window INFINITI M35 2007 Factory Service Manual

REAR WINDOW DEFOGGER
GW-73
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2007 April2007 M35/M45
With power and ground supplied, door mirror defogger filaments heat and defog the mirror.
CAN Communication System DescriptionNIS0022I
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNIS0022J
Refer to LAN-50, "CAN System Specification Chart" .

GW-74
REAR WINDOW DEFOGGER
Revision: 2007 April2007 M35/M45
SchematicNIS0022K
TIWT1352E

REAR WINDOW DEFOGGER
GW-75
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2007 April2007 M35/M45
Wiring Diagram — DEF — NIS0022L
TIWT2117E

GW-76
REAR WINDOW DEFOGGER
Revision: 2007 April2007 M35/M45
TIWT2039E

REAR WINDOW DEFOGGER
GW-77
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2007 April2007 M35/M45
TIWT2040E

GW-78
REAR WINDOW DEFOGGER
Revision: 2007 April2007 M35/M45
TIWT2041E

REAR WINDOW DEFOGGER
GW-79
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2007 April2007 M35/M45
TIWT2042E

GW-80
REAR WINDOW DEFOGGER
Revision: 2007 April2007 M35/M45
Terminal and Reference Value for BCMNIS0022M
Terminal and Reference Value for IPDM E/RNIS0022N
Te r m i -
nalWire
colorItemSignal
Input/
OutputConditionVoltage (V)
(Approx.)
38 W Ignition switch ON or START Input Ignition switch (ON or START position) Battery voltage
39 L CAN− HInput/
Output——
40 P CAN− LInput/
Output——
42 P Power source (Fuse) Input — Battery voltage
52 B Ground — — 0
55 W Power source (Fusible link) Input — Battery voltage
Te r m i -
nalWire
colorItemSignal
Input/
OutputConditionVoltage (V)
(Approx.)
5 W Battery power supply Output — Battery voltage
6 R Battery power supply Output — Battery voltage
38 B Ground (Power) — — 0
49 L CAN− HInput/
Output——
50 P CAN− LInput/
Output——
51 B Ground (Signal) — — 0
57 GRear window defogger relay
control signalInputWhen rear window defogger switch is ON. 0
When rear window defogger switch is OFF. Battery voltage

REAR WINDOW DEFOGGER
GW-81
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2007 April2007 M35/M45
CONSULT-II Function (BCM)NIS0028Q
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure"
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
CONSULT-II Function (IPDM E/R)NIS0028R
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure"
DATA MONITOR
ACTIVE TEST
BCM diagnostic test itemCheck item diagnostic
test modeContent
REAR DEFOGGERData monitor Displays the input data of BCM in real time.
Active test Gives a drive signal to a load to check the operation.
Monitor item “Operation” Content
REAR DEF SW “ON/OFF”Displays “Press (ON)/others (OFF)” status determined with the rear window defogger
switch.
IGN ON SW “ON/OFF” Displays “IGN (ON)/OFF” status determined with the ignition switch signal.
Test item Content
REAR DEFOGGER Gives a drive signal to the rear window defogger to activate it.
IPDM E/R diagnostic test
itemCheck item diagnostic
test modeContent
REAR DEFOGGERData monitor Displays the input data of BCM in real time.
Active test Gives a drive signal to a load to check the operation.
Monitored Item Description
RR DEF REQ Indicates [ON/OFF] condition of rear window defogger function by IPDM E/R.
Test Item Description
REAR DEFOGGERThis test is able to check rear window defogger operation. Rear window defogger operates when
“ON” on CONSULT-II screen is touched.

GW-82
REAR WINDOW DEFOGGER
Revision: 2007 April2007 M35/M45
Work FlowNIS0022P
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-71, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to GW-82,
"Trouble Diagnoses Symptom Chart" .
4. Does rear window defogger operate normally? YES: GO TO 5, NO: GO TO 3.
5. INSPECTION END.
Trouble Diagnoses Symptom ChartNIS0022Q
Make sure other systems using the signal of the following systems operate normally.
*1: With navigation system
*2: Without navigation systemSymptom Diagnoses / Service procedure Refer to page
Rear window defogger and door mirror defogger do not
operate. 1. Check BCM power supply and ground circuit GW-83
2. Check IPDM E/R auto active test PG-23
3. Check rear window defogger switch circuit GW-84
4. Check rear window defogger power supply circuit GW-84
5. Replace IPDM E/ RPG-31
Rear window defogger does not operate but both of door
mirror defogger operate.1.Check rear window defogger circuit GW-86
2.Check filament GW-92
Both of door mirror defogger does not operated but rear
window defogger operates. Check door mirror defogger power supply circuit GW-87
Driver side door mirror defogger does not operate. Check driver side door mirror defogger circuit GW-89
Passenger side door mirror defogger does not operate. Check passenger side door mirror defogger circuit GW-90
Rear window defogger switch does not light, and rear win-
dow defogger is not displayed on the display.
But rear window defogger operates. Check rear window defogger signal AV- 2 4 9*1
AV- 1 0 8*2
Rear window defogger switch does not light, but rear win-
dow defogger operatesReplace multi-function switchATC-123