2005 INFINITI FX35 key battery

PRECAUTIONS BL-5
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2005 July 2005 FX
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AIS004L9
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity 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 SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, 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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectAIS00583
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″ LOCK ″ position.

Always use CONSULT-II 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 power 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-II.
Precautions for WorkAIS004LA

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.

BL-36
POWER DOOR LOCK SYSTEM
Revision: 2005 July 2005 FX
Terminals and Reference Value for BCMAIS004LV
Terminals and Reference Value for Intelligent Key Unit (With Intelligent Key Sys-
tem)
AIS004LW
Work FlowAIS004LX
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to BL-22, "
System Description" .
3. According to the trouble diagnosis chart by symptom, repair or replace the cause of the malfunction. Refer to BL-40, "
Trouble Diagnosis Chart by Symptom" .
4. Does power door lock system operate normally? YES: GO TO 5.
NO: GO TO 3.
5. INSPECTION END
TERMI- NAL WIRE
COLOR ITEM CONDITION VOLTAGE (V)
Approx.
12 P/B Front door switch (Passenger
side) ON (door open)
→ OFF (door closed) 0 → Battery voltage
13 P/L Rear door switch RH ON (door open) → OFF (door closed) 0 → Battery voltage
22 OR Power window serial link Ignition switch ON
37 B/W Key switch ON (Key inserted)
→ OFF (Key removed
from IGN key cylinder) Battery voltage
→ 0
39 L CAN H — —
40 R CAN L — —
42 L/R Battery power supply (fuse) — Battery voltage
44 Y Driver door lock actuator
(unlock) Door lock / unlock switch
(Free → Unlock) 0
→ Battery voltage → 0
49 B Ground — 0
50 PU Door lock actuator (lock) Door lock / unlock switch
(Free → Lock) 0
→ Battery voltage → 0
51 W/B Passenger and rear doors lock
actuator (unlock) Door lock / unlock switch
(Free → Unlock) 0
→ Battery voltage → 0
52 B Ground — 0
55 G Power source (Fusible link) — Battery voltage
58 L Back door switch ON (Door open) → OFF (Door closed) 0 → 9
62 W Front door switch (Driver side) ON (Door open) → OFF (Door closed) 0 → Battery voltage
63 P Rear door switch LH ON (Door open) → OFF (Door closed) 0 → Battery voltage
PIIA2344J
TERMI-
NAL WIRE
COLOR ITEM CONDITION VOLTAGE (V)
Approx.
2 L CAN H – –
3 R CAN L – –
27 L/W Push switch Push switch (OFF → ON) 0 → Battery voltage
40 BR/W AS unlock output signal Door lock / unlock switch
(Free → Unlock) 0
→ Battery voltage

BL-46
POWER DOOR LOCK SYSTEM
Revision: 2005 July 2005 FX
4. CHECK BACK DOOR SWITCH GROUND HARNESS
Check continuity between back door switch connector D109 terminal
8 and ground.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness.
Check Key SwitchAIS004M2
1. CHECK KEY SWITCH INPUT SIGNAL
With CONSULT-II
Check ignition key switch “KEY ON SW” in “DATA MONITOR” mode
with CONSULT-II.

When key is inserted in ignition key cylinder

When key is removed from ignition key cylinder
Without CONSULT-II
Check voltage between BCM connector and ground.
OK or NG
OK >> Key switch circuit is OK.
NG >> GO TO 2. (With Intelligent Key)
NG >> GO TO 3. (Without Intelligent Key) 8 (B) – Ground : Continuity should exist.
PIIA6477E
KEY ON SW : ON
KEY ON SW : OFF
PIIA6470E
Connector Terminal
Condition of key switch Voltage (V)
Approx.
(+) (-)
M3 37
(B/W) Ground Key is inserted in IGN
key cylinder. Battery voltage
Key is removed from IGN
key cylinder. 0
PIIA6378E

BL-64
REMOTE KEYLESS ENTRY SYSTEM
Revision: 2005 July 2005 FX
Terminals and Reference Value for BCMAIS004MF
TERMI-
NAL WIRE
COLOR ITEM CONDITION VOLTAGE (V)
Approx.
1PU Key ring illumination output sig-
nal Key ring illumination is lighting. Battery voltage
Key ring illumination is being turned off. 0
11 LG/R Ignition switch Ignition switch is in ACC or ON position Battery voltage
12 P/B Front door switch (Passenger
side) ON (door open)
→ OFF (door closed) 0 → Battery voltage
13 P/L Rear door switch RH ON (door open) → OFF (door closed) 0 → Battery voltage
18 B Remote keyless entry receiver
(Ground) —0
19 R Remote keyless entry receiver
(Power supply) —
20 Y Remote keyless entry receiver
(Signal) Stand-by
When remote keyless entry receiver
receives signal from keyfob.
37 B/W Key switch ON (Key is inserted in IGN key cylinder)
→ OFF (Key is removed from IGN key
cylinder) Battery voltage
→ 0
38 W/L Ignition switch Ignition switch is in ON or START posi-
tion Battery voltage
39 L CAN H — —
40 R CAN L — —
41 R/B Battery saver output signal 30 minutes after ignition switch is turned
to OFF 0
Ignition switch is in ON position Battery voltage
42 L/R Battery power supply (fuse) — Battery voltage
44 Y Driver door lock actuator
(Unlock) Door lock / unlock switch
(Free → Unlock) 0
→ Battery voltage
45 G/W Left turn signal lamp When door lock or unlock is operated
using key fob.*
1
(ON → OFF) Battery voltage
→ 0
46 BR/W Right turn signal lamp When door lock or unlock is operated
using key fob.*
1
(ON → OFF) Battery voltage
→ 0
47 Y/R Step lamp output signal Step lamp is lighting. 0
Step lamp is being turned off. Battery voltage
OCC3881D
OCC3879D
OCC3880D

REMOTE KEYLESS ENTRY SYSTEM BL-65
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2005 July 2005 FX
*1 : In the state that hazard reminder operates.
*2 : In the state that room lamp switch is in “DOOR” position.
Terminals and Reference Value for IPDM E/RAIS004MG
* : In the state that horn reminder operates. 48 PU/W Room lamp output signal
Room lamp is lighting.*
20
Room lamp is being turned off.*
2Battery voltage
49, 52 B Ground — 0
50 PU Door lock actuator (Lock) Door lock / unlock switch
(Free → Lock) 0
→ Battery voltage
51 W/B Passenger and rear doors lock
actuator (Unlock) Door lock / unlock switch
(Free → Unlock) 0
→ Battery voltage
54 W Battery power supply
(power window) — Battery voltage
55 G Battery power supply (Fusible
link) — Battery voltage
58 L Back door switch OFF (Door close) → ON (Door open) 9 → 0
62 W Front door switch (Driver side) OFF (Door close) → ON (Door open) Battery voltage → 0
63 P Rear door switch LH OFF (Door close) → ON (Door open) Battery voltage → 0
TERMI-
NAL WIRE
COLOR ITEM CONDITION VOLTAGE (V)
Approx.
TERMINAL WIRE
COLOR ITEM CONDITION VOLTAGE (V)
Approx.
38 B Ground — 0
48 L CAN H — —
49 R CAN L — —
51 SB Horn relay When door lock is operated using key
fob* (OFF → ON) Battery voltage
→ 0
60 B Ground — 0

BL-70
REMOTE KEYLESS ENTRY SYSTEM
Revision: 2005 July 2005 FX
Trouble Diagnosis Chart by SymptomAIS004MJ
NOTE:

Always check the “Work Flow” before troubleshooting. Refer to BL-69, "Work Flow" .

Always check key fob battery before replacing key fob.
Symptom Diagnoses/service procedure Reference
page
All function of remote keyless entry system do not
operate. 1. Check key fob battery and function.
BL-72
2. Replace key fob. Refer to ID Code Entry Procedure.
NOTE:
If the result of key fob function check with CONSULT-II is OK, key
fob is not malfunctioning. BL-84
3. Check remote keyless entry receiver.
BL-79
4. Replace BCM.BCS-16
The new ID of key fob cannot be entered. 1. Check key fob battery and function.
BL-72
2. Check key switch.BL-78
3. Check door switch.BL-74
4. Check ACC switch.BL-73
5. Replace key fob. Refer to ID Code Entry Procedure.
NOTE:
If the result of key fob function check with CONSULT-II is OK, key
fob is not malfunctioning. BL-84
6. Replace BCM.
BCS-16
Door lock or unlock does not function with key fob.
(Power door lock system is “OK”.) 1. Check key fob battery and function.
BL-72
2. Replace key fob. Refer to ID Code Entry Procedure.
NOTE:
If the result of key fob function check with CONSULT-II is OK, key
fob is not malfunctioning. BL-84
3. Replace BCM.
BCS-16
Hazard and horn reminder does not activate prop-
erly when pressing lock or unlock button of key fob. 1. Check hazard and horn reminder mode.*
*: Hazard and horn reminder mode can be changed.
First check the hazard and horn reminder setting. BL-68
2. Check door switch.
BL-74
3. Replace BCM.BCS-16
Hazard reminder does not activate properly when
pressing lock or unlock button of key fob.
(Horn reminder is “OK”.) 1. Check hazard reminder mode.*
*: Hazard reminder mode can be changed.
First check the hazard reminder setting. BL-68
2. Check hazard function with hazard switch.
BL-83
3. Replace BCM.BCS-16
Horn reminder does not activate properly when
pressing lock button of key fob.
(Hazard reminder is “OK”.) 1. Check horn reminder mode.*
*: Horn reminder can be changed.
First check the horn chirp setting. BL-68
2. Check horn function.
BL-83
3. Check IPDM E/R operation.BL-82
4. Replace BCM.BCS-16

REMOTE KEYLESS ENTRY SYSTEM BL-71
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2005 July 2005 FX
Panic alarm (horn and headlamp) does not activate
when panic alarm button is continuously pressed. 1. Check panic alarm mode.*
*: Panic alarm mode can be changed.
First check the panic alarm setting. BL-68
2. Check key fob battery and function.
BL-72
3. Check headlamp function.BL-83
4. Check horn function.BL-83
5. Check IPDM E/R operation.BL-82
6. Check key switch.BL-78
7. Replace key fob. Refer to ID Code Entry Procedure.
NOTE:
If the result of key fob function check with CONSULT-II is OK, key
fob is not malfunctioning. BL-84
8. Replace BCM.
BCS-16
Auto door lock operation does not activate properly.
(All other remote keyless entry system function is
OK.) 1. Check auto door lock operation mode.*
*: Auto door lock operation mode can be changed.
First check the auto door lock operation setting. BL-68
2. Replace BCM.
BCS-16
Keyless power window down (open) operation does
not activate properly.
(All other remote keyless entry system function is
OK.) 1. Check power window down operation mode.*
*: Power window down operation mode can be changed.
First check the power window down setting. BL-68
2. Check power window function.
GW-15
3. Replace BCM.BCS-16
Map lamp and ignition keyhole illumination opera-
tion does not activate properly. 1. Check map lamp and ignition keyhole illumination operation.
BL-832. Check door switch.BL-74
3. Replace BCM.BCS-16
Symptom Diagnoses/service procedure Reference
page

BL-72
REMOTE KEYLESS ENTRY SYSTEM
Revision: 2005 July 2005 FX
Check Key Fob Battery and FunctionAIS004MK
1. CHECK KEY FOB BATTERY
1. Remove key fob battery. Refer to BL-88, "
Key Fob Battery Replacement" .
2. Measure voltage between battery positive and negative termi- nals, (+) and ( −).
NOTE:
Key fob does not function if battery is not set correctly.
OK or NG
OK >> GO TO 2.
NG >> Replace battery.
2. CHECK KEY FOB FUNCTION
With CONSULT-II
Check key fob function in “DATA MONITOR” mode with CONSULT-
II. When pushing each button of key fob, the corresponding monitor
item should be turned as follows.
OK or NG
OK >> Key fob is OK.
NG >> Replace key fob. Voltage : 2.5 – 3.0V
SEL237W
Condition Monitor item
Pushing LOCK KEYLESS LOCK : ON
Pushing UNLOCK KEYLESS UNLOCK : ON
Keep pushing UNLOCK RKE KEEP UNLK : ON
Pushing PANIC KEYLESS PANIC : ON
Pushing LOCK and UNLOCK at the
same time RKE LCK-UNLOCK : ON
PIIA6468E