2011 NISSAN LATIO ignition

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FRONT WIPER AND WASHER SYSTEM
• to front wiper high relay (located in IPDM E/R), and
• to CPU (located in IPDM E/R),
• through 10A fuse [No. 6, located in fuse block (J/B)]
• to BCM terminal 38,
• through 15A fuse [No. 4, located in fuse block (J/B)]
• to combination switch (wiper switch) terminal 14.
Ground is supplied
• to IPDM E/R terminals 39 and 59, and
• to front wiper motor terminal 2
• through grounds E15 and E24
• to BCM terminal 67, and
• to combination switch (wiper switch) terminal 12
• through grounds M57 and M61.
LOW SPEED WIPER OPERATION
When the front combination switch (wiper switch) is in LO position, the BCM detects the low speed wiper ON
signal by means of the BCM combination switch (wiper switch) reading function.
The BCM sends a front wiper request signal (LO) through the CAN communication line
• from BCM terminals 39 and 40
• to IPDM E/R terminals 40 and 41.
When the IPDM E/R receives front wiper request signal (LO) , it turns ON front wiper relay, located in IPDM E/
R, power is supplied
• through IPDM E/R terminal 33 and front wiper high relay and front wiper relay
• to front wiper motor terminal 3.
Ground is supplied
• to front wiper motor terminal 2
• through grounds E15 and E24.
With power and ground is supplied, front wiper motor operates at low speed.
HIGH SPEED WIPER OPERATION
When the front combination switch (wiper switch) is in HI position, the BCM detects a high speed wiper ON
signal by means of the BCM combination switch (wiper switch) reading function.
The BCM sends a front wiper request signal (HI) through the CAN communication line
• from BCM terminals 39 and 40
• to IPDM E/R terminals 40 and 41.
When the IPDM E/R receives front wiper request signal (HI), it turns ON front wiper relay and front wiper high
relay, located in IPDM E/R, power is supplied
• through IPDM E/R terminal 32
• to front wiper motor terminal 5.
Ground is supplied
• to front wiper motor terminal 2
• through grounds E15 and E24.
With power and ground is supplied, front wiper motor operates at high speed.
INTERMITTENT OPERATION
Wiper intermittent operation delay interval is determined from the intermittent wiper dial position inputs. During
each intermittent operation delay interval, the BCM s ends a front wiper request signal to the IPDM E/R to
operate the wipers.
When the ignition switch is in the ON or START positi on, and the front combination switch (wiper switch) is
turned to the intermittent position, the BCM detects a fr ont wiper (intermittent) ON signal by means of the BCM
combination switch (wiper switch) reading function.
BCM then sends front wiper (intermittent) request signal through the CAN communication lines
• from BCM terminals 39 and 40
• to IPDM E/R terminals 40 and 41.
When BCM determines that combination switch (wiper swit ch) status is front wiper intermittent ON, it performs
the following operations.
• BCM detects ON/OFF status of intermittent wiper dial position
• BCM calculates operation interval from wiper dial position.
• BCM sends a front wiper request signal (INT) to IPDM E/R at calculated operation interval.
When IPDM E/R receives the front wiper request signal (INT), it supplies ground to energize the front wiper
relay. It then sends auto-stop signal to the BCM and conducts intermittent front wiper motor operation.
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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
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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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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3. Check continuity between front wiper motor connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
5.CHECK FRONT WIPER CIRCUIT
1. Disconnect IPDM E/R.
2. Check continuity between IPDM E/R connector (A) and front wiper motor connector (B).
3. Check continuity between IPDM E/R connector (A) and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness.
6.CHECK IPDM E/R
With CONSULT-lIl
1. Connect IPDM E/R.
2. Turn ignition switch ON.
3. Select “IPDM E/R” by CONSULT-III, and sele ct “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
5. Touch “LO” or “HI” screen.
6. Check voltage between IPDM E/R connector and ground while front wiper (HI, LO) is operating.
Without CONSULT-llI
1. Connect IPDM E/R.
2. Turn ignition switch ON.
Front wiper mo-
tor connector Te r m i n a l
GroundContinuity
E1 2 Yes
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AB
Continuity
Connector Terminal Connector Terminal
E45 32
E1 5
Ye s
33 3
A GroundContinuity
Connector Terminal
E45 32
No
33
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Te r m i n a l
ConditionVo l ta g e
(Approx.)
(+)
(-)
IPDM E/R
connector Te r m i n a l
E45 33
GroundStopped 0V
LO operation Battery voltage
32 Stopped 0V
HI operation Battery voltage
ALLIA0368ZZ
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FRONT WIPER AND WASHER SYSTEM
3. Start auto active test. Refer to PG-20, "Auto Active Test" .
4. Check voltage between IPDM E/R connector and ground while front wiper (HI, LO) is operating.
OK or NG
OK >> Replace front wiper motor. Refer to WW-22, "Removal and Installation of Front Wiper Drive
Assembly" .
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R" .
Front Wiper Does Not Return to Stop Positi on (After Front Wiper Operates for 10 Sec-
onds, They Stop for 20 Second s, and After Repeating the Operation Five Times, They
Become Inoperative)
INFOID:0000000005929218
CAUTION:
• When auto-stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front wip-
ers, IPDM E/R considers that front wipers are locked, and stops wiper output. That causes this symp-
tom.
• This status can be checked by “DATA MONITOR” of “IPDM E/R” on which “WIPER PROT” item
shows “BLOCK”.
1.CHECK FRONT WIPER STOP SIGNAL
With CONSULT-lIl
Select “IPDM E/R” on CONSULT-III. With “DATA MONITOR”, make sure that “WIP AUTO STOP” turns “ACT
P” - “STOP P” linked with wiper operation.
Without CONSULT-llI
GO TO 2.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R" .
NG >> GO TO 2.
2.CHECK IPDM E/R
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R connector and ground while front wiper motor is stopped and while it is operating.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R" .
NG >> GO TO 3.
3.CHECK FRONT WIPER AUTO STOP CIRCUIT
1. Turn ignition switch OFF.
Te r m i n a l
ConditionVo l ta g e
(Approx.)
(+)
(-)
IPDM E/R
connector Te r m i n a l
E45 33
GroundStopped 0V
LO operation Battery voltage
23 Stopped 0V
HI operation Battery voltage
Te r m i n a l
ConditionVo l ta g e
(Approx.)
(+)
(-)
IPDM E/R
connector Te r m i n a l
E46 38 Ground Wiper stopped 0V
Wiper operating Battery voltage
WKIA5491E
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2. Disconnect IPDM E/R and wiper motor.
3. Check continuity between IPDM E/R connector (A) and front wiper motor connector (B).
4. Check continuity between IPDM E/R harness connector (A) and ground.
OK or NG
OK >> Replace front wiper motor. Refer to WW-22, "Removal and Installation of Front Wiper Drive
Assembly" .
NG >> Repair or replace harness.
Only Front Wiper Low Does Not OperateINFOID:0000000005929219
1.ACTIVE TEST
With CONSULT-lIl
1. Select “IPDM E/R” on CONSUL T-III, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
3. Touch “LO” screen.
Without CONSULT-lIl
Start auto active test. Refer to PG-20, "
Auto Active Test" .
Does front wiper operate normally?
YES >> Refer to LT-65, "Combination Switch Inspection" .
NO >> GO TO 2.
2.CHECK FRONT WIPER MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and front wiper motor.
3. Check continuity between IPDM E/R connector (A) and front wiper motor connector (B).
4. Check continuity between IPDM E/R harness connector (A) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK IPDM E/R
With CONSULT-lIl
AB Continuity
Connector Terminal Connector Terminal
E46 38E1 4Yes
A GroundContinuity
Connector Terminal
E46 38 No
WKIA5492E
AB
Continuity
Connector Terminal Connector Terminal
E45 33E1 3Yes
A GroundContinuity
Connector Terminal
E45 33 No
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FRONT WIPER AND WASHER SYSTEM
1. Connect IPDM E/R.
2. Turn ignition ON.
3. Select “IPDM E/R” on CONSULT-III, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
5. Touch “LO” screen.
6. Check voltage between IPDM E/R connector and ground while front wiper LO is operating.
Without CONSULT-lIl
1. Connect IPDM E/R.
2. Turn ignition ON.
3. Start auto active test. Refer to PG-20, "
Auto Active Test" .
4. Check voltage between IPDM E/R connector and ground while front wiper LO is operating.
OK or NG
OK >> Replace front wiper motor. Refer to WW-22, "Removal and Installation of Front Wiper Drive
Assembly" .
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R" .
Only Front Wiper High Does Not OperateINFOID:0000000005929220
1.ACTIVE TEST
With CONSULT-Ill
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 “HI” screen.
Without CONSULT-lIl
Start auto active test. Refer to PG-20, "
Auto Active Test" .
Does front wiper operate normally?
YES >> Refer to LT-65, "Combination Switch Inspection" .
NO >> GO TO 2.
2.CHECK FRONT WIPER MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector E45 and front wiper motor connector E1.
Te r m i n a l
Continuity
(+)
(-)
IPDM E/R
connector Te r m i n a l
E45 33Ground Battery voltage
Te r m i n a l Continuity
(+)
(-)
IPDM E/R
connector Te r m i n a l
E45 33Ground Battery voltage
WKIA5496E
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