2005 INFINITI FX35 horn

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Revision: 2005 July 2005 FX
System DescriptionAIS004MB
INPUTS
Power is supplied at all times

to BCM terminal 55

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

to BCM terminal 42

through 15A fuse (No. 22, located in the fuse and fusible link box).
When the key switch is ON (key is inserted in ignition key cylinder), power is supplied

to BCM terminal 37

through key switch terminal 1 and 2

through 15A fuse (No. 22, located in the fuse and fusible link box).
When the ignition switch is ACC or ON, power is supplied

to BCM terminal 11

through 10A fuse [No. 6, located in the fuse block (J/B)].
When the ignition switch is ON or START, power is supplied

to BCM terminal 38

through 15A fuse [No. 1, located in the fuse block (J/B)].
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.
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 rear 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 meter terminal 13

through rear 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) terminals 7 and 8

through body grounds B15 and B45
Key fob signal is inputted to remote keyless entry receiver (the antenna of the system is built in remote keyless
entry receiver).

to BCM terminal 20

from remote keyless entry system controls operation of the
The remote keyless entry system controls operation of the

power door lock

hazard and horn reminder

auto door lock

panic alarm

keyless power window down (open)

room lamp and key ring illumination

BL-58
REMOTE KEYLESS ENTRY SYSTEM
Revision: 2005 July 2005 FX
OPERATED PROCEDURE
Power Door Lock Operation
BCM receives a LOCK signal from key fob. BCM locks all doors with input of LOCK signal from key fob.
When an UNLOCK signal is sent from key fob once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from key fob again within 5 seconds, all other door will be unlocked.
Power door lock operation mode can be changed using “DOOR LOCK-UNLOCK SET” mode in “WORK SUP-
PORT” of “POWER DOOR LOCK SYSTEM”.
Refer to BL-68, "
Work Support" .
Power door lock operation mode can be changed also on the display.
Refer to AV- 6 0 , "
SETTING SCREEN" . (without navigation system)
Refer to AV- 9 4 , "
Vehicle Electronic Systems" . (with navigation system)
Hazard and Horn Reminder
When the doors are locked or unlocked by key fob, power is supplied to hazard warning lamp and lamp flash
as follows

LOCK operation: C mode (flash twice) or S mode (flash twice)

UNLOCK operation: C mode (flash once) or S mode (do not flash)
BCM outputs to IPDM E/R for horn reminder signal as DATA LINE (CAN H line and CAN L line).
The hazard and horn reminder has C mode (horn chirp mode) and S mode (non-horn chirp mode).
Operating function of hazard and horn reminder
Hazard and horn reminder do not operate if any door switch is ON (any door is OPEN).
How to change hazard and horn reminder mode
With CONSULT-II
Hazard and horn reminder can be changed using “MULTI ANSWER BACK SET” mode in “WORK SUPPORT”.
Refer to BL-68, "
Work Support" .
Without CONSULT-II
When LOCK and UNLOCK signals are sent from the key fob for more than 2 seconds at the same time, the
hazard and horn reminder mode is changed and hazard warning lamp flashes and horn sounds as follows:
Auto Door Lock Operation
Auto lock function signal is sent for operation when any of the following signals are not sent within 1 minute
after the unlock signal is sent from the key fob:

when door switch is turned ON for open.

when the key switch is turned ON.

when the lock signal is sent from the key fob.
Auto door lock mode can be changed using “AUTO LOCK SET” mode in “WORK SUPPORT”.
Refer to BL-68, "
Work Support" .
Auto door lock mode can be changed also on the display.
C mode S mode
Remote controller
operation Lock Unlock Lock Unlock
Hazard warning lamp
flash Twice Once Twice —
Horn sound Once — — —
SEL153WA

REMOTE KEYLESS ENTRY SYSTEM BL-59
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Refer to AV- 6 0 , "SETTING SCREEN" . (without navigation system)
Refer to AV- 9 4 , "
Vehicle Electronic Systems" . (with navigation system)
Panic Alarm Operation
When key switch is OFF (when ignition key is not inserted in key cylinder), BCM turns on and off horn and
headlamp intermittently with input of PANIC ALARM signal from key fob.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from key fob.
Panic alarm operation mode can be changed using “PANIC ALARM SET” mode in “WORK SUPPORT”.
Refer to BL-68, "
Work Support" .
For detailed description, refer to BL-186, "
VEHICLE SECURITY (THEFT WARNING) SYSTEM" .
Keyless Power Window Down (Open) Operation
When key fob unlock switch is turned ON with ignition switch OFF, and key fob unlock switch is detected to be
on continuously for 3 seconds, the driver's door and passenger's door power windows are simultaneously
opened.
Power window is operated to open and the operation continues as long as the key fob unlock switch is
pressed.
Keyless power window down operation mode can be changed using “PW DOWN SET” mode in “WORK SUP-
PORT”. Refer to BL-68, "
Work Support"
Room Lamp and Ignition Key Ring Illumination Operation
When the following conditions come:

condition of interior lamp switch is DOOR position;

door switch OFF (when all the doors are closed);
Remote keyless entry system turns on interior lamp (for 30 seconds) with input of UNLOCK signal from key
fob. For detailed description, refer to LT- 1 5 9 , "
INTERIOR ROOM LAMP" .
CAN Communication System DescriptionAIS004MC
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 UnitAIS004RM
Refer to LAN-30, "CAN COMMUNICATION" .

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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-68
REMOTE KEYLESS ENTRY SYSTEM
Revision: 2005 July 2005 FX
Work Support
*: Perform this mode always in the state of C mode. Refer to BL-58, "Hazard and Horn Reminder" .
HORN CHIRP SET*
*: Perform this mode always in the state of C mode. Refer to BL-58, "Hazard and Horn Reminder" .
This mode can be changed also on the display.
Refer to AV-60, "
SETTING SCREEN" . (without navigation system)
Refer to AV-94, "
Vehicle Electronic Systems" . (with navigation system)
HAZARD LAMP BACK SET*
*: Perform this mode always in the state of C mode. Refer to BL-58, "Hazard and Horn Reminder" .
This mode can be changed also on the display.
Refer to AV-60, "
SETTING SCREEN" . (without navigation system)
Refer to AV-94, "
Vehicle Electronic Systems" . (with navigation system)
HORN This test is able to check panic alarm and horn reminder operations.
The horn activate for 0.5 seconds after “ON” on CONSULT-II screen is touched.
DOOR LOCK This test is able to check door lock actuator operation.

The all door lock actuator are locked when “ALL LOCK” on CONSULT-II screen is touched.

The all door lock actuator are unlocked when “ALL UNLOCK” on CONSULT-II screen is touched.

The door lock actuator (driver side) is unlocked when “DR UNLOCK” on CONSULT-II screen is
touched.

The all door lock actuator (except driver side) are unlocked when “OTHER UNLOCK” on CON-
SULT-II screen is touched.
TRUNK/BACK DOOR This is displayed even when it is not equipped. Test Item Description
Test Item Description
HORN CHIRP SET* Horn reminder mode can be changed in this mode. The horn reminder mode will be
changed when “CHANGE SETT” on CONSULT-II screen is touched.
HAZARD LAMP SET* Hazard reminder mode can be changed in this mode. The hazard reminder mode will be
changed when “CHANGE SETT” on CONSULT-II screen is touched.
MULTI ANSWER BACK SET Hazard and horn reminder mode can be changed in this mode. The hazard and horn
reminder mode will be changed when “CHANGE SETT” on CONSULT-II screen is touched.
AUTO LOCK SET Auto locking function mode can be changed in this mode. The function mode will be
changed when “CHANGE SETT” on CONSULT-II screen is touched.
PANIC ALRM SET Panic alarm operation mode can be changed in this mode. The operation mode will be
changed when “CHANGE SETT” on CONSULT-II screen is touched.
PW DOWN SET Keyless power window down (open) operation mode can be changed in this mode. The
operation mode will be changed when“CHANGE SETT” on CONSULT-II screen is touched.
Horn chirp function ON OFF
MODE1 MODE2 MODE3 MODE4
Hazard lamp operation mode Nothing Unlock only Lock only Lock and Unlock

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Revision: 2005 July 2005 FX
MULTI ANSWER BACK SET
AUTO LOCK SET
PANIC ALARM SET
PW DOWN SET
Work FlowAIS004MI
1. Check the symptom and customer's requests.
2. Understand outline of system. Refer to BL-57, "
System Description" .
3. Confirm that power door lock system operates normally. Refer to BL-21, "
POWER DOOR LOCK SYSTEM" .
4. Repair or replace any malfunctioning parts. Refer to BL-70, "
Trouble Diagnosis Chart by Symptom" .
5. INSPECTION END
MODE 1
(C mode) MODE 2
(S mode)
Key fob operation Lock Unlock Lock Unlock
Hazard warning lamp flash Twice Once Twice —
Horn sound Once — — —
MODE 1 MODE 2 MODE 3
Auto locking function 1 minutes Nothing 5 minutes
MODE 1 MODE 2 MODE 3
Key fob operation 0.5 seconds Nothing 1.5 seconds
MODE 1 MODE 2 MODE 3
Key fob operation 3 seconds Nothing 5 seconds

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
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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

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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
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