Door lock control INFINITI FX35 2004 Owner's Guide

BL-172
BACK DOOR AUTO CLOSURE SYSTEM
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS CONTINUITY
1. Disconnect back door closure control unit and back door closure motor connector.
2. Check continuity between back door closure control unit con-
nector D106 terminal 7 and back door closure motor connector
D109 terminal 6.
3. Check continuity between back door closure control unit con-
nector D106 terminal 7 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
Check continuity between back door closure motor connector D109
terminal 8 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK BACK DOOR CLOSURE CONTROL UNIT OUTPUT SIGNAL
1. Connect back door closure control unit connector.
2. Check voltage between back door closure control unit connector
D106 terminal 7 and ground.
OK or NG
OK >> Replace back door lock assembly.
NG >> Replace back door closure control unit.7 (OR) – 6 (OR) : Continuity should exist.
7 (OR) – Ground : Continuity should not exist.
PIIA6169E
8 (B) – Ground : Continuity should exist.
PIIA6170E
Back door is closed
7 (OR) – Ground : Battery voltage
PIIA6172E

BL-174
BACK DOOR AUTO CLOSURE SYSTEM
Revision: 2004 November 2004 FX35/FX45
4. CHECK BACK DOOR CLOSURE CONTROL UNIT OUTPUT SIGNAL
1. Connect back door closure control unit connector.
2. Check voltage between back door closure control unit connector
D106 terminal 8 and ground.
OK or NG
OK >> Replace back door lock assembly.
NG >> Replace back door closure control unit.
Open Switch CheckAIS004ON
1. CHECK OPEN SWITCH SIGNAL
1. Turn ignition switch OFF.
2. Check the signal between back door closure control unit connector and ground with oscilloscope.
OK or NG
OK >> Open switch is OK.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY
1. Disconnect back door closure control unit and back door closure motor connector.
2. Check continuity between back door closure control unit con-
nector D106 terminal 9 and back door closure motor connector
D109 terminal 4.
3. Check continuity between back door closure control unit con-
nector D106 terminal 9 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.Back door is closed
8 (L) – Ground : Battery voltage
PIIA6173E
Con-
nectorTerminals (Wire color)
Back door
conditionSignal
(Reference value)
(+) (-)
D106 9 (P) GroundFully open →
fully closed
PIIA6175E
SIIA1481J
9 (P) – 4 (P) : Continuity should exist.
9 (P) – Ground : Continuity should not exist.
PIIA6176E

BACK DOOR AUTO CLOSURE SYSTEM
BL-175
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2004 November 2004 FX35/FX45
3. CHECK GROUND CIRCUIT
Check continuity between back door closure motor connector D109
terminal 8 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK BACK DOOR CLOSURE CONTROL UNIT OUTPUT SIGNAL
1. Connect back door closure control unit connector.
2. Check voltage between back door closure control unit connector
D106 terminal 9 and ground.
OK or NG
OK >> Replace back door lock assembly.
NG >> Replace back door closure control unit.
Back Door Opener Switch Check (With Intelligent Key)AIS004U8
1. CHECK BACK DOOR OPENER SWITCH SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between back door closure control unit connector and ground.
OK or NG
OK >> Back door opener switch is OK.
NG >> GO TO 2.8 (B) – Ground : Continuity should exist.
PIIA6170E
Back door is closed
9 (P) – Ground : Battery voltage
PIIA6177E
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
D106 6 (LG) GroundBack door opener switch
: ON0
Back door opener switch
: OFF5
PIIA6178E

BACK DOOR AUTO CLOSURE SYSTEM
BL-179
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2004 November 2004 FX35/FX45
Unlock Sensor Check (Without Intelligent Key)AIS004UA
1. CHECK UNLOCK SENSOR SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between back door closure control unit connector
and ground.
OK or NG
OK >> Unlock sensor is OK.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY
1. Disconnect back door closure control unit and front door lock assembly (passenger side) connector.
2. Check continuity between back door closure control unit con-
nector D106 terminal 5 and front door lock assembly (passenger
side) connector D40 terminal 5.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between back door closure
control unit and front door lock assembly (passenger
side).
3. CHECK GROUND CIRCUIT
Check continuity between front door lock assembly (passenger side)
connector D40 terminal 4 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
D106 5 (W) GroundPassenger side door lock is
locked5
Passenger side door lock is
unlocked0
PIIA6182E
5 (W) – 5 (W) : Continuity should exist.
PIIA6183E
4 (B) – Ground : Continuity should exist.
PIIA6184E

BL-180
BACK DOOR AUTO CLOSURE SYSTEM
Revision: 2004 November 2004 FX35/FX45
4. CHECK BACK DOOR CLOSURE CONTROL UNIT OUTPUT SIGNAL
1. Connect back door closure control unit connector.
2. Check voltage between back door closure control unit connector
D106 terminal 5 and ground.
OK or NG
OK >> Replace front door lock assembly (passenger side).
NG >> Replace back door closure control unit.
Closure Motor CheckAIS004UB
1. CHECK BACK DOOR CLOSURE MOTOR
1. Turn ignition switch OFF.
2. Check the signal between back door closure control unit connector and ground with oscilloscope.
OK or NG
OK >> GO TO 2.
NG >> Replace back door closure control unit.
2. CHECK HARNESS CONTINUITY
1. Disconnect back door closure control unit and back door closure motor connector.
2. Check continuity between back door closure control unit con-
nector D106 terminals 2, 3 and back door closure motor connec-
tor D109 terminals 1, 2.
3. Check continuity between back door closure control unit con-
nector D106 terminals 2, 3 and ground.
OK or NG
OK >> Replace back door closure motor.
NG >> Repair or replace harness.
Removal and Installation of Back Door Closer Control UnitAIS004UC
1. Remove the back door finisher.EI-46, "Removal and Installation" .
2. Disconnect the back door closer control unit harness, remove the screw and back door closer control unit.5 (W) – Ground : Approx. 5V
PIIA6182E
Con-
nectorTerminals (Wire color)
Back door
conditionSignal
(Reference value)
(+) (-)
D1062 (PU)
GroundFully closed
→ fully open
3 (G)Fully open →
fully closed
PIIA6185E
SIIA1480J
2 (PU) – 1 (PU) : Continuity should exist.
3 (G) – 2 (G) : Continuity should exist.
2 (PU) – Ground : Continuity should not exist.
3 (G) – Ground : Continuity should not exist.
PIIA6186E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-183
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2004 November 2004 FX35/FX45
Canceling the Set Vehicle Security System
When one of the following operations is performed, the armed phase is canceled.
1. Unlock the doors with the key, key fob or Intelligent Key.
2. Turn ignition switch “ON” or “ACC” position.
Canceling the Alarm Operation of the Vehicle Security System
When unlock the door with the key, key fob or Intelligent Key the alarm operation is canceled.
Activating the Alarm Operation of the Vehicle Security System
Make sure the system is in the armed phase. (The security indicator lamp brinks every 2.4 seconds.)
When the following operation 1 or 2 is performed, the system sounds the horns and flashes the headlamps for
about 50 seconds.
1. Hood, back door or any door is opened during armed phase.
2. Disconnecting and connecting the battery connector before canceling armed phase.
POWER SUPPLY
Power is supplied at all times

through 10A fuse [No.19, located in the fuse block (J/B)]

to security indicator lamp terminal 1.

through 50A fusible link (letter M , located in the fuse and fusible link box)

to BCM terminal 55.

through 15A fuse [No.22, located in the fuse block (J/B)]

to BCM terminal 42.

through 15A fuse [No.34, located in the fuse and fusible link box]

to horn relay terminal 2.

through 10A fuse [No.71, located in the IPDM E/R]

to IPDM E/R internal CPU.

through 15A fuse [No.78, located in the IPDM E/R]

to IPDM E/R internal CPU.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

to BCM terminal 11.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the vehicle security system is controlled by the doors, hood and back door.
To activate the vehicle security system, BCM must receive signals indicating the doors, hood and back door
are closed and the doors are locked by key fob, Intelligent Key or ignition key.
When a door is open, BCM terminal 12 (passenger side door), 13 (rear RH door), 62 (driver side door), 63
(rear LH door) receives a ground signal from each door switch.
When front door LH is unlocked by power window main switch (door lock and unlock switch),
BCM terminal 22 receives a signal from terminal 14 of power window main switch with power window serial
link.
When front door RH is unlocked by front power window switch (passenger side) (door lock and unlock switch),
BCM terminal 22 receives a signal from terminal 16 of front power window switch (passenger side) with power
window serial link.
When the hood is open, IPDM E/R receives a ground signal

to IPDM E/R terminal 56

through hood switch terminal 2

through hood switch terminal 1

through body grounds E21, E50 and E51.
The IPDM E/R then sends a signal to the BCM through the CAN SYSTEM.
When the back door is open,

to BCM terminal 58

through back door closure motor terminal 7

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-195
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2004 November 2004 FX35/FX45
Trouble DiagnosisAIS004P1
WORK FLOW

“POWER DOOR LOCK SYSTEM” Diagnosis; refer to BL-37, "Work Flow" .

“REMOTE CONTROL SYSTEM” Diagnosis; refer to BL-68, "Work Flow" .

“INTELLIGENT KEY SYSTEM” Diagnosis; refer to BL-113, "WORK FLOW" .
PIIA6909E

WARNING CHIME
DI-57
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2004 November 2004 FX35/FX45

to Intelligent Key unit terminal 27.
Ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1.
Front door switch (driver side) is case grounded.
BCM sends front door switch signal to Intelligent Key unit with CAN communication line.
Intelligent Key unit detects ignition knob return is forgotten, and sends key warning signal to unified meter and
A/C amp. with CAN communication line. Unified meter and A/C amp. sends key warning signal to combination
meter with communication line between unified meter and A/C amp. and combination meter.
When combination meter receives key warning signal, it sounds warning chime.
LIGHT WARNING CHIME
With the key removed from the ignition switch or with the ignition knob is in LOCK (push switch OFF) [with
Intelligent Key], the driver's door open, and the lighting switch in ON position, the warning chime will sound.
[Except when headlamp battery saver control operates (for 5 minutes after ignition switch is turned to OFF or
ACC position) and headlamps do not illuminate.]
Signal is supplied

from combination switch (lighting switch) terminals 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10

to BCM terminals 2, 3, 4, 5, 6, 32, 33, 34, 35 and 36.
NOTE:
BCM detected lighting switch in 1st or 2nd position, refer to BCS-3, "
COMBINATION SWITCH READING
FUNCTION" .
Ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1.
Front door switch (driver side) is case grounded.
BCM detects headlamps are illuminated, and sends light warning signal to unified meter and A/C amp. with
CAN communication line. Unified meter and A/C amp. sends light warning signal to combination meter with
communication line between unified meter and A/C amp. and combination meter.
When combination meter receives light warning signal, it sounds warning chime.
SEAT BELT WARNING CHIME
With ignition switch turned ON and seat belt unfastened [seat belt buckle switch (driver side) ON], warning
chime will sound for approximately 6 seconds.
Ground is supplied

to combination meter terminal 9

through seat belt buckle switch (driver side) terminal 60.
Seat belt buckle switch (driver side) terminal 61A is grounded through body grounds B15 and B45.
Combination meter sends seat belt unfastened [seat belt buckle switch (driver side) ON] signal to unified
meter and A/C amp. with communication line between unified meter and A/C amp. and combination meter.
BCM receives seat belt unfastened [seat belt buckle switch (driver side) ON] signal from unified meter and A/
C amp. with CAN communication line, and sends seat belt warning signal to unified meter and A/C amp. with
CAN communication line. Unified meter and A/C amp. sends seat belt warning signal to combination meter
with communication line between unified meter and A/C amp. and combination meter.
When combination meter receives seat belt warning signal, it sounds warning chime.
CAN Communication System DescriptionAKS007Z2
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 UnitAKS007YY
Refer to LAN-6, "CAN Communication Unit" in “LAN SYSTEM”.

REAR VIEW MONITOR
DI-97
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2004 November 2004 FX35/FX45
3. CHECK REAR VIEW CONTROL UNIT SYNCHRO SIGNAL
1. Connect rear view camera control unit connector and display connector.
2. Turn ignition switch ON.
3. Check voltage signal between rear view camera control unit har-
ness connector M48 terminal 14 (Y) and ground.
OK or NG
OK >> Replace rear view camera control unit.
NG >> Replace display.
Removal and Installation of Rear View Camera Control UnitAKS0068Q
REMOVAL
1. Remove instrument clock finisher and A/T console finisher.
Refer to IP-11, "
WORK STEP" .
2. Remove screws (2), and remove rear view camera control unit.
INSTALLATION
Install in the reverse order of removal.
Removal and Installation of Rear View CameraAKS0068R
REMOVAL
1. Remove back door finisher lower. Refer to EI-46, "Removal and
Installation" .
2. Cut off back door module along the line.
3. Remove connector.14 (Y) - Ground:
SKIA5103E
SKIA5896E
SKIA5797E
SKIA6168E

SQUEAK AND RATTLE TROUBLE DIAGNOSES
EI-7
C
D
E
F
G
H
J
K
L
MA
B
EI
Revision: 2004 November 2004 FX35/FX45
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30 × 50 mm (1.18 × 1.97 in)
FELT CLOTHTAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15 × 25 mm (0.59 × 0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll The following
materials, not found in the kit, can also be used to repair squeaks and rattles.
UHMW(TEFLON) TAPE
Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used in place of UHMW tape that will be visible or not fit.
Note: Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Generic Squeak and Rattle TroubleshootingAIS00376
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicon spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Do not use silicone spray to isolate a squeak or rattle. If you saturate the area with silicone, you will
not be able to recheck the repair.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation procedures also apply to the center console.
DOORS
Pay attention to the:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the areas with felt cloth tape or insulator foam blocks from
the Nissan Squeak and Rattle Kit (J-43980) to repair the noise.