NISSAN LATIO 2010 Service Repair Manual

GW-54
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
ABKWA0698GB
Revision: January 20102010 Versa

REAR WINDOW DEFOGGERGW-55
< SERVICE INFORMATION >
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Terminal and Reference Value for BCMINFOID:0000000005396772
Refer to BCS-12, "Terminal and Reference Value for BCM" .
Terminal and Reference Value for IPDM E/RINFOID:0000000005396773
Refer to PG-25, "Terminal and Reference Value for IPDM E/R" .
Work FlowINFOID:0000000005396774
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-51, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to GW-55,
"Trouble Diagnosis Symptom Chart" .
4. Does rear window defogger operate normally? YES: GO TO 5, NO: GO TO 3.
5. Inspection End.
CONSULT-III Function (BCM)INFOID:0000000005396775
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
Trouble Diagnosis Symptom ChartINFOID:0000000005396776
Make sure other systems using the signal of the following systems operate normally.
BCM diagnostic
test item Diagnostic mode
Content
Inspection by part WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the BCM 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. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF DIAGNOSTIC RE- SULT Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.
ECU IDENTIFICATION BCM part number can be read. CONFIGURATION Performs BCM configuration read/write functions.
Monitor item “Operation” Content
REAR DEF SW “ON/OFF” Indicates (ON/OFF) condition of the rear window defogger switch.
IGN ON SW “ON/OFF” Indicates (ON/OFF) condition of the ignition switch signal.
Test item Content
REAR WINDOW DEFOGGER Gives a drive signal to the rear window defogger to activate it.
Revision: January 20102010 Versa

GW-56
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
BCM Power Supply and Ground Circuit Inspection
INFOID:0000000005396777
Refer to BCS-16, "BCM Power Supply and Ground Circuit Inspection" .
Rear Window Defogger Swit ch Circuit InspectionINFOID:0000000005396778
1.CHECK REAR WINDOW DEFOGGER SWITCH OPERATION
With CONSULT-III
Check (“REAR DEF SW”, “IGN ON SW”) in DATA MONITOR mode with CONSULT-III.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Rear window defogger switch check is OK.
NG >> GO TO 2.
2.CHECK REAR WINDOW DEFOGGER SWITCH CIRCUIT HARNESS CONTINUITY
Symptom Diagnoses / Service procedureRefer to page
Rear window defogger and door mirror defoggers do not
operate. (With heated mirrors) 1. BCM power supply and ground circuit check
BCS-16
2. IPDM E/R auto active test check PG-20
3. Rear window defogger switch circuit checkGW-56
4. Replace IPDM E/R PG-28
Rear window defogger does not operate.
(Without heated mirrors) 1. BCM power supply and ground circuit check
BCS-16
2. IPDM E/R auto active test check PG-20
3. Rear window defogger switch circuit checkGW-56
4. Rear window defogger circuit checkGW-57
5. Filament checkGW-61
7. Replace IPDM E/R PG-28
Rear window defogger does not operate but both door mir-
ror defoggers operate. (With heated mirrors) 1. Rear window defogger circuit check
GW-57
2. Filament checkGW-61
Door mirror defoggers do not operate but rear window de-
fogger operates. (With heated mirrors) 1. Door mirror defogger circuit check
GW-60
Rear window defogger switch does not light, but rear win-
dow defogger operates. 1. Replace front air control
MTC-56
When rear window defogger switch is turned to ON
REAR DEF SW: ON
When ignition switch is turned to ON
IGN ON SW : ON
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M18 9 Ground Rear window defogger
switch is pressed
0
Rear window defogger
switch is released 5
WIIA0523E
Revision: January 20102010 Versa

REAR WINDOW DEFOGGERGW-57
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1. Turn ignition switch OFF.
2. Disconnect BCM and front air control.
3. Check continuity between BCM connector M18 (A) terminal 9 and front air control connector M33 (B) terminal 3.
4. Check continuity between BCM connector M18 (A) terminal 9 and ground
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK REAR WINDOW DEFOGGER SWITCH
Check continuity between fr ont air control terminals.
OK or NG
OK >> GO TO 4.
NG >> Replace front air control. Refer to MTC-56, "
Removal
and Installation" .
4.CHECK REAR WINDOW DEFOGGER SWITCH GROUND
Check continuity between front air control connector M33 terminal 8
and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
5.CHECK BCM OUTPUT SIGNAL
1. Connect BCM.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M18 terminal 9 and ground.
OK or NG
OK >> Replace front air control. Refer to MTC-56 .
NG >> Replace BCM. Refer to BCS-19, "
Removal and Installa-
tion of BCM" .
Rear Window Defogger Circuit InspectionINFOID:0000000005396779
1.CHECK FUSES
Check if any of the following fuses in IPDM E/R are blown. 9 - 3
: Continuity should exist.
9 - Ground : Continuity should not exist.
PIIB6479E
Terminals Condition Continuity
38 Rear window defogger switch is ON
(pressed)
Ye s
Rear window defogger switch is OFF
(released) No
PIIB6480E
Connector
Terminal
Ground Continuity
8Y es
M33
PIIB6481E
9 - Ground : Approx. 5V
WIIA0523E
Revision: January 20102010 Versa

GW-58
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear window defogger.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger connector and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear window defogger connector D413 (Hatchback) or B141 (Sedan) terminal 2 and ground.
OK or NG
OK >> Check filament. Refer to GW-61, "Filament Check" .
• If filament is OK.
Check the condition of the harness and the connector.
• If filament is NG. Repair filament. Refer to GW-62, "
Filament Repair" .
NG >> Repair or replace harness.
4.CHECK CONDENSER-1 CIRCUIT
1. Disconnect condenser-1.
2. Check continuity between rear window defogger connector and condenser-1 connector.
3. Check continuity between rear window defogger connector and ground.
Component Parts AmpereFuse No.
IPDM E/R 15A46
IPDM E/R 15A47
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
D412
(Hatch- back)
B140 (Se-
dan) 1Ground Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF 0
LIIA1847E
2 - Ground
: Continuity should exist.
LIIA1848E
AB
Continuity
Connector Terminal Connector Terminal
D412 (Hatchback) B140 (Sedan) 1 D411 (Hatch-
back)
B131 (Sedan) 2Y
es
PIIB6486E
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REAR WINDOW DEFOGGERGW-59
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OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
5.CHECK CONDENSER-1
Check continuity between condenser-1 terminals.
OK or NG
OK >> GO TO 6.
NG >> Replace condenser-1.
6.CHECK CONDENSER-1 HARNESS CONTINUITY
1. Disconnect IPDM E/R.
2. Check continuity between condenser-1 connector and IPDM E/ R connector.
3. Check continuity between condenser-1 connector and ground.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace harness.
7.CHECK REAR WINDOW DEFOGGER RELAY OUTPUT SIGNAL
1. Connect IPDM E/R.
2. Turn ignition switch ON.
3. Check voltage between IPDM E/R connector and ground.
A
GroundContinuity
Connector Terminal
D412 (Hatchback) B140 (Sedan) 1N
o
AB
Continuity
Te r m i n a l Te r m i n a l
12Y es
PIIB6487E
AB
Continuity
Connector Terminal Connector Terminal
D409 (Hatchback) B130 (Sedan) 1
E48 60 Yes
A GroundContinuity
Condenser-1
connector Te r m i n a l
D409 (Hatch- back)
B130 (Sedan) 1N
o
LIIA2644E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
E48 60 Ground Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF 0
LIIA2190E
Revision: January 20102010 Versa

GW-60
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R" .
Door Mirror Defogger Circuit InspectionINFOID:0000000005396780
1.CHECK FUSE
Check if the following fuse in the fuse block (J/B) is blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK HEATED MIRROR RELAY POWER SUPPLY CIRCUIT
1. Disconnect heated mirror relay.
2. Turn ignition switch ON.
3. Check voltage between heated mirror relay connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK HEATED MIRROR RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between heated mirror relay connector M48 terminal 2 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.INSPECTION OF HEATED MIRROR RELAY
Check continuity between heated mirror relay terminals 3 and 5.
OK or NG
OK >> GO TO 5.
NG >> Replace heated mirror relay.
5.CHECK HARNESS CONTINUITY
Component Parts AmpereFuse No.
Fuse block (J/B) 10A5
ConnectorTe r m i n a l s
Voltage (V)
(Approx.)
(+) (-)
M48 1
Ground Battery voltage
3
LIIA2647E
2 - Ground : Continuity should exist.
LIIA2646E
Condition Continuity
12V direct current supply between
terminals 1 and 2 Ye s
No current supply No
SEF145X
Revision: January 20102010 Versa

REAR WINDOW DEFOGGERGW-61
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1. Disconnect door mirror (LH or RH).
2. Check continuity between door mirror (LH or RH) connector and heated mirror relay connector.
3. Check continuity between door mirror (LH or RH) connector and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness.
6.CHECK GROUND CIRCUIT
Check continuity between door mirror (LH or RH) connector and
ground.
OK or NG
OK >> Replace door mirror (LH or RH). Refer to GW-65,
"Removal and Installation" .
NG >> Repair or replace harness.
Filament CheckINFOID:0000000005396781
1. When measuring voltage, wrap tin foil around the top of the neg- ative probe. Then press the foil against the wire with your finger.
Connector Te r m i n a lConnector
Terminal Continuity
AB
D4
(LH) 1M48 5Yes
D107
(RH)
A GroundContinuity
Connector Terminal
D4
(LH) 1N o
D107
(RH)
LIIA2650E
Connector TerminalsContinuity
D4
(LH) 5 Ground Battery voltage
D107
(RH)
LIIA2649E
SEL122R
Revision: January 20102010 Versa

GW-62
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
2. Attach probe circuit tester (in Volt range) to middle portion ofeach filament.
3. If a filament is burned out, circuit tester registers 0 or battery voltage.
4. To locate burned out point, move probe to left and right along fil- ament. Test needle will swing abruptly when probe passes the
point.
Filament RepairINFOID:0000000005396782
REPAIR EQUIPMENT
• Conductive silver composition (DuPont No. 4817 or equivalent)
• Ruler 30 cm (11.8 in) long
• Drawing pen
• Heat gun
• Alcohol
• Cloth
REPAIRING PROCEDURE
1. Wipe broken heat wire and its surrounding area clean with acloth dampened in alcohol.
2. Apply a small amount of conductive silver composition to tip of drawing pen.
Shake silver composition container before use.
3. Place ruler on glass along broken line. Deposit conductive silver composition on break with drawing pen. Slightly overlap existing
heat wire on both sides [preferably 5 mm (0.20 in)] of the break.
SEL263
SEL265
PIIA0215E
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REAR WINDOW DEFOGGERGW-63
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4. After repair has been completed, check repaired wire for conti- nuity. This check should be conducted 10 minutes after silver
composition is deposited.
Do not touch repaired area while test is being conducted.
5. Apply a constant stream of hot air directly to the repaired area for approximately 20 minutes with a heat gun. A minimum dis-
tance of 3 cm (1.2 in) should be kept between repaired area and
hot air outlet.
If a heat gun is not available, let the repaired area dry for 24
hours.
SEL012D
SEL013D
Revision: January 20102010 Versa