2005 INFINITI FX35 key

POWER DOOR LOCK SYSTEM BL-31
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2005 July 2005 FX
Schematic/Without Intelligent KeyAIS004LT
TIWM0321E

BL-32
POWER DOOR LOCK SYSTEM
Revision: 2005 July 2005 FX
Wiring Diagram -D/LOCK-/Without Intelligent KeyAIS004LU
FIG. 6
TIWM0975E

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-38
POWER DOOR LOCK SYSTEM
Revision: 2005 July 2005 FX
6. Touch “DOOR LOCK”.
7. Select diagnosis mode.
“WORK SUPPORT”, “DATA MONITOR” and “ACTIVE TEST”
are available.
CONSULT-II APPLICATION ITEMS
Work Support
Data Monitor
*: With Intelligent Key system
PIIA9922E
BCIA0031E
Work item Description
DOOR LOCK-UNLOCK SET Select unlock mode can be changed in this mode. Selects ON-OFF of select unlock mode.
ANTI-LOCK OUT SET Key reminder door mode can be changed in this mode. Selects ON-OFF of key reminder door
mode.
Monitor item Content
IGN ON SW Indicates [ON/OFF] condition of ignition switch in ON position.
KEY ON SW Indicates [ON/OFF] condition of key switch.
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from door lock and unlock switch.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch driver side.
DOOR SW-AS Indicates [ON/OFF] condition of front door switch passenger side.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
BACK DOOR SW Indicates [ON/OFF] condition of back door switch.
KEY CYL LK-SW Indicates [ON/OFF] condition of lock signal from key cylinder.
KEY CYL UN-SW Indicates [ON/OFF] condition of unlock signal from key cylinder.
KEYLESS LOCK Indicates [ON/OFF] condition of lock signal from key fob.
KEYLESS UNLOCK Indicates [ON/OFF] condition of unlock signal from key fob.
I-KEY LOCK* Indicates [ON/OFF] condition of lock signal from door request switch.
I-KEY UNLOCK* Indicates [ON/OFF] condition of unlock signal from door request switch.

BL-40
POWER DOOR LOCK SYSTEM
Revision: 2005 July 2005 FX
Trouble Diagnosis Chart by SymptomAIS004M0
Always check the “Work Flow” before troubleshooting. Refer to BL-36, "Work Flow" .
*1 : Lock operation
*2 : Unlock operation
*3 : Driver side
*4 : Except driver side Symptom Diagnoses service procedure
Reference
page
Key reminder door system does not operate properly. 1.Check key reminder door mode.*
*: Key reminder door mode can be changed.
First check key reminder door mode. BL-38
2. Check BCM power supply and ground cir-
cuit BL-41
3. Check key switch.
BL-46
4. Check door switch. BL-42
5. Replace BCM.BCS-16
Power door lock does not operate with door lock and unlock switch. 2. Check BCM power supply and ground cir-
cuit BL-412. Check door lock and unlock switch.
BL-41
3. Replace BCM.BCS-16
Power door lock does not operate with door key cylinder operation.
(Power door lock operate properly with door lock and unlock switch.) 1. Check front door key cylinder switch.
BL-53*1
BL-54*2
2. Replace power window main switch. –
Specific door lock actuator does not operate. 1. Check door lock actuator.
BL-50
*3
BL-51*4
2. Replace BCM.
BCS-16
All door lock actuator (except passenger side and fuel lid) does not
operate.*
*: Only model with intelligent key system. 1. Check select unlock relay circuit.
BL-55
Select unlock does not operate.
(All other power door lock system is “OK”.) 1. Check select unlock mode.*
*: Select unlock mode can be changed.
First check select unlock mode. BL-38
2. Replace BCM.
BCS-16
Fuel lid opener actuator does not operate.
(All door lock actuators operates properly.) 1.Check fuel lid opener actuator.
BL-52

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

POWER DOOR LOCK SYSTEM BL-47
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2005 July 2005 FX
2. CHECK KEY SWITCH (WITH INTELLIGENT KEY)
1. Disconnect key switch and ignition knob switch connector.
2. Check continuity between key switch or key switch and ignition knob switch terminals 3 and 4.
OK or NG
OK >> Check the following.

15A fuse (No. 22, located in fuse and fusible link block)

Harness for open or short between key switch and fuse

Harness for open or short between BCM and key switch
NG >> Replace key switch or key switch and ignition knob switch.
3. CHECK KEY SWITCH (WITHOUT INTELLIGENT KEY)
1. Disconnect key switch connector.
2. Check continuity between key switch terminals 1 and 2.
OK or NG
OK >> Check the following.

15A fuse (No. 22, located in fuse and fusible link block)

Harness for open or short between key switch and fuse

Harness for open or short between BCM and key switch
NG >> Replace key switch or key switch and ignition knob switch.
Terminal Condition of key switch Continuity
34 Key is inserted in IGN key cylinder. Yes
Key is removed from IGN key cylinder. No
PIIA6140E
Terminal Condition of key switch Continuity
12 Key is inserted in IGN key cylinder. Yes
Key is removed from IGN key cylinder. No
PIIA2627E

BL-48
POWER DOOR LOCK SYSTEM
Revision: 2005 July 2005 FX
Check Door Lock and Unlock SwitchAIS004M3
1. CHECK DOOR LOCK AND UNLOCK SWITCH INPUT SIGNAL
With CONSULT-II
Check door lock and unlock switch (“CDL LOCK SW” and “CDL
UNLOCK SW”) in DATA MONITOR mode with CONSULT-II.

When door lock and unlock switch is turned to LOCK:

When door lock and unlock switch is turned to UNLOCK:
Without CONSULT-II
1. Remove key from ignition key cylinder.
2. Check the signal between BCM connector M3 terminal 22 and ground with oscilloscope when door lock and unlock switch is turned “LOCK” or “UNLOCK”.
3. Make sure signals which are shown in the figure below can be detected during 10 second just after door lock and unlock switch
is turned “LOCK” or “UNLOCK”.
OK or NG
OK >> Door lock and unlock switch circuit is OK.
NG >> GO TO 2. CDL LOCK SW : ON
CDL UNLOCK SW : ON
PIIA6538E
Connector Terminal
(Wire color) Signal
(Reference value)
(+) (–)
M3 22(OR) Ground
PIIA6379E
PIIA1297E