controlled by CAN com-
munications if a malfunction in CAN communications occurs.
The BCM uses CAN communications to stop output of electrical components it controls.
Until the ignition switch is turned OFF, the front wiper system remains in same status as just before fail-safe
control was initiated. (If wiper was in low speed operation just before fail-safe, it continues low speed operation
until ignition switch is turned OFF.)
Revision: November 2005 WW-6 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
When fail-safe status is initiated, the BCM remains in standby until normal signals are received.
When normal signals are received, fail-safe status is canceled. A
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
B
CAN Communication System Description EKS009OW
Refer to LAN-24, "CAN COMMUNICATION" .
C
D
E
F
G
H
I
J
WW
L
M
Revision: November 2005 WW-7 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
Schematic EKS009OX
WKWA2985E
Revision: November 2005 WW-8 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
Wiring Diagram -- WIPER -- EKS009OY
A
B
C
D
E
F
G
H
I
J
WW
L
M
WKWA2986E
Revision: November 2005 WW-9 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
WKWA2987E
Revision: November 2005 WW-10 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
A
B
C
D
E
F
G
H
I
J
WW
L
M
WKWA1966E
Revision: November 2005 WW-11 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
Terminals and Reference Values for BCM EKS009OZ
Measuring condition
Termi- Wire Reference Value (V)
Signal name Ignition
nal No. color Operation or condition (Approx.)
switch
G Light switch and wiper switch OFF
2 P Combination switch input 5 ON
G Wiper dial position 4
SKIA5291E
G Light switch and wiper switch OFF
3 SB Combination switch input 4 ON
G Wiper dial position 4
SKIA5292E
G Light switch and wiper switch OFF
4 V Combination switch input 3 ON
G Wiper dial position 4
SKIA5291E
5 L Combination switch input 2
G Light switch and wiper switch OFF
ON
6 R Combination switch input 1 G Wiper dial position 4
SKIA5292E
G Light switch and wiper switch OFF
32 O Combination switch output 5 ON
G Wiper dial position 4
SKIA5291E
G Light switch and wiper switch OFF
33 GR Combination switch output 4 ON
G Wiper dial position 4
SKIA5292E
G Light switch and wiper switch OFF
34 G Combination switch output 3 ON
G Wiper dial position 4
SKIA5291E
Revision: November 2005 WW-12 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
Measuring condition
Termi- Wire Reference Value (V) A
Signal name Ignition
nal No. color Operation or condition (Approx.)
switch
35 BR Combination switch output 2
B
G Light switch and wiper switch OFF
ON
36 LG Combination switch output 1 G Wiper dial position 4
C
SKIA5292E
38 W/R Ignition switch (ON) ON -- Battery voltage D
39 L CAN-H ON -- --
40 P CAN-L ON -- --
E
67 B Ground -- -- 0
70 W Battery power OFF -- Battery voltage
Terminals and Reference Values for IPDM E/R EKS009P0
F
Measuring condition
Terminal Wire Reference value (V)
Signal name Ignition G
No. color Operation or condition (Approx.)
switch
OFF 0
32 GR Low speed signal ON Wiper switch
LO Battery voltage H
OFF 0
35 L High speed signal ON Wiper switch
HI Battery voltage
I
38 B Ground -- -- 0
39 L CAN-H ON -- --
40 P CAN-L ON -- -- J
Wiper operating Battery voltage
43 G Wiper auto stop signal ON
Wiper stopped 0
WW
59 B Ground -- -- 0
Work Flow EKS009P1
L
1. Confirm the symptom or customer complaint.
2. Understand the system description, refer to WW-4, "System Description" .
3. Perform preliminary inspection, refer to WW-13, "Preliminary Inspection" . M
4. Check symptom and repair or replace the cause of malfunction.
5. Does wiper function operate normally? If it operates normally, GO TO 6. If not, GO TO 4.
6. Inspection End.
Preliminary Inspection EKS009P2
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
Inspection procedure
1. CHECK FUSE
Check if wiper or washer fuse is blown.
Unit Power source Fuse No.
Ignition ON or START 1
BCM
Battery g
Front wiper relay Battery 39
Front and rear washer motor Ignition ON or START 15
Revision: November 2005 WW-13 2005 Pathfinder
FRONT WIPER AND WASHER SYSTEM
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of blown fuse before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connectors.
2. Check voltage between BCM harness connector terminals and
ground.
BCM Ignition switch position
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