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K ELECTRICAL

SECTION
WIPER, WASHER & HORN
WW B

E
CONTENTS
PRECAUTION ........................................................... 3 . ONLY FRONT WIPER LO DOES NOT OPERATE 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 INT DOES NOT OPER-
SIONER" ................................................................. 3
. ATE ..................................................................... 21
. G
FRONT WIPER AND WASHER SYSTEM ................. 4 . FRONT WIPER INTERMITTENT OPERATION
Components Parts and Harness Connector Loca- SWITCH POSITION CANNOT BE ADJUSTED... 22
tion .......................................................................... 4
. WIPERS DO NOT WIPE WHEN FRONT
H
System Description ................................................. 4 . WASHER OPERATES ....................................... 22 .
LO SPEED WIPER OPERATION ........................ 5 . FRONT WIPERS OPERATE FOR 10 SECONDS,
HI SPEED WIPER OPERATION .......................... 5 . STOP FOR 20 SECONDS, AND AFTER
INT (INTERMITTENT) OPERATION .................... 5 . REPEATING THIS OPERATION FIVE TIMES, I
AUTO STOP OPERATION ................................... 6 . THEY BECOME INOPERATIVE ........................ 22 .
FRONT WASHER OPERATION .......................... 6 . Removal and Installation ....................................... 24 .
MIST OPERATION ............................................... 6 . FRONT WIPER ARMS ....................................... 24 . J
FAIL-SAFE FUNCTION ........................................ 6 . WIPER MOTOR AND LINKAGE ........................ 25 .
COMBINATION SWITCH READING FUNCTION 6 ..... WASHER NOZZLES .......................................... 26 .
CAN Communication System Description ............... 7 . WIPER AND WASHER SWITCH ....................... 26 .
WW
Schematic ............................................................... 8
. WASHER FLUID RESERVOIR .......................... 27 .
Wiring Diagram -- WIPER -- ................................. 9 . FRONT AND REAR WASHER MOTOR ............. 28 .
Terminals and Reference Values for BCM ............ 12 . WASHER FLUID LEVEL SENSOR .................... 28 .
Terminals and Reference Values for IPDM E/R .... 12 . Washer Hose Layout ............................................. 29 . L
Work Flow ............................................................. 12. Washer Nozzle Adjustment ................................... 29 .
Preliminary Check ................................................. 12 . REAR WIPER AND WASHER SYSTEM ................. 30 .
BCM POWER SUPPLY AND GROUND CIRCUIT Components Parts and Harness Connector Loca- M
CHECK ............................................................... 12
. tion ......................................................................... 30
.
BCM POWER SUPPLY AND GROUND CIRCUIT System Description ................................................ 30 .
CHECK ............................................................... 12
. REAR WIPER OPERATION ............................... 30 .
CONSULT-II Function (IPDM E/R) ........................ 12 . INTERMITTENT OPERATION ........................... 30 .
CONSULT-II START PROCEDURE ................... 12 . AUTO STOP OPERATION ................................. 31 .
DATA MONITOR ................................................ 12 . REAR WASHER OPERATION ........................... 31 .
ACTIVE TEST .................................................... 13 . BCM WIPER SWITCH READING FUNCTION ... 31
CONSULT-II Function (BCM) ................................ 13 . Wiring Diagram -- WIP/R -- ................................. 32 .
CONSULT-II START PROCEDURE ................... 13 . Terminals and Reference Values for BCM ............. 34 .
WORK SUPPORT .............................................. 13 . How to Proceed With Trouble Diagnosis ............... 34 .
DATA MONITOR ................................................ 13 . Preliminary Check ................................................. 34 .
ACTIVE TEST .................................................... 14 . BCM POWER SUPPLY AND GROUND CIRCUIT
Trouble Diagnosis ................................................. 14 . CHECK ............................................................... 34.
FRONT WIPER DOES NOT OPERATE ............ 14 . CONSULT-II Function (BCM) ................................ 34 .
FRONT WIPER STOP POSITION IS INCOR- CONSULT-II START PROCEDURE ................... 34 .
RECT ................................................................. 17
. DATA MONITOR ................................................ 34 .

Revision: September 2006 WW-1 2007 Xterra
ACTIVE TEST .................................................... 35
. POWER SOCKET ....................................................44 .
Rear Wiper Does Not Operate .............................. 35 . Wiring Diagram -- P/SCKT -- ...............................44 .
Rear Wiper Stop Position Is Incorrect .................... 37 . Removal and Installation ........................................45 .
Only Rear Wiper Does Not Operate ...................... 38 . LOWER FRONT POWER SOCKET AND REAR
Only Rear Wiper Intermittent Does Not Operate ... 38 CARGO POWER SOCKET ................................45 .
Wiper Does Not Wipe When Rear Washer Operates 38 ... UPPER FRONT POWER SOCKET (FOR CIG-
Removal and Installation ....................................... 39
. ARETTE LIGHTER) AND CONSOLE POWER
REAR WIPER ARM ............................................ 39
. SOCKET .............................................................45 .
REAR WIPER ARM ADJUSTMENT ................... 39 . HORN .......................................................................46
.
REAR WIPER MOTOR ...................................... 40 . Wiring Diagram -- HORN -- .................................46 .
REAR WASHER HOSE LAYOUT ....................... 41 . Removal and Installation ........................................47 .
REAR WASHER NOZZLE .................................. 42 . HORN (SINGLE) .................................................47 .
REAR WASHER NOZZLE ADJUSTMENT ......... 42 . HORN (DUAL) ....................................................47 .
FRONT AND REAR WASHER MOTOR ............. 43 .
WIPER AND WASHER SWITCH ....................... 43 .
WASHER FLUID RESERVOIR .......................... 43 .

Revision: September 2006 WW-2 2007 Xterra
PRECAUTION

PRECAUTION PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS00KCL

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

Revision: September 2006 WW-3 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

FRONT WIPER AND WASHER SYSTEM PFP:28810

Components Parts and Harness Connector Location EKS00HMG

WKIA5015E

1. IPDM E/R E121, E122, E124 2. BCM M18, M20 (view with lower instrument 3. Data link connector
panel LH removed)
4. Front and rear washer motor connector E105 5. Washer fluid reservoir 6. Front wiper motor E23
(view with front fender protector RH removed)
7. Combination switch M28

System Description EKS00DEI

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
G through 50A fusible link (letter g , located in the fuse and fusible link box)
G to BCM terminal 70
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 to ignition relay, located in the IPDM E/R
G through 10A fuse [No. 15, located in the fuse block (J/B)]
G to combination switch terminal 2, and
G through 10A fuse [No. 1, located in the fuse block (J/B)]
G to BCM terminal 38.
Revision: September 2006 WW-4 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

Ground is supplied
G to BCM terminal 67 A
G to combination switch terminal 9
G through grounds M57, M61 and M79
B
G to IPDM E/R terminals 38 and 59
G to front wiper motor terminal 2
G through grounds E9, E15 and E24. C
LO 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 D
function.
The BCM then sends a front wiper LO request signal over CAN communication lines
G from BCM terminals 39 and 40 E
G to IPDM E/R terminals 39 and 40.
When IPDM E/R receives front wiper LO request signal, it supplies ground to energize the front wiper relay.
With the front wiper relay energized, power is supplied F
G through front wiper relay
G to front wiper high relay
G through IPDM E/R terminal 32 G
G to front wiper motor terminal 1.
With power and ground supplied, the front wiper motor operates at low speed.
H
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 I
function.
The BCM then sends a front wiper HI request signal over CAN communication lines
G from BCM terminals 39 and 40
J
G to IPDM E/R terminals 39 and 40.
When the IPDM E/R receives a front wiper HI request signal, it supplies ground to energize the front wiper and
the front wiper high relays.
WW
With the front wiper and the front wiper high relays energized, power is supplied
G through front wiper relay
G to front wiper high relay L
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. M
INT (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 INT request through the combination switch (wiper switch) reading
function.
The BCM then sends a front wiper INT 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.

Revision: September 2006 WW-5 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

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 INT request signal, 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, "LO 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.)
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" .

Revision: September 2006 WW-6 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

CAN Communication System Description EKS00DEJ

A
Refer to LAN-4, "SYSTEM DESCRIPTION" .

Revision: September 2006 WW-7 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

Schematic EKS00DEK

WKWA5467E

Revision: September 2006 WW-8 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

Wiring Diagram -- WIPER -- EKS00DEL

WKWA2464E

Revision: September 2006 WW-9 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

WKWA5368E

Revision: September 2006 WW-10 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

WKWA5468E

Revision: September 2006 WW-11 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

Terminals and Reference Values for BCM EKS00HMH

Refer to BCS-12, "Terminals and Reference Values for BCM" .
Terminals and Reference Values for IPDM E/R EKS00DEN

Refer to PG-27, "Terminals and Reference Values for IPDM E/R" .
Work Flow EKS00DEO

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-12, "Preliminary Check" .
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 Check EKS00DEP

BCM POWER SUPPLY AND GROUND CIRCUIT CHECK
Refer to BCS-16, "BCM Power Supply and Ground Circuit Check" .
IPDM E/R POWER/GROUND CIRCUIT INSPECTION
Refer to PG-29, "IPDM E/R Power/Ground Circuit Inspection" .
CONSULT-II Function (IPDM E/R) EKS00DER

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
IPDM E/R diagnostic Mode Description
SELF-DIAG RESULTS Displays IPDM E/R self-diagnosis results.
DATA MONITOR Displays IPDM E/R input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.

CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .

DATA MONITOR
ALL SIGNALS Monitors all the items.
MAIN SIGNALS Monitors predetermined items.
SELECTION FROM MENU Selects and monitors the individual item selected.

All Signals, Main Signals, Selection From Menu
Monitor item selection
CONSULT-II
Item name Display or unit ALL MAIN SELECTION Description
screen display
SIGNALS SIGNALS FROM MENU
Front wiper
FR WIP REQ STOP/1LO/LO/HI x x x Signal status input from BCM.
request
Wiper auto stop WIP AUTO STOP ACT P/STOP P x x x Output status of IPDM E/R.
Wiper protection WIP PROT OFF/LS/HS/BLOCK x x x Control status of IPDM E/R.

NOTE:
Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the dis-
play may not be correct.

Revision: September 2006 WW-12 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

ACTIVE TEST
Display Item List A
CONSULT-II
Test item Description
screen display
B
Front wiper (HI, LO) output FRONT WIPER With a certain operation (OFF, HI, LO) front wiper relays can be operated.

CONSULT-II Function (BCM) EKS00HMI

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following. C

BCM diagnostic
Diagnostic mode Description
test item
D
Supports inspections and adjustments. Commands are transmitted to the BCM
WORK SUPPORT for setting the status suitable for required operation, input/output signals are
received from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time. E
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
Inspection by part
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
F
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions. G

CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" . H

WORK SUPPORT
Work Support Setting Item I
Item Description CONSULT-II
When wiper switch is at INTERMITTENT, front wiper intermittent
WIPER SPEED SETTING time can be selected according to vehicle speed. ON/OFF J
G ON (Operated)/OFF (Not operated)

DATA MONITOR WW

ALL SIGNALS Monitors all the items.
SELECTION FROM MENU Selects and monitors the individual item selected. L

Display Item List
Monitor item name M
Contents
"OPERATION OR UNIT"
IGN ON SW "ON/OFF" Displays "IGN Position (ON)/OFF, ACC Position (OFF)" status as judged from ignition switch signal.
Displays "IGN switch ON (ON)/Other OFF or ACC (OFF)" status as judged from CAN communica-
IGN SW CAN "ON/OFF"
tions.
FR WIPER HI "ON/OFF" Displays "Front Wiper HI (ON)/Other (OFF)" status as judged from wiper switch signal.
FR WIPER LOW "ON/OFF" Displays "Front Wiper LOW (ON)/Other (OFF)" status as judged from wiper switch signal.
FR WIPER INT "ON/OFF" Displays "Front Wiper INT (ON)/Other (OFF)" status as judged from wiper switch signal.
FR WASHER SW "ON/OFF" Displays "Front Washer Switch (ON)/Other (OFF)" status as judged from wiper switch signal.
INT VOLUME (1 - 7) Displays intermittent operation dial position setting (1 - 7) as judged from wiper switch signal.
FR WIPER STOP "ON/OFF" Displays "Stopped (ON)/Operating (OFF)" status as judged from the auto stop signal.
VEHICLE SPEED "0.0 km/h" Displays vehicle speed as received from CAN communication.

Revision: September 2006 WW-13 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

ACTIVE TEST
Display Item List
Display on CONSULT-II
Test item Description
screen
Front wiper HI output FR WIPER (HI) Front wiper HI can be operated by any ON-OFF operation.
Front wiper LO output FR WIPER (LO) Front wiper LO can be operated by any ON-OFF operation.
Front wiper INT output FR WIPER (INT) Front wiper INT can be operated by any ON-OFF operation.

Trouble Diagnosis EKS00DES

FRONT WIPER DOES NOT OPERATE
CAUTION:
During IPDM E/R fail-safe control, front wipers may not operate. Refer to PG-18, "CAN COMMUNICA-
TION LINE CONTROL" to make sure that it is not in fail-safe status.
Inspection Procedure
1. CHECK IPDM E/R TO FRONT WIPERS
With CONSULT-II
1. Select "IPDM E/R" with CONSULT-II, and select "ACTIVE
TEST" on "SELECT DIAG MODE" screen.
2. Select "FRONT WIPER" on "SELECT TEST ITEM" screen.
Without CONSULT-II
1. Turn on front wipers using auto active test. Refer to PG-23,
"Auto Active Test" .
2. Confirm front wiper operation.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2. SKIA3486E

Revision: September 2006 WW-14 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

2. IPDM E/R TO FRONT WIPERS CONTINUITY INSPECTION A
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and front wiper motor.
3. Check continuity between IPDM E/R connectors E121, E122 B
and front wiper motor connector E23.
Connector Terminals Connector Terminals Continuity
C
32 1
E121
35 E23 4 Yes
E122 43 5 D
WKIA3193E

4. Check continuity between IPDM E/R connectors E121, E122 E
and ground.
Connector Terminals Continuity
F
32
E121
35 Ground No
E122 43 G

WKIA1424E H

5. Check continuity between IPDM E/R connectors E122, E124
and ground. I
Connector Terminals Continuity
E122 38
Ground Yes J
E124 59

WKIA1425E

L
6. Check continuity between front wiper motor connector E23 ter-
minal and ground.
Connector Terminal Continuity M
E23 2 Ground Yes

OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.

WKIA3194E

Revision: September 2006 WW-15 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

3. IPDM E/R INSPECTION
With CONSULT-II
1. Select "IPDM E/R" with CONSULT-II, and select "ACTIVE
TEST" on "SELECT DIAG MODE" screen.
2. Select "FRONT WIPER" on "SELECT TEST ITEM" screen.
Without CONSULT-II
Turn on front wipers using the auto active test. Refer to PG-23, "Auto
Active Test" .

SKIA3486E

When front wiper relay, and front wiper high relay are operating,
check voltage between IPDM E/R connector terminals and ground.
Terminals Voltage (V)
Connector Condition
(+) (-) (Approx.)

Stopped 0
32
LO operation Battery voltage
E121 Ground
Stopped 0
35
HI operation Battery voltage
WKIA1427E
OK or NG
OK >> Replace front wiper motor. Refer to WW-25, "WIPER MOTOR AND LINKAGE" .
NG >> Replace IPDM E/R. Refer to PG-32, "Removal and Installation of IPDM E/R" .

4. CHECK COMBINATION SWITCH TO BCM
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check
that "FR WIPER INT", "FR WIPER LOW" and "FR WIPER HI" turn
ON-OFF according to operation of wiper switch.
OK or NG
OK >> GO TO 5.
NG >> Check wiper switch. Refer to BCS-3, "COMBINATION
SWITCH READING FUNCTION" .

WKIA1018E

5. COMBINATION SWITCH TO BCM CONTINUITY INSPECTION
Select "BCM" on CONSULT-II. Carry out self-diagnosis of BCM.
Displayed self-diagnosis results
NO DTC>> Replace the BCM. Refer to BCS-25, "Removal and
Installation of BCM" .
CAN COMM CIRCUIT>> Check CAN communication line of BCM.
GO TO BCS-18, "CAN Communication Inspection Using
CONSULT-II (Self-Diagnosis)" .

SKIA1039E

Revision: September 2006 WW-16 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

FRONT WIPER STOP POSITION IS INCORRECT
Inspection Procedure A
1. CHECK IPDM E/R TO FRONT WIPER MOTOR
With CONSULT-II B
Select "IPDM E/R" with CONSULT-II. With data monitor, confirm that
"WIP AUTO STOP" changes from "ACT P" to "STOP P" according to
wiper operation. C
Without CONSULT-II
GO TO 2.
OK or NG D
OK >> Replace IPDM E/R. Refer to PG-32, "Removal and
Installation of IPDM E/R" .
NG >> GO TO 2. E
SKIA5301E

2. IPDM E/R TO FRONT WIPER MOTOR CONTINUITY INSPECTION F
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and front wiper motor.
G
3. Check continuity between IPDM E/R connector E122 and front
wiper motor connector E23.
Connector Terminal Connector Terminal Continuity H
E122 43 E23 5 Yes

WKIA3195E

J
4. Check continuity between IPDM E/R connector and ground.
Connector Terminals Continuity
E122 43 Ground No WW

M
WKIA1429E

5. Check continuity between front wiper motor connector and
ground.
Connector Terminals Continuity
E23 2 Ground Yes

OK or NG
OK >> GO TO 3.
NG >> G Check for short circuit or open circuit in harness
between IPDM E/R and front wiper motor.
G Check for open circuit in harness between front wiper
WKIA3194E
motor and ground.

Revision: September 2006 WW-17 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

3. IPDM E/R INSPECTION
With CONSULT-II
1. Connect IPDM E/R and front wiper motor.
2. Select "LO" on "ACTIVE TEST" screen.
Without CONSULT-II
1. Connect IPDM E/R and front wiper motor.
2. Turn on front wipers using the auto active test. Refer to PG-23,
"Auto Active Test" .

SKIA3486E

When front wipers are operating and when stopped, measure volt-
age between IPDM E/R connector and ground.
Terminals Voltage (V)
Connector Condition
(+) (-) (Approx.)

Battery
Wiper operating
E122 43 Ground voltage
Wiper stopped 0V

OK or NG
OK >> Replace IPDM E/R. Refer to PG-32, "Removal and WKIA1431E

Installation of IPDM E/R" .
NG >> Replace front wiper motor. Refer to WW-25, "WIPER MOTOR AND LINKAGE" .
ONLY FRONT WIPER LO DOES NOT OPERATE
Inspection Procedure
1. CHECK IPDM E/R TO FRONT WIPERS
With CONSULT-II
1. Select "IPDM E/R" with CONSULT-II, and select "ACTIVE
TEST" on "SELECT DIAG MODE" screen.
2. Select "FRONT WIPER" on "SELECT TEST ITEM" screen.
3. Select "LO" on "ACTIVE TEST" screen.
4. Confirm front wiper low operation.
Without CONSULT-II
1. Turn on front wipers using auto active test. Refer to PG-23,
"Auto Active Test" .
2. Confirm front wiper low operation.
SKIA3486E
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.

Revision: September 2006 WW-18 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

2. IPDM E/R INSPECTION A
With CONSULT-II
Select "LO" on "ACTIVE TEST" screen.
Without CONSULT-II B
Turn on front wipers using the auto active test. Refer to PG-23, "Auto
Active Test" .
C

SKIA3486E

E
When front wiper relay is operating, check voltage between IPDM E/
R connector and ground.
F
Terminals Voltage (V)
Connector Condition
(+) (-) (Approx.)

Battery G
E121 32 Ground Wiper operating
voltage

OK or NG
OK >> GO TO 3. H
NG >> Replace IPDM E/R. Refer to PG-32, "Removal and WKIA3759E
Installation of IPDM E/R" .
I
3. IPDM E/R TO FRONT WIPERS CIRCUIT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and front wiper motor. J
3. Check continuity between IPDM E/R connector E121 and front
wiper motor connector E23.
WW
Connector Terminal Connector Terminal Continuity
E121 32 E23 1 Yes
OK or NG L
OK >> Replace the wiper motor. Refer to WW-25, "WIPER
MOTOR AND LINKAGE" . WKIA3197E

NG >> Repair or replace harness. M

4. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check
that "FR WIPER LO" turns ON-OFF according to operation of wiper
switch.
OK or NG
OK >> Replace BCM. Refer to BCS-25, "Removal and Installa-
tion of BCM" .
NG >> Replace wiper switch. Refer to WW-26, "WIPER AND
WASHER SWITCH" .

WKIA1018E

Revision: September 2006 WW-19 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

ONLY FRONT WIPER HI DOES NOT OPERATE
Inspection Procedure
1. CHECK IPDM E/R TO FRONT WIPERS
With CONSULT-II
1. Select "IPDM E/R" with CONSULT-II, and select "ACTIVE
TEST" on "SELECT DIAG MODE" screen.
2. Select "FRONT WIPER" on "SELECT TEST ITEM" screen.
3. Select "HI" on "ACTIVE TEST" screen.
4. Confirm front wiper high operation.
Without CONSULT-II
1. Turn on front wipers using auto active test. Refer to PG-23,
"Auto Active Test" .
2. Confirm front wiper operation.
SKIA3486E
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.

2. IPDM E/R INSPECTION
With CONSULT-II
Select "HI" on "ACTIVE TEST" screen.
Without CONSULT-II
Turn on front wipers using the auto active test. Refer to PG-23, "Auto
Active Test" .

SKIA3486E

When front wiper relay high is operating, check voltage between
IPDM E/R connector and ground.
Voltage (V)
Connector Terminals Condition
(Approx.)
Battery
E121 35 Ground Wiper operating
voltage

OK or NG
OK >> GO TO 3.
NG >> Replace IPDM E/R. Refer to PG-32, "Removal and
Installation of IPDM E/R" . WKIA3760E

Revision: September 2006 WW-20 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

3. IPDM E/R TO FRONT WIPERS CIRCUIT INSPECTION A
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front wiper motor connec-
tor. B
3. Check continuity between IPDM E/R E121 connector and front
wiper motor connector E23.
C
Connector Terminal Connector Terminal Continuity
E121 35 E23 4 Yes

OK or NG D
OK >> Replace the wiper motor. Refer to WW-25, "WIPER WKIA3199E

MOTOR AND LINKAGE" .
NG >> Repair harness or connector. E

4. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check F
that "FR WIPER HI" turns ON-OFF according to operation of wiper
switch.
OK or NG G
OK >> Replace BCM. Refer to BCS-25, "Removal and Installa-
tion of BCM" .
NG >> Replace wiper switch. Refer to WW-26, "WIPER AND H
WASHER SWITCH" .

WKIA1018E
I

ONLY FRONT WIPER INT DOES NOT OPERATE
Inspection Procedure J
1. CHECK COMBINATION SWITCH TO BCM
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check
WW
that "FR WIPER INT" turns ON-OFF according to operation of wiper
switch.
OK or NG
L
OK >> Replace BCM. Refer to BCS-25, "Removal and Installa-
tion of BCM" .
NG >> Replace wiper switch. Refer to WW-26, "WIPER AND
WASHER SWITCH" . M

WKIA1018E

Revision: September 2006 WW-21 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

FRONT WIPER INTERMITTENT OPERATION SWITCH POSITION CANNOT BE ADJUSTED
Inspection Procedure
1. CHECK COMBINATION SWITCH TO BCM
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check
that "INT VOLUME" changes in order from 1 to 7 according to opera-
tion of the intermittent switch dial position.
OK or NG
OK >> Replace BCM. Refer to BCS-25, "Removal and Installa-
tion of BCM" .
NG >> Replace wiper switch. Refer to WW-26, "WIPER AND
WASHER SWITCH" .

WKIA1018E

WIPERS DO NOT WIPE WHEN FRONT WASHER OPERATES
Inspection Procedure
1. CHECK COMBINATION SWITCH TO BCM
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check
that "FR WASHER SW" turns ON-OFF according to operation of
front washer switch.
OK or NG
OK >> Replace BCM. Refer to BCS-25, "Removal and Installa-
tion of BCM" .
NG >> Replace wiper switch. Refer to WW-26, "WIPER AND
WASHER SWITCH" .

WKIA1018E

FRONT WIPERS OPERATE FOR 10 SECONDS, STOP FOR 20 SECONDS, AND AFTER
REPEATING THIS OPERATION FIVE TIMES, THEY BECOME INOPERATIVE
CAUTION:
G When auto stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front
wipers, IPDM E/R considers front wipers locked and stops wiper output, which causes this symp-
tom.
G This status can be checked by using IPDM E/R "DATA MONITOR". Under this condition, "WIP
PROT" reads "BLOCK".
Inspection Procedure
1. CHECK IPDM E/R TO FRONT WIPER MOTOR
With CONSULT-II
Select "IPDM E/R" with CONSULT-II. With data monitor, confirm that
"WIP AUTO STOP" changes from "ACT P" to "STOP P" according to
wiper operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-32, "Removal and
Installation of IPDM E/R" .
NG >> GO TO 2.

SKIA5301E

Revision: September 2006 WW-22 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

2. IPDM E/R TO FRONT WIPER MOTOR CONTINUITY INSPECTION A
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and front wiper motor.
3. Check continuity between IPDM E/R connector E122 and front B
wiper motor connector E23.
Connector Terminal Connector Terminal Continuity
C
E122 43 E23 5 Yes

D
WKIA3195E

4. Check continuity between IPDM E/R connector and ground. E

Connector Terminals Continuity
E122 43 Ground No
F
OK or NG
OK >> Connect connectors. GO TO 3.
NG >> Repair harness or connector. G

WKIA1429E H

3. IPDM E/R TO FRONT WIPER MOTOR GROUND CONTINUITY INSPECTION
I
While front wiper motor is stopped and while operating, measure
voltage between IPDM E/R harness connector and ground.
Terminals Voltage (V) J
Connector Condition
(+) (-) (Approx.)

Battery
Wiper operating
E122 43 Ground voltage WW
Wiper stopped 0V

OK or NG
L
OK >> Replace IPDM E/R. Refer to PG-32, "Removal and WKIA1431E

Installation of IPDM E/R" .
NG >> Replace front wiper motor. Refer to WW-25, "WIPER MOTOR AND LINKAGE" .
M

Revision: September 2006 WW-23 2007 Xterra
FRONT WIPER AND WASHER SYSTEM

Removal and Installation EKS00DET

FRONT WIPER ARMS
Removal
1. Remove wiper arm covers and wiper arm nuts.
2. Remove front RH wiper arm and front LH wiper arm.
3. Remove front RH blade assembly and front LH blade assembly.
Installation
1. Operate wiper motor one full cycle, then turn "OFF" (Auto Stop).
2. Clean up the pivot area as shown. This will reduce possibility of
wiper arm looseness.

SEL024J

3. Install front RH blade assembly and front LH blade assembly.
4. Install front RH wiper arm and front LH wiper arm.
5. Ensure that wiper blades stop within proper clearance. Refer to WW-24, "FRONT WIPER ARM ADJUST-
MENT" .
6. Tighten wiper arm nuts to specified torque, and install wiper arm covers.
Front wiper arm nuts : 23.6 N

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