ignition INFINITI FX35 2008 Service Manual

BCS-8
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
MAJOR COMPONENTS AND CONTROL SYSTEM
System Reference
Oil pressure warning lamp DI-34
System Input Output
Remote control entry system Key fob  All-door locking actuator
 Fuel lid Lock actuator
 Turn signal lamp (LH, RH)
 Combination meter
Intelligent Key system Intelligent Key unit  All-door locking actuator
 Fuel lid Lock actuator
 Turn signal lamp (LH, RH)
 Combination meter
Power door lock system  Power window main switch
(door lock and unlock switch)
 Power window sub switch (passenger side) (door lock and unlock switch) All-door locking actuator
Power supply (IGN) to power window, sunroof Ignition power supply Power window and sunroof system
Power supply (BAT) to power window, sunroof
and power seat Battery power supplyPower window, sunroof system and
power seat
Panic alarm  Key switch
 Key fobIPDM E/R
Theft warning system  All-door switch
 Hood switch
 Key fob
 Power window main switch (door lock and
unlock switch)
 Power window sub switch (passenger side) (door lock and unlock switch)  IPDM E/R
 Security indicator lamp
Auto light system  Optical sensor
 Combination switch
 Ignition switchIPDM E/R
Exterior lamp battery saver control  Ignition switch
 Combination switchIPDM E/R
Headlamp Combination switch IPDM E/R
Daytime light system  Combination meter
ECM
 Combination switch
 Ignition switchIPDM E/R
Parking, license plate, side marker and tail
lamps Combination switch IPDM E/R
Front fog lamp Combination switch IPDM E/R
Turn signal lamp  Combination switch
 Ignition switch Turn signal lamp
 Combination meter
Hazard lamp Hazard switch  Turn signal lamp
 Combination meter
Room lamp timer  Key switch
 Key fob
 Power window main switch (door lock and
unlock switch)
 Front door switch driver side
 All-door switch Interior room lamp
Key warning chime  Key switch
 Front door switch driver sideCombination meter
(warning buzzer)
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BCM (BODY CONTROL MODULE)BCS-9
< SERVICE INFORMATION >
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CAN Communication UnitINFOID:0000000001328609
Refer to LAN-43, "CAN System Specification Chart".
Light warning chime  Combination switch
 Key switch
 Front door switch driver sideCombination meter
(warning buzzer)
Seat belt warning chime  Combination meter [Seat belt buckle (driver
side) switch]
 Ignition switch Combination meter
(warning buzzer)
Front wiper and washer system  Combination switch
 Combination meter
 Ignition switchIPDM E/R
Rear wiper and washer system  Combination switch
 Ignition switchRear wiper motor
Rear window defogger  Rear window defogger switch
 Ignition switch
IPDM E/R
A/C switch signal Unified meter and A/C amp. ECM
Blower fan switch signal Unified meter and A/C amp. ECM
Low tire pressure warning system Remote keyless entry receiver Combination meter System Input Output
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BCM (BODY CONTROL MODULE)BCS-13
< SERVICE INFORMATION >
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SELF-DIAG RESULTS
U1000 CAN Communication CircuitINFOID:0000000001606767
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of BCM.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-14, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-25, "
How to Perform Efficient Diagnosis for an Electrical Incident".
Removal and Installation of BCMINFOID:0000000001328613
REMOVAL
1. Remove the dash side finisher (LH). Refer to EI-38.
2. Disconnect BCM connector.
3. Remove bracket mounting screws (3) to remove BCM and fuse block with bracket.
Item Description
RESET SETTING VALUE Return a value set with WORK SUPPORT of each system to a default value in factory shipment.
DTC DTC Detection Condition Possible cause
U1000: CAN COMM CIRCUIT When BCM cannot communicate CAN com-
munication signal continuously for 2 sec-
onds or more. Any item (or items) of the following listed below is
malfunctioning in CAN communication system.
Transmission
 Receiving (ECM)
 Receiving (IPDM E/R)
 Receiving (METER/M&A)
 Receiving (I-KEY)
SKIA4964E
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BCS-14
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
4. Raise the pawl of fuse block and remove bracket from fuse blockto remove BCM.
INSTALLATION
Installation is the reverse order of removal.
NOTE:
When replacing BCM perform initialization of NATS s ystem and registration of all NATS ignition key IDs.
SKIA4965E
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BL-2
Check Remote Keyless Entry Receiver ..................69
Check IPDM E/R Operation ....................................71
Check Hazard Warning Lamp Function ..................72
Check Horn Function ..............................................72
Check Headlamp Function .....................................72
Check Map Lamp and Ignition Keyhole Illumina-
tion Function ...........................................................
72
ID Code Entry Procedure .......................................73
Removal and Installation of Remote keyless Entry
receiver ................................................................ ...
75
Key Fob Battery Replacement ................................75
INTELLIGENT KEY SYSTEM ............................76
Component Parts and Harness Connector Loca-
tion ....................................................................... ...
76
System Description .................................................78
CAN Communication System Description ..............83
CAN Communication Unit .......................................84
Schematic ...............................................................84
Wiring Diagram - I/KEY - ........................ ................86
Terminal and Reference Value for INTELLIGENT
KEY UNIT ........... ................................. ...................
99
Terminal and Reference Value for Steering Lock
unit ....................................................................... ..
101
Terminal and Reference Value for BCM ................101
Terminal and Reference Value for IPDM E/R ........102
Diagnosis Procedure .............................................103
CONSULT-III Functions (INTELLIGENT KEY) ......103
CONSULT-III Application Item ............................. ..104
List of Operation Related Parts .............................105
Trouble Diagnosis Symptom Chart ........................106
Check CAN Communication System Inspection ....111
Check Intelligent Key Unit Power Supply and
Ground Circuit ..................................................... ..
111
Check Key Switch (Intelligent Key Unit Input) .......112
Check Key Switch (BCM Input) ........................... ..113
Check Ignition Knob Switch ...................................114
Check Door Switch ................................................115
Check Unlock Sensor ............................................117
Check Door Request Switch ..................................119
Check Intelligent Key Warning Buzzer ..................120
Check Outside Key Antenna ............................... ..121
Check Inside Key Antenna ....................................123
Check Steering Lock Unit ......................................124
Check Stop Lamp Switch ......................................126
Check Park Position Switch ...................................126
Check Select Unlock Relay ...................................128
Check Hazard Function .........................................128
Check Horn Function .............................................129
Check Headlamp Function ....................................129
Check IPDM E/R Operation ...................................129
Removal and Installation of Intelligent Key Unit ....130
Intelligent Key Battery Re placement .....................130
DOOR .............................................................. .131
Fitting Adjustment ................................................ ..131
Removal and Installation of Front Door .................132
Removal and Installation of Rear Door ..................133
Removal and Installation of Door Weatherstrip .....134
FRONT DOOR LOCK .......................................135
Removal and Installation ...................................... .135
REAR DOOR LOCK .........................................138
Removal and Installation ...................................... .138
BACK DOOR .................................................. ..141
Fitting Adjustment ................................................ .141
Back Door Assembly .............................................141
Removal and Installation of Back Door Striker .....142
Removal and Installation of Back Door Stay .........143
Removal and Installation of Dave Tail Male & Fe-
male ..................................................................... .
144
Removal and Installation of Back Door Weather-
strip .......................................................................
144
BACK DOOR LOCK ASSEMBLY ....................146
Removal and Installation of Back Door Lock &
Closure Assembly ................................................ .
146
Removal and Installation of Back Door Opener
Switch ...................................................................
146
Disassembly and Assembly ..................................147
BACK DOOR AUTO CLOSURE SYSTEM ......148
Component Parts and Harness Connector Loca-
tion ....................................................................... .
148
System Description ...............................................148
Wiring Diagram - B/CLOS - ...................................150
Terminal and Reference Value for Back Door Clo-
sure Control Unit ...................................................
152
Work Flow .............................................................153
Preliminary Check .................................................153
Trouble Diagnosis Chart by Symptom ..................153
Check Back Door Closure Control Unit Power
Supply and Ground Circuit ....................................
153
Check Half-Latch Switch .......................................154
Check Close Switch ..............................................155
Check Open Switch ..............................................156
Check Back Door Opener Switch (With Intelligent
Key) ...................................................................... .
157
Check Back Door Opener Switch (Without Intelli-
gent Key) ...............................................................
159
Check Unlock Sensor (Without Intelligent Key) ....160
Check Closure Motor ........................................... .161
Removal and Installation of Back Door Closer
Control Unit ...........................................................
162
VEHICLE SECURITY (THEFT WARNING)
SYSTEM ...........................................................
163
Component Parts and Harness Connector Loca-
tion ....................................................................... .
163
System Description ...............................................164
CAN Communication System Description ............166
CAN Communication Unit .....................................166
Schematic .............................................................167
Wiring Diagram - VEHSEC - .................................168
Terminal and Reference Value for BCM ...............173
Terminal and Reference Value for IPDM E/R .......174
CONSULT-III Function ..........................................174
Trouble Diagnosis .................................................176
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BL-4
< SERVICE INFORMATION >
DTC INDEX
SERVICE INFORMATION
DTC INDEX
INTELLGENT KEY UNIT U1000INFOID:0000000001529387
INTELLGENT KEY UNIT B2013-B2014INFOID:0000000001529388
ECM P1610-P1615INFOID:0000000001529389
CONSULT display Descr iption Reference page
U1000: CAN COMM CIRCUIT M alfunction is detected in CA N communication.
BCS-13, "
U1000 CAN
Communication Circuit"
CONSULT display Descr iption Reference page
B2013: STRG COMM 1 .Malfunction is detected in communication of Intelligent
Key unit and steering lock unit BL-124, "
Check Steering
Lock Unit"
B2014: STRG COMM 2
Malfunction is detected in communication of Intelligent Key
unit and steering lock unit. BL-124, "Check Steering
Lock Unit"
CONSULT display Descr
iption Reference page
P1610: LOCK MODE When the starting operation is carried out 5 or more times
consecutively under the following conditions, IVIS(NATS)
will shift the mode to prevent the engine start.
• unregistered ignition key is used (without intelligent key
system)
 BCM or ECM malfunctioning BL-198, "
Diagnosis Proce-
dure 5"
P1611: ID DISCORD, IMM-ECM
The result of ID verification between BCM and ECM is NG.
System initialization is required. BL-197, "Diagnosis Proce-
dure 4"
P1612: CHAIN OF ECM-IMMU Communication impossible between ECM and BCM.
BL-197, "Diagnosis Proce-
dure 2"
P1613: ECM INT CIRC-IMMUThe malfunction of ECM internal circuit to BCM communi-
cation line is detected. BL-195, "Diagnosis Proce-
dure 1"
P1614: CHAIN OF IMMU-KEY BCM cannot receive the key ID signal.
BL-200, "Diagnosis Proce-
dure 6"
P1615: DIFFERENCE OF KEY
BCM can receive the key ID signal but the result of ID ver-
ification between key ID and BCM is NG. BL-197, "Diagnosis Proce-
dure 3"
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PRECAUTIONSBL-5
< SERVICE INFORMATION >
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612892
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution Necessary for Steering Wh eel Rotation After Battery Disconnect
INFOID:0000000001612889
NOTE:
 This Procedure is applied only to models with Intell igent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
 Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.
Precaution for WorkINFOID:0000000001327777
 After removing and installing the opening/closing parts, be sure to carry out fitting adjustments to check their
operation.
 Check the lubrication level, damage, and wear of each part. If necessary, grease or replace it.
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BL-22
< SERVICE INFORMATION >
POWER DOOR LOCK SYSTEM
System Description
INFOID:0000000001327790
Power is supplied at all times
 through 50A fusible link (letter M, located in the fuse and fusible link box).
 to BCM terminal 55
 thought 15A fuse [No. 22, located in the fuse block (J/B)]
 to BCM terminal 42
 thought 15A fuse [No. 22, located in the fuse block (J/B)]
 to key switch terminal 2 (without intelligent key system)
 thought 15A fuse [No. 22, located in the fuse block (J/B)].
 to key switch and ignition knob switch te rminal 3 (with intelligent key system)
When key switch is ON (key is inserted in ignition key cylinder), power is supplied
 through key switch terminal 1 (without intelligent key system) or 4 (with intelligent key system).
 to BCM terminal 37
When the door is locked or unlocked with power window main switch (door lock and unlock switch), ground is
supplied
 to CPU of power window main switch
 through power window main switch (door lock and unlock switch) terminal 17
 through grounds M35, M45 and M85.
Then power window main switch (door lock and unlock switch) operation signal is supplied.
 through power window main switch terminal 14.
 to BCM terminal 22
When the door is locked or unlocked with front power window switch (passenger side) (door lock and unlock
switch), ground is supplied
 to CPU of front power window switch (passenger side)
 through front power window switch (passenger si de) (door lock and unlock switch) terminal 11
 through grounds M35, M45 and M85.
Then front power window switch (passenger side) (door lock and unlock switch) operation signal is supplied
 through front power window switch (passenger side) terminal 16.
 to BCM terminal 22
When the door is locked with front door key cylinder switch, ground is supplied
 to power window main switch terminal 4
 through key cylinder switch terminals 1 and 5
 through grounds M35, M45 and M85.
Then key cylinder switch operation signal (lock) is supplied
 through power window main switch terminal 14.
 to BCM terminal 22
When the door is unlocked with key cylinder switch, ground is supplied
 to power window main switch terminal 6
 through key cylinder switch terminal 6 and 5
 through grounds M35, M45 and M85.
Then key cylinder switch operation signal (unlock) is supplied
 through power window main switch terminal 14.
 to BCM terminal 22
BCM is connected to power window main switch and fr ont power window switch (passenger side) as serial
link.
When the front door switch (driver side) is ON (door is OPEN), ground is supplied
 to BCM terminal 62
 through front door switch (driver side) terminal 1
 through front door switch (driver side) case ground.
PIIA6412E
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POWER DOOR LOCK SYSTEMBL-23
< SERVICE INFORMATION >
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When the front door switch (passenger side) is ON (door is OPEN), ground is supplied
 to BCM terminal 12
 through front door switch (passenger side) terminal 1
 through front door switch (passenger side) case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied
 to BCM terminal 63
 through front door switch LH terminal 1
 through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied
 to BCM terminal 13
 through front door switch RH terminal 1
 through rear door switch RH case ground.
When the back door switch is ON (door is OPEN), ground is supplied
 to BCM terminal 58
 through back door closure motor (door switch) terminal 7 and 8
 through grounds B15 and B45.
OUTLINE
Functions Available by Operating the Door Lock and Unlo ck Switches on Driver's Door and Passenger's Door
 Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all doors and
fuel lid lock actuator are locked.
 Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all doors and
fuel lid lock actuator are unlocked.
Functions Available by Operating th e Key Cylinder Switch on Driver's
 Interlocked with the locking operation of door key cyli nder, door lock actuators of all doors and fuel lid lock
actuator are locked.
Select Unlo ck Operation
 When door key cylinder is unlocked, door lock actuator driver side and fuel lid lock actuator are unlocked.
 When door key cylinder is unlocked for the second time within 5 seconds after the first operation, door lock
actuators on all doors are unlocked.
Select unlock operation mode can be changed using “DOOR LOCK-UNLOCK SET”\
mode in “WORK SUP-
PORT”. Refer to BL-36, "
CONSULT-III Function (BCM)".
Select unlock operation mode can be changed also on the display.
Key Reminder Door System
When door lock and unlock switch is operated to lock doors with ignition key put in key cylinder and any door
open, all door lock actuators are locked and then unlocked.
Key reminder door mode can be changed using “WOR K SUPPORT” mode in “ANTI-LOCK OUT SET”.
Refer to BL-36, "
CONSULT-III Function (BCM)".
CAN Communication System DescriptionINFOID:0000000001327791
CAN (Controller Area Network) is a serial communication li ne 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 UnitINFOID:0000000001327792
Refer to LAN-43, "CAN System Specification Chart".
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POWER DOOR LOCK SYSTEMBL-35
< SERVICE INFORMATION >
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Terminal and Reference Value for BCMINFOID:0000000001327797
Terminal and Reference Value for Intelli gent Key Unit (With Intelligent Key System)
INFOID:0000000001327798
Te r m i -
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Color ItemSignal
Input/
output Condition
Voltage (V)
(Approx.)
12 P/B Front door switch (Pas-
senger side)
Input ON (door open)
→ OFF (door closed) 0 → Battery voltage
13 P/L Rear door switch RH Input ON (door open) → OFF (door closed) 0 → Battery voltage
22 OR Power window serial link Input/
Output Ignition switch ON
37 B/W Key switch Input ON (Key inserted)
→ OFF (Key re-
moved from IGN key cylinder) Battery voltage
→ 0
39 L CAN H Input/
Output ——
40 P CAN L Input/
Output ——
42 L/R Battery power supply
(fuse) Input — Battery voltage
44 Y Driver door lock actuator
(unlock)
OutputDoor lock / unlock switch
(Free
→ Unlock) 0
→ Battery voltage → 0
49 B Ground — — 0
50 PU Door lock actuator (lock) Output Door lock / unlock switch
(Free
→ Lock) 0
→ Battery voltage → 0
51 W/B Passenger and rear doors
lock actuator (unlock) OutputDoor lock / unlock switch
(Free
→ Unlock) 0
→ Battery voltage → 0
52 B Ground — — 0
55 G Power source (Fusible
link)
Input — Battery voltage
58 L Back door switch Input ON (Door open) → OFF (Door closed) 0 → 9
62 W Front door switch (Driver
side) Input ON (Door open)
→ OFF (Door closed) 0 →
Battery voltage
63 P Rear door switch LH Input ON (Door open) → OFF (Door closed) 0 → Battery voltage
PIIA2344J
Te r m i -
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Color ItemSignal
Input/
output Condition
Voltage (V)
(Approx.)
2 L CAN H Input/
Output ——
3 P CAN L Input/
Output ——
27 L/W Push switch Input Push switch (OFF → ON) 0 → Battery voltage
40 BR/W AS unlock output signal Output Door lock / unlock switch
(Free
→ Unlock) 0
→ Battery voltage
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