2011 NISSAN LATIO Service Repair Manual

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NISSAN LATIO 2011 Service Repair Manual FRONT WIPER AND WASHER SYSTEMWW-7
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AUTO STOP OPERATION
With combination switch (wiper switch) turned OFF, wi per motor will continue to operate u

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AUTO STOP OPERATION
With combination switch (wiper switch) turned OFF, wi per motor will continue to operate until wiper arms reach
windshield base.
When the wiper arms are not located at base of windshield with combination switch (wiper switch) OFF,
ground is supplied
• from IPDM E/R terminal 33
• to front wiper motor terminal 3, in order to continue wiper motor operation at low speed.
When the wiper arms reach base of windshield, front wiper motor terminals 4 and 2 are connected, and
ground is supplied
• to IPDM E/R terminal 38
• through front wiper motor terminals 4 and 2, and
• through grounds E15 and E24.
Then the IPDM E/R sends auto stop operation signal to BCM with CAN communication line.
When the BCM receives auto-stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN com-
munication line.
IPDM E/R stops wiper motor. Wiper motor wi ll then stop wiper arms at the STOP position.
WASHER OPERATION
When the combination switch (wiper switch) is in front wiper washer position, BCM detect front wiper washer
signal by BCM combination switch (wiper switch) reading function. Refer to BCS-4, "
System Description" .
Combination switch (wiper switch) power is supplied
• through combination switch (wiper switch) terminal 14
• to washer motor terminal 1.
Ground is supplied
• to front washer motor terminal 2
• through combination switch (wiper switch) terminal 11, and
• through combination switch (wiper switch) terminal 12
• through grounds M57 and M61.
With ground supplied, front washer motor is operated.
When the BCM detects that front washer motor has operated for 0.4 seconds or longer, BCM operates front
wiper motor for low speed.
When the BCM detects washer switch is OFF, low speed operation cycles approximately 2 times and stops.
MIST OPERATION
When the combination switch (wiper switch) is turned to the mist position, wiper low speed operation cycles
once and then stops.
For additional information about wiper operation under th is condition, refer to "LOW SPEED WIPER OPERA-
TION" .
If switch is held in mist posit ion, low speed operation continues.
FAIL-SAFE FUNCTION
If an abnormality occurs in CAN communications, IPDM E/ R holds the condition just before fail-safe status is
initiated until ignition switch is turned OFF. (If wipers we re operating in LO just before the initiation of fail-safe
status, they continue to operate in LO until ignition switch is turned OFF.)
COMBINATION SWITCH (WIPER SWITCH) READING FUNCTION
Refer to BCS-4, "System Description" .
CAN Communication System DescriptionINFOID:0000000005929208
Refer to LAN-7, "System Description".
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FRONT WIPER AND WASHER SYSTEM
Schematic
INFOID:0000000005929209
ABLWA1005GB
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Wiring Diagram - WIPER -INFOID:0000000005929210
WKWA4991E
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FRONT WIPER AND WASHER SYSTEM
ABLWA1006GB
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ABLWA1007GB
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NISSAN LATIO 2011 Service Repair Manual WW-12
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FRONT WIPER AND WASHER SYSTEM
Terminal and Reference Value for BCM
INFOID:0000000005929211
Refer to BCS-12, "Terminal and Reference Value for BCM" .
Terminal and Referen

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FRONT WIPER AND WASHER SYSTEM
Terminal and Reference Value for BCM
INFOID:0000000005929211
Refer to BCS-12, "Terminal and Reference Value for BCM" .
Terminal and Reference Value for IPDM E/RINFOID:0000000005929212
Refer to PG-25, "Terminal and Reference Value for IPDM E/R" .
How to Proceed with Trouble DiagnosisINFOID:0000000005929213
1. Confirm symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-5, "
System Description" .
3. Perform preliminary check. Refer to WW-12, "
Preliminary Check" .
4. Check symptom and repair or replace malfunctioning parts.
5. Does front wiper and washer operate normally ? If YES, GO TO 6. If NO, GO TO 4.
6. Inspection End.
Preliminary CheckINFOID:0000000005929214
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to BCS-16, "BCM Power Supply and Ground Circuit Inspection"
CONSULT-III Function (BCM)INFOID:0000000005929215
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
WORK SUPPORT
Display Item List
DATA MONITOR
Display Item List
BCM diagnosis position Diagnosis mode Description
WIPER WORK SUPPORT Changes the setting for each function.
DATA MONITOR Displays BCM input data in real time. ACTIVE TEST Device operation can be checked by applying a drive signal to device.
BCM SELF DIAGNOSTIC RESULT BCM performs
self-diagnosis of CAN communication.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
Item Description CONSULT-III Factory setting
WIPER SPEED SETTING Vehicle speed sensing type wiper control mode can be changed in this mode. ON
—
OFF ×
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitor them.
Monitor item Contents
IGN ON SW “ON/OFF”Displays “ignition switch ON (ON)/Other OFF or ACC (OFF)” status as judged from ignition
switch signal.
IGN SW CAN “ON/OFF”Displays “ignition switch ON (ON)/Other OFF or ACC (OFF)” status as judged from CAN com-
munication signal.
FR WIPER HI “ON/OFF”Displays “FRONT WIPER HI (ON)/Other (OFF)” status as judged from combination switch (wip-
er switch) signal.
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ACTIVE TEST
Display Item List
CONSULT-III Function (IPDM E/R)INFOID:0000000005929216
CONSULT-III can display

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ACTIVE TEST
Display Item List
CONSULT-III Function (IPDM E/R)INFOID:0000000005929216
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
DATA MONITOR
All Signals, Main Signals, Selection From Menu
NOTE:
FR WIPER LOW “ON/OFF” Displays “FRONT WIPER LOW (ON)/Other (OFF)” status as judged from combination switch
(wiper switch) signal.
FR WIPER INT “ON/OFF”Displays “FRONT WIPER INT (ON)
/Other (OFF)” status as judged from combination switch
(wiper switch) signal.
FR WASHER SW “ON/OFF” Displays “FRONT WASHER Swit
ch (ON)/Other (OFF)” status as judged from combination
switch (wiper switch) signal.
INT VOLUME “1 - 7”Displays intermittent operation dial position setting (1 - 7) as judged from combination switch
(wiper switch) signal.
FR WIPER STOP “ON/OFF” Displays “Stopped (ON)/Operati ng (OFF)” status as judged from auto-stop signal.
VEHICLE SPEED “km/h” Displays vehicle speed stat us as judged from vehicle speed signal.
RR WIPER ON “ON/OFF”Displays “REAR WIPER (ON)/Other (OFF)” status as judged from combination switch (wiper
switch) signal.
RR WIPER INT “ON/OFF” Displays “REAR WIPER INT (ON)/Other (OFF)” status as judged from combination switch (wip-
er switch) signal.
RR WASHER SW “ON/OFF” Displays “FRONT WASHER Swit
ch (ON)/Other (OFF)” status as judged from combination
switch (wiper switch) signal.
RR WIPER STOP “ON/OFF” Displays “Stopp ed (ON)/Operating (OFF)” status as judged from auto-stop switch 1.
RR WIPER STP2 “ON/OFF” Displays “Stopp ed (ON)/Operating (OFF)” status as judged from auto-stop switch 2.
Monitor item
Contents
Test item Display on CONSULT-III screen Description
Front wiper output FR WIPEROperates front wiper in (INT), (LO), or (HI).
Rear wiper output RR WIPEROperates rear wiper in (ON) or (OFF)
IPDM E/R diagnostic Mode Description
SELF DIAGNOSTIC RESULT 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.
ALL SIGNALS Monitors all items.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Selects items and monitors them.
Item name CONSULT-III
screen display Display or unit Monitor item selection
Description
ALL
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
FR wiper request FR WIP REQ STOP/1LOW/
LOW/HI×× ×
Signal status input from BCM
Wiper auto stop WIP AUTO STOP ACT P/STOP P ×× ×Output status of IPDM E/R
Wiper protection WIP PROT OFF/BLOCK ×× ×Control status of IPDM E/R
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NISSAN LATIO 2011 Service Repair Manual WW-14
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FRONT WIPER AND WASHER SYSTEM
Perform monitoring of IPDM E/R data with ignition switch ON. When ignition switch is at ACC, the display may
not be correct.
ACTIVE TEST
Fro

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FRONT WIPER AND WASHER SYSTEM
Perform monitoring of IPDM E/R data with ignition switch ON. When ignition switch is at ACC, the display may
not be correct.
ACTIVE TEST
Front Wiper Does Not OperateINFOID:0000000005929217
CAUTION:
• During IPDM E/R fail-safe control, front wipers may not operate. Refer to PG-17, "
System Descrip-
tion" in “PG IPDM E/R” to make sure that it is not in fail-safe status.
1.ACTIVE TEST
With CONSULT-lIl
1. Select “IPDM E/R” on CONSULT-III, and sele ct “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
3. Touch “LO” or “HI” screen.
Without CONSULT-lIl
Start up auto active test. Refer to PG-20, "
Auto Active Test" .
Does front wiper operate normally?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK CIRCUIT BETWEEN COMBINATION SWITCH (WIPER SWITCH) AND BCM
With CONSULT-llI
1. Select “BCM” on CONSULT-III, and sele ct “WIPER” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE ” screen. Make sure that “FR WIPER INT”, “FR
WIPER LOW”, and “FR WIPER HI” turn ON-OFF accord ing to combination switch (wiper switch) opera-
tion.
Without CONSULT-lIl
Refer to LT-65, "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Check combination switch (wiper switch). Refer to LT-65, "
Combination Switch Inspection" .
3.CHECK CIRCUIT BETWEEN IPDM E/R AND BCM
Select “BCM” on CONSULT-III, and perform self-diagnosis for “BCM”.
Displayed self
-diagnosis results
NO DTC>>Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
CAN COMM CIRCUIT>>Check CAN communi cation line of BCM. Refer to BCS-18, "
CAN Communication
Inspection Using CONSULT-III (Self-Diagnosis)" .
4.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front wiper motor.
Test item CONSULT-III screen display Description
Front wiper (HI, LO) output FRONT WIPER With a certain operation (OFF, HI ON,
LO ON), front wiper relay (Lo, Hi)
can be operated.
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