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K ELECTRICAL
A
SECTION
WIPER, WASHER & HORN
WW B
C
D
E
CONTENTS
PRECAUTION ........................................................... 2 . ATE .................................................................... 18
. F
Precautions for Supplemental Restraint System ONLY FRONT WIPER HI DOES NOT OPERATE 20 ...
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- ONLY FRONT WIPER INTERMITTENT DOES
SIONER" ................................................................. 2
. NOT OPERATE .................................................. 21 . G
FRONT WIPER AND WASHER SYSTEM ................. 3 . FRONT WIPER INTERMITTENT OPERATION
Components Parts and Harness Connector Loca- SWITCH POSITION CANNOT BE ADJUSTED... 22
tion .......................................................................... 3
. WIPERS DO NOT WIPER WHEN FRONT
H
System Description ................................................. 3 . WASHER OPERATES ....................................... 22 .
LOW SPEED WIPER OPERATION ..................... 4 . FRONT WIPERS OPERATE FOR 10 SEC-
HI SPEED WIPER OPERATION .......................... 4 . ONDS, STOP FOR 20 SECONDS, AND AFTER
INTERMITTENT OPERATION ............................. 4 . REPEATING THIS OPERATION FIVE TIMES, I
AUTO STOP OPERATION ................................... 5 . THEY BECOME INOPERATIVE ........................ 22 .
FRONT WASHER OPERATION .......................... 5 . Front Wiper Arms .................................................. 24 .
MIST OPERATION ............................................... 5 . REMOVAL AND INSTALLATION ....................... 24 . J
FAIL-SAFE FUNCTION ........................................ 5 . FRONT WIPER ARM ADJUSTMENT ................ 24 .
COMBINATION SWITCH READING FUNCTION 5 ..... Wiper Motor and Linkage ...................................... 25 .
CAN Communication System Description ............... 5 . REMOVAL AND INSTALLATION ....................... 25 .
WW
Schematic ............................................................... 6
. Washer Nozzle Adjustment ................................... 25 .
Wiring Diagram -- WIPER -- ................................. 7 . Washer Tube Layout ............................................. 26 .
Terminals and Reference Values for BCM ............ 10 . Wiper and Washer Switch ..................................... 26 .
Terminals and Reference Values for IPDM E/R .... 10 . REMOVAL AND INSTALLATION ....................... 26 . L
Work Flow ............................................................. 10. Washer Fluid Reservoir ......................................... 26 .
Preliminary Inspection ........................................... 10 . REMOVAL AND INSTALLATION ....................... 26 .
INSPECTION FOR POWER SUPPLY AND Washer Motor ........................................................ 27. M
GROUND CIRCUIT ............................................ 10 . REMOVAL AND INSTALLATION ....................... 27 .
CONSULT-II Function (BCM) ................................ 12 . POWER SOCKET .................................................... 28 .
CONSULT-II START PROCEDURE ................... 12 . Wiring Diagram -- P/SCKT -- ............................... 28 .
WORK SUPPORT .............................................. 12 . Front Power Socket LH, Rear Cargo Power Socket 29 ...
DATA MONITOR ................................................ 12 . REMOVAL AND INSTALLATION ....................... 29 .
ACTIVE TEST .................................................... 12 . Front Power Socket RH (For Cigarette Lighter),
CONSULT-II Function (IPDM E/R) ........................ 13 . Front Power Socket (Center Armrest), Console
CONSULT-II START PROCEDURE ................... 13 . Power Socket ........................................................ 29.
DATA MONITOR ................................................ 13 . REMOVAL AND INSTALLATION ....................... 29 .
ACTIVE TEST .................................................... 13 . HORN ....................................................................... 30
.
Front Wiper Does Not Operate ............................. 14 . Wiring Diagram -- HORN -- ................................. 30 .
FRONT WIPER STOP POSITION IS INCOR- Removal and Installation ....................................... 31 .
RECT ................................................................. 17
. REMOVAL .......................................................... 31 .
ONLY FRONT WIPER LOW DOES NOT OPER- INSTALLATION .................................................. 31 .
Revision: August 2006 WW-1 2007 Titan
PRECAUTION
PRECAUTION PFP:00011
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS00AE9
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:
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.
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.
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.
Revision: August 2006 WW-2 2007 Titan
FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEM PFP:28810
A
Components Parts and Harness Connector Location EKS00GFR
B
C
D
E
F
G
H
I
WKIA5719E
1. IPDM E/R 2. Air cleaner case 3. Front washer motor connector J
E118, E119, E120, E121, E122, E105
E123, E124
4. Washer fluid reservoir 5. Front wiper motor 6. Combination switch (wiper switch)
WW
E23 M28
7. BCM M18, M20
System Description EKS00AEC L
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 M
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 through 50A fusible link (letter f , 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
G through 10A fuse (No. 59, located in the fuse and relay box)
G to BCM terminal 38.
Ground is supplied
G to BCM terminal 67 and
G to combination switch terminal 12
Revision: August 2006 WW-3 2007 Titan
FRONT WIPER AND WASHER SYSTEM
G through grounds M57, M61 and M79, and
G to IPDM E/R terminals 38 and 59 and
G to front wiper motor terminal 1
G through grounds E9, E15 and E24.
LOW SPEED WIPER OPERATION
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
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.
With the front wiper relay energized, power is supplied
G through front wiper relay
G through front wiper high relay
G through IPDM E/R terminal 32
G to front wiper motor terminal 3.
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-
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
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
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
G through front wiper high relay
G through IPDM E/R terminal 35
G to front wiper motor terminal 2.
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.
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.
Revision: August 2006 WW-4 2007 Titan
FRONT WIPER AND WASHER SYSTEM
AUTO STOP OPERATION
When the wiper arms are not located at the base of the windshield, and the wiper switch is turned OFF, the A
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 6 and 1 are connected.
Ground is supplied B
G to IPDM E/R terminal 43
G through front wiper motor terminal 6
G through front wiper motor terminal 1 C
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 D
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 E
When the ignition switch is in the ON or START position, and the front washer switch is OFF, the front washer
motor is supplied power
G through 10A fuse (No. 9, located in the fuse block J/B) F
G to front 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. G
Combination switch ground is supplied
G to front washer motor terminal 2
H
G through combination switch (wiper switch) terminal 11
G through combination switch (wiper switch) terminal 12
G through grounds M57, M61 and M79. I
With ground supplied, the front washer motor operates.
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 J
then stops.
MIST OPERATION WW
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-4, "LOW SPEED WIPER
OPERATION" . L
If the switch is held in the mist position, low speed operation continues.
FAIL-SAFE FUNCTION
M
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 con-
trol was initiated. (If wiper was in low speed operation just before fail-safe, it continues low speed operation
until ignition switch is turned OFF.)
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.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System Description EKS00AED
Refer to LAN-2, "SYSTEM DESCRIPTION" .
Revision: August 2006 WW-5 2007 Titan
FRONT WIPER AND WASHER SYSTEM
Schematic EKS00AEE
WKWA2261E
Revision: August 2006 WW-6 2007 Titan
FRONT WIPER AND WASHER SYSTEM
Wiring Diagram -- WIPER -- EKS00AEF
A
B
C
D
E
F
G
H
I
J
WW
L
M
WKWA3698E
Revision: August 2006 WW-7 2007 Titan
FRONT WIPER AND WASHER SYSTEM
WKWA3699E
Revision: August 2006 WW-8 2007 Titan
FRONT WIPER AND WASHER SYSTEM
A
B
C
D
E
F
G
H
I
J
WW
L
M
WKWA3700E
Revision: August 2006 WW-9 2007 Titan
FRONT WIPER AND WASHER SYSTEM
Terminals and Reference Values for BCM EKS00AEG
Refer to BCS-12, "Terminals and Reference Values for BCM" .
Terminals and Reference Values for IPDM E/R EKS00AEH
Refer to PG-24, "Terminals and Reference Values for IPDM E/R" .
Work Flow EKS00AEI
1. Confirm the symptom or customer complaint.
2. Understand the system description, refer to WW-3, "System Description" .
3. Perform preliminary inspection, refer to WW-10, "Preliminary Inspection" .
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 EKS00AEJ
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.
Front washer motor Ignition ON or START 9
Front wiper relay Battery 39
Ignition ON or START 59
BCM
Battery f
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.
Terminals Ignition switch position
(+)
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