2010 NISSAN LATIO Service Repair Manual

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Page 2769 of 3745

NISSAN LATIO 2010 Service Repair Manual GW-52
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
Power is supplied at all times
• through 15A fuses (No. 46 and 47, located in the IPDM E/R)
• to rear window defogger relay
• through 10A fuse

GW-52
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
Power is supplied at all times
• through 15A fuses (No. 46 and 47, located in the IPDM E/R)
• to rear window defogger relay
• through 10A fuse [No. 5 (with heated mirrors), located in the fuse block (J/B)]
• to heated mirror relay terminal 3
• through 40A fusible link (letter g , located in the fuse and fusible link box)
• to BCM terminal 70.
With the ignition switch turned to ON or START position, power is supplied
• through ignition relay
• to rear window defogger relay (located in the IPDM E/R)
• through 10A fuse [No. 6, located in the fuse block (J/B)]
• to BCM terminal 38.
Ground is supplied
• to BCM terminal 67 and
• to front air control terminal 8
• through body grounds M57 and M61
• to IPDM E/R terminals 39 and 59
• through body grounds E15 and E24.
When front air control (rear window defogger switch) is turned to ON, ground is supplied
• to BCM terminal 9
• through front air control terminal 3
• through front air control terminal 8
• through body grounds M57 and M61.
Then rear window defogger switch is illuminated.
Then BCM recognizes that rear window defogger switch is turned to ON.
Then it sends rear window defogger switch signals to IPDM E/R via CAN communication (CAN-H, CAN-L).
When IPDM E/R receives rear window defogger switch signals, ground is supplied
• to rear window defogger relay (located in the IPDM E/R)
• through IPDM E/R terminals 39 and 59
• through body grounds E15 and E24
Then rear window defogger relay is energized.
With power and ground supplied, rear window def ogger filaments heat and defog the rear window.
When rear window defogger relay is turned to ON (with heated mirrors), power is supplied
• through heated mirror relay terminal 5
• to door mirror (LH and RH) terminal 1.
Door mirror (LH and RH) is grounded through body grounds M57 and M61.
With power and ground supplied, rear window defogger filaments heat and defog the rear window and door
mirror filaments heat and defog the mirrors.
CAN Communication System DescriptionINFOID:0000000005396770
Refer to LAN-7, "System Description".
Revision: January 20102010 Versa

Page 2770 of 3745

NISSAN LATIO 2010 Service Repair Manual REAR WINDOW DEFOGGERGW-53
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
GW
N
O P
Wiring Diagram - DEF -INFOID:0000000005396771
ABKWA0697GB
Revision: January 20102010 Versa

Page 2771 of 3745

NISSAN LATIO 2010 Service Repair Manual GW-54
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
ABKWA0698GB
Revision: January 20102010 Versa

Page 2772 of 3745

NISSAN LATIO 2010 Service Repair Manual REAR WINDOW DEFOGGERGW-55
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
GW
N
O P
Terminal and Reference Value for BCMINFOID:0000000005396772
Refer to BCS-12, "Terminal and Reference Value for BCM" .

REAR WINDOW DEFOGGERGW-55
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
GW
N
O P
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

Page 2773 of 3745

NISSAN LATIO 2010 Service Repair Manual 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 Wind

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

Page 2774 of 3745

NISSAN LATIO 2010 Service Repair Manual REAR WINDOW DEFOGGERGW-57
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
GW
N
O P
1. Turn ignition switch OFF.
2. Disconnect BCM and front air control.
3. Check continuity between BCM connector M18 (A

Page 2775 of 3745

NISSAN LATIO 2010 Service Repair Manual 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 PO

Page 2776 of 3745

NISSAN LATIO 2010 Service Repair Manual REAR WINDOW DEFOGGERGW-59
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
GW
N
O P
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
5.CHECK CONDENSER-1
Check continuity between condenser-1 term

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