ground INFINITI M35 2006 Factory Service Manual

GW-84
REAR WINDOW DEFOGGER
Revision: 2006 January2006 M35/M45
Work FlowNIS0022P
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-73, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to GW-84,
"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. BCM power supply and ground circuit check.GW-85
2. IPDM E/R auto active test checkPG-24
3. Rear window defogger switch circuit checkGW-86
4. Rear window defogger power supply circuit checkGW-86
5. Replace IPDM E/ RPG-31
Rear window defogger does not operate but both of door
mirror defogger operate.1. Rear window defogger circuit checkGW-88
2. Filament checkGW-94
Both of door mirror defogger does not operated but rear
window defogger operates. 1. Door mirror defogger power supply circuit checkGW-89
Driver side door mirror defogger does not operate. 1. Driver side door mirror defogger circuit checkGW-91
Passenger side door mirror defogger does not operate. 1. Passenger side door mirror defogger circuit checkGW-92
Rear window defogger switch does not light, and rear win-
dow defogger is not displayed on the display.
But rear window defogger operates. 1. Rear window defogger signal checkAV-253*1
AV-108*2
Rear window defogger switch does not light, but rear win-
dow defogger operates1. Replace multi-function switchATC-124

REAR WINDOW DEFOGGER
GW-85
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2006 January2006 M35/M45
BCM Power Supply and Ground Circuit CheckNIS0022R
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, when perform the each trouble
diagnosis. Refer to BCS-15, "
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CHECK FUSE
Check 15A fuse [No.1, located in the fuse block (J/B)]
Check 10A fuse [No.21, located in the fuse block (J/B)]
Check 50A fusible link (letter F located in the fuse and fusible link box).
NOTE:
Refer to GW-73, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check BCM power supply circuit for open or short.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector and ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Check BCM ground circuit for open or short.
Terminals
Condition of
ignition switchVoltage (V)
(Approx.) (+)
(–)
BCM connector Terminal
M1 38
GroundON
Battery voltage
M242
OFF
55
PIIB5934E
BCM connector Terminal
GroundContinuity
M2 52 Yes
PIIB5935E

GW-86
REAR WINDOW DEFOGGER
Revision: 2006 January2006 M35/M45
Rear Window Defogger Switch Circuit CheckNIS0022S
1. CHECK REAR WINDOW DEFOGGER SWITCH OPERATION
With CONSULT-II
Check (“REAR DEF SW”, “IGN ON SW”) in DATA MONITOR mode with CONSULT-II.
OK or NG
OK >> Rear window defogger switch is OK.
NG >> GO TO 2.
2. CHECK AV LINE
Check AV line. Refer to AV- 2 5 3
(with navigation system), AV- 1 0 8 (without navigation system).
OK or NG
OK >> Check the condition of harness and connector.
NG >> The diagnosis is continued.
Rear Window Defogger Power Supply Circuit CheckNIS0022T
1. CHECK FUSE
Check 10A fuse [No.12, located in the fuse block (J/B)]
Check 20A fuse (No.75, located in the IPDM E/R)
Check 20A fuse (No.80, located in the IPDM E/R)
NOTE:
Refer to GW-73, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse, refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Remove rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger relay connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between fuse block (J/B) and rear window defogger relay. When rear window defogger switch is turned to ON
REAR DEF SW : ON
When ignition switch is turned to ON
IGN ON SW : ON
PIIA2373E
Terminals
Voltage (V)
(Approx.) (+)
(–) Rear window
defogger relay
connectorTerminal
E361
Ground Battery voltage 3
6
PIIB5994E

REAR WINDOW DEFOGGER
GW-87
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2006 January2006 M35/M45
3. CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay.
OK or NG
OK >> GO TO 4.
NG >> Replace rear window defogger relay.
4. CHECK REAR WINDOW DEFOGGER RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Install rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Rear window defogger power supply circuit is OK.
NG >> GO TO 5.
5. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and rear window defogger relay.
3. Check continuity between IPDM E/R connector and rear window defogger relay connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness.
Terminal
Condition Continuity
Rear window
defogger relay
3512V direct current supply between termi-
nals 1 and 2.Ye s
No current supply No
6712V direct current supply between termi-
nals 1 and 2.Ye s
No current supply No
SEC202B
Terminals
Condition of
rear window
defogger switchVoltage (V)
(Approx.) (+)
(–)
IPDM E/R
connectorTerminal
E9 57 GroundON (pressed) 0
OFF Battery voltage
PIIB5982E
AB
Continuity
IPDM E/R
connectorTerminalRear window
defogger relay
connectorTerminal
E9 57 E36 2 Yes
PIIB5983E

GW-88
REAR WINDOW DEFOGGER
Revision: 2006 January2006 M35/M45
6. CHECK REAR WINDOW DEFOGGER RELAY OUTPUT SIGNAL
1. Connect IPDM E/R connector and rear window defogger relay.
2. Turn ignition switch ON.
3. Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace IPDM E/R.
Rear Window Defogger Circuit CheckNIS0022U
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between rear window defogger connector and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear window defogger connector.
3. Check continuity between rear window defogger connector and ground.
OK or NG
OK >> Check filament. Refer to GW-94, "Filament Check"
If filament is OK, check condition of harness and con-
nector.
If filament is NG, repair filament.
NG >> Repair or replace harness between rear window defog-
ger and ground.
Terminals
Voltage (V)
(Approx.) (+)
(–)
IPDM E/R
connectorTerminal
E9 57 Ground Battery voltage
PIIB5982E
Te r m i n a l s
Condition of
rear window
defogger switchVoltage (V)
(Approx.) (+)
(–) Rear window
defogger
connectorTerminal
B604 1 GroundON Battery voltage
OFF 0
PIIB5984E
Rear window
defogger
connectorTerminal
GroundContinuity
B701 2 Yes
PIIB5985E

GW-90
REAR WINDOW DEFOGGER
Revision: 2006 January2006 M35/M45
2. CHECK POWER SUPPLY CIRCUIT 1
1. Turn ignition switch ON.
2. Check voltage between fuse block (J/B) connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK POWER SUPPLY CIRCUIT 2
Check voltage between fuse block (J/B) connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace fuse block (J/B).
4. CHECK DOOR MIRROR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuse block (J/B) and door mirror connector.
3. Check continuity between fuse block (J/B) connector and door mirror connector.
4. Check continuity between fuse block (J/B) connector and
ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between fuse block (J/B) and malfunctioning door mirror connector.
Terminals
Condition of rear
window defogger
switchVoltage (V)
(Approx.) (+)
(–)
Fuse block
connectorTerminal
E101 2C GroundON Battery voltage
OFF 0
PIIB5993E
Terminals
Condition of rear
window defogger
switchVoltage (V)
(Approx.) (+)
(–)
Fuse block
connectorTerminal
M5 5B GroundON Battery voltage
OFF 0
PIIB5992E
AB
Continuity
Fuse block
connectorTe r m i n a lDoor mirror
connectorTerminal
M5 5BD2 (LH)
D39 (RH)4Yes
A
GroundContinuity
Fuse block connector Terminal
M5 5B No
PIIB5988E

REAR WINDOW DEFOGGER
GW-91
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2006 January2006 M35/M45
5. CHECK GROUND CIRCUIT
Check continuity between door mirror connector and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness.
6. CHECK DOOR MIRROR DEFOGGER
1. Connect door mirror connector.
2. Check door mirror.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace malfunctioning door mirror.
Driver Side Door Mirror Defogger Circuit CheckNIS0022W
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror LH connector.
3. Turn ignition switch ON.
4. Check voltage between door mirror LH connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between fuse block (J/B) and
door mirror LH.
Door mirror connector Terminal
GroundContinuity
D2 (LH)
D39 (RH)8Yes
PIIB5989E
Door mirror connector Terminal Continuity
D2 (LH)
D39 (RH)48 Yes
PIIB5990E
Te r m i n a l s
Condition of rear
window defogger
switchVoltage (V)
(Approx.) (+)
(–)
Door mirror LH
connectorTe r m i n a l
D2 4 GroundON Battery voltage
OFF 0
PIIB5991E

GW-92
REAR WINDOW DEFOGGER
Revision: 2006 January2006 M35/M45
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror LH connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between door mirror LH and
ground.
3. CHECK DOOR MIRROR DEFOGGER
1. Connector door mirror LH connector.
2. Check door mirror LH.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace door mirror LH.
Passenger Side Door Mirror Defogger Circuit Check NIS0022X
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror RH connector.
3. Turn ignition switch ON.
4. Check voltage between door mirror RH connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between fuse block (J/B) and
door mirror RH.
Door mirror LH
connectorTerminal
GroundContinuity
D2 8 Yes
PIIB5989E
Door mirror LH
connectorTerminal Continuity
D2 4 8 Yes
PIIB5990E
Terminals
Condition of rear
window defogger
switchVoltage (V)
(Approx.) (+)
(–)
Door mirror RH
connectorTerminal
D39 4 GroundON Battery voltage
OFF 0
PIIB5991E

REAR WINDOW DEFOGGER
GW-93
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2006 January2006 M35/M45
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror RH connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between door mirror RH and
ground.
3. CHECK DOOR MIRROR DEFOGGER
1. Connector RH door mirror connector.
2. Check door mirror RH.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace door mirror.
Door mirror RH
connectorTerminal
GroundContinuity
D39 8 Yes
PIIB5989E
Door mirror RH
connectorTerminal Continuity
D39 4 8 Yes
PIIB5990E

REVERSE INTERLOCK DOOR MIRROR SYSTEM
GW-97
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2006 January2006 M35/M45
through 10A fuse [No.21, located in the fuse block (J/B)]
to automatic drive positioner control unit terminal 34 and
to driver seat control unit terminal 40.
Ground is supplied
to automatic drive positioner control unit terminals 40 and 48.
through body grounds M16 and M70.
to driver seat control unit terminals 32 and 48.
through body grounds B5, B40 and B131.
to door mirror remote control switch terminal 13
through body grounds M16 and M70.
REVERSE INTERLOCK DOOR MIRROR SYSTEM OPERATION
When the ignition switch is in ON position, A/T control device into R position. Then TCM (in A/T assembly)
detects it and sends the A/T shift position signal to the driver seat control unit via DATA LINE (CAN H,
CAN L).
When selecting either left and right changeover switch, the automatic drive position control unit judges
which door mirror is selected according to the voltage of terminals 2 and 18. And then, it sends the signal
to driver seat control unit via communication signal.
When the driver seat control unit receives the A/T shift position signal and changeover switch signal, it
sends the operation signal to the automatic drive positioner control unit using the communication signal so
that the each mirror sensor voltage stays in a specified value.
Door mirror (RH) selected
Supply the power from terminals 14, 15 and 30 to door mirror (RH) terminals 5, 6 and 7 so that the voltage
of terminals 5 and 21 stays in a specified value. Then, adjust the mirror angle.
Door mirror (LH) selected
Supply the power from terminals 16, 31 and 32 to door mirror (LH) terminals 5, 6 and 7 do that the voltage
of terminals 6 and 22 is the specified value. Then, adjust the mirror angle.
CAN Communication System DescriptionNIS00232
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 UnitNIS00233
Refer to LAN-34, "CAN Communication Unit" .