horn INFINITI QX56 2006 Factory User Guide

BL-60
REMOTE KEYLESS ENTRY SYSTEM
Revision: November 20092006 QX56
3. CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and
ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.
Trouble DiagnosesEIS00601
SYMPTOM CHART
NOTE:

Always check the "Trouble Diagnosis Procedure" before troubleshooting. Refer to BL-59, "Trouble Diag-
nosis Procedure" .

Always check keyfob battery before replacing keyfob. Refer to BL-65, "Keyfob Battery and Function
Check" .

The panic alarm operation and power back door opener operation of remote keyless entry system do not
activate with the ignition key inserted in the ignition key cylinder.

Use Remote Keyless Entry Tester J-43241 (follow instructions on tester) to check operation of keyfob
before replacing keyfob.
ConnectorTerminals
Continuity
(+) (-)
M20 67Ground Yes
LIIA1040E
Symptom Diagnoses/service procedureReference
page
All functions of remote keyless entry system do not
operate. 1. Keyfob battery and function check (use Remote Keyless Entry
Tester J-43241)
NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning. BL-65
2. Check BCM and keyless receiver.
BL-66
The new ID of keyfob cannot be entered.1. Keyfob battery and function check (use Remote Keyless Entry
Tester J-43241)
NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning.
BL-652. Key switch and key lock solenoid (insert) check
BL-62
3. Door switch checkBL-63
4. ACC power checkBL-68
5. Replace BCM.BCS-20
Door lock or unlock does not function.
(If the power door lock system does not operate
manually, check power door lock system. Refer to
BL-16, "
POWER DOOR LOCK SYSTEM" )1. Keyfob battery and function check (use Remote Keyless Entry
Tester J-43241)
NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning.
BL-65
2. Replace BCM.
BCS-20
Hazard and horn reminder does not activate prop-
erly when pressing lock or unlock button of keyfob.1. Check hazard and horn reminder mode with CONSULT-II
NOTE:
Hazard and horn reminder mode can be changed.
First check the hazard and horn reminder mode setting.
BL-57,
"Active
Te s t"
2. Door switch check
BL-63
3. Replace BCM.BCS-20

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Hazard reminder does not activate properly when
pressing lock or unlock button of keyfob.
(Horn reminder OK)1. Check hazard reminder mode with CONSULT-II
NOTE:
Hazard reminder mode can be changed.
First check the hazard reminder mode setting.
BL-57
2. Check hazard function with hazard switch
—
3. Replace BCM. BCS-20
Horn reminder does not activate properly when
pressing lock or unlock button of keyfob.
(Hazard reminder OK)1. Check horn reminder mode with CONSULT-II
NOTE:
Horn reminder mode can be changed.
First check the horn reminder mode setting.
BL-57
2. Check horn function with horn switch
—
3. IPDM E/R operation check BL-68
4. Replace BCM.BCS-20
Back door open/close operation is not carried out
with keyfob operation.
(The automatic back door system is normal.)1. Keyfob battery and function check (use Remote Keyless Entry
Tester J-43241)
NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning.
BL-65
2. Key switch (insert) check
BL-62
3. Check that glass hatch is closed —
4. Remote keyless entry receiver system BL-66
5. Replace BCM.BCS-20
Room lamp, ignition keyhole illumination and step
lamp operation do not activate properly.1. Room lamp operation check
BL-70
2. Ignition keyhole illumination operation checkBL-70
3.Step lamp operation checkLT- 1 3 5
4. Door switch check BL-63
5. Replace BCM.BCS-20
Panic alarm (horn and headlamp) does not activate
when panic alarm button is continuously pressed.1. Keyfob battery and function check (use Remote Keyless Entry
Tester J-43241)
NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning. BL-65
2. Key switch and key lock solenoid (insert) check
BL-62
3. Replace BCM.BCS-20
Auto door lock operation does not activate properly.
(All other remote keyless entry functions OK.)1. Check auto door lock operation mode with CONSULT-II
NOTE:
Auto door lock operation mode can be changed.
First check the auto door lock operation mode setting.
BL-57
2. Replace BCM.
BCS-20
Keyless power window down (open) operation does
not activate properly.
(All other remote keyless entry functions OK.)1. Check power window down operation mode with CONSULT-II
NOTE:
Power window down operation mode can be changed.
First check the power window down operation mode setting.
BL-57
2. Check power window function with switch
—
3. Replace BCM. BCS-20
SymptomDiagnoses/service procedureReference
page

REMOTE KEYLESS ENTRY SYSTEMBL-69
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2. CHECK IPDM E/R INPUT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and horn relay.
3. Check continuity between IPDM E/R connector E122 terminal 45 and horn relay connector H-1 terminal 1.
4. Check continuity between IPDM E/R connector E122 terminal 45 and ground.
OK or NG
OK >> Further inspection is necessary. Refer to BL-60, "SYMP-
TOM CHART" .
NG >> Repair or replace harness 45 - 1
: Continuity should exist.
45 - Ground : Continuity should not exist.WIIA0679E

BL-70
REMOTE KEYLESS ENTRY SYSTEM
Revision: November 20092006 QX56
Check Hazard FunctionEIS00608
1. CHECK HAZARD WARNING LAMP
Does hazard indicator flash with hazard switch?
Ye s o r N o
Yes >> Hazard warning lamp circuit is OK.
No >> Check hazard indicator. Refer to LT- 8 0 , "
TURN SIGNAL AND HAZARD WARNING LAMPS" .
Check Horn FunctionEIS00609
First, perform the "SELF-DIAG RESULTS" in "BCM" with CONSULT-II, then perform the trouble diagnosis of
malfunction system indicated in "SELF-DIAG RESULTS" of "BCM".
1. CHECK HORN FUNCTION
Does horn sound with horn switch?
Ye s o r N o
Yes >> Horn circuit is OK.
No >> Check horn circuit. Refer to WW-55, "
HORN" .
Check Headlamp FunctionEIS0060A
First, perform the "SELF-DIAG RESULTS" in "BCM" with CONSULT-II, then perform the trouble diagnosis of
malfunction system indicated in "SELF-DIAG RESULTS" of "BCM".
1. CHECK HEADLAMP OPERATION
Does headlamp come on when turning lighting switch ON?
Ye s o r N o
Yes >> Headlamp operation circuit is OK.
No >> Check headlamp circuit. Refer to LT- 5 , "
HEADLAMP (FOR USA)" .
Check Map Lamp Illumination FunctionEIS0060B
1. CHECK MAP LAMP ILLUMINATION FUNCTION
When map lamp switch is in DOOR position, open the front door LH or RH.
OK or NG
OK >> System is OK.
NG >> Check map lamp illumination circuit. Refer to LT- 1 5 7 , "
ILLUMINATION" .
Map lamp and ignition keyhole illumination should illuminate.

BL-76
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: November 20092006 QX56
System DescriptionEIS0060F
DESCRIPTION
Operation Flow

Setting the vehicle security system
Initial condition

Ignition switch is in OFF position.
Disarmed phase

When the vehicle is being driven or when doors or glass hatch is open, the vehicle security system is set
in the disarmed phase on the assumption that the owner is inside or near the vehicle.
Pre-armed phase and armed phase

The vehicle security system turns into the "pre-armed" phase when hood, glass hatch and all doors are
closed and locked by keyfob. The security indicator lamp illuminates for 30 seconds, then the system
automatically shifts into the "armed" phase.
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 or the keyfob.
2. Open the power back door with the keyfob. When the power back door is closed after opening the power back door with the keyfob, the system returns to the armed phase.
Activating the alarm operation of the vehicle security system
Make sure the system is in the armed phase.
When one of the following operations is performed, the system sounds the horns and flashes the headlamps
for about 50 seconds.
1. Engine hood, glass hatch or any door is opened before unlocking door with key or keyfob.
7. BCM M18, M19, M20
(view with instrument panel LH
removed) 8. Horn E3
(view with grille removed) 9. Front door lock assembly LH (key
cylinder switch) D14
10. Main power window and door lock/ unlock switch D7, D8
Power window and door lock/unlock
switch RH D105 11. Front door switch
LH B8
RH B108 12. Rear door switch
LH B18
RH B116
13. Back door latch (door ajar switch) D503 Glass hatch ajar switch D707 14. Combination meter M24
15. Hood switch E8
16. RH headlamp
PIIA1367E

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2. Door is unlocked without using key or keyfob.
3. Power back door is opened without using the keyfob.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times

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

to combination meter (security indicator lamp) terminal 8 and

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

to BCM terminal 70

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

to BCM terminal 57

through 15A fuse (No. 25, located in the fuse and fusible link box)

to horn relay terminal 2

through 20A fuse (No. 52, located in the IPDM E/R) and

through 20A fuse (No. 53, 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. 4, located in the fuse block (J/B)]

to BCM terminal 11.
Ground is supplied

to BCM terminal 67

through body grounds M57, M61 and M79 and

to IPDM E/R terminals 38 and 59

through body ground E9, E15 and E24.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the vehicle security system is controlled by the doors, hood and glass hatch.
To activate the vehicle security system, BCM must receive signals indicating the doors, hood and glass hatch
are closed and the doors are locked.
When a door is open, BCM terminal 12, 13, 42, 47 or 48 receives a ground signal from each door switch.
When front door LH is unlocked, BCM terminal 22 receives a signal from terminal 14 of main power window
and door lock/unlock switch.
When front door RH is unlocked, BCM terminal 22 receives a signal from terminal 16 of power window and
door lock/unlock switch RH or the rear power window switch LH or RH.
When the back door is open, BCM terminal 43 receives a ground signal

from terminal 7 of the back door latch (door ajar switch)

through body grounds B7 and B19.
When the glass hatch is open, BCM terminal 42 receives a ground signal

from terminal + of the glass hatch ajar switch

through glass hatch ajar switch case ground.
VEHICLE SECURITY SYSTEM ALARM OPERATION
The vehicle security system is triggered by

opening a door

opening the hood

opening the glass hatch

unlocking door without using the key or keyfob.
The vehicle security system will be triggered once the system is in armed phase,

when BCM receives a ground signal at terminals 12, 13, 47, 48 (door switch), terminal 42 (glass hatch ajar
switch) or terminal 43 [back door latch (door ajar switch)], or IPDM E/R terminal 41 (hood switch) receives
a ground signal.
Power is supplied at all times

to horn relay terminal 2

BL-78
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: November 20092006 QX56

through 15A fuse (No. 25, located in fuse and fusible link box).
When the vehicle security system is triggered, ground is supplied intermittently

from IPDM E/R terminal 45

to headlamp high relay and

to horn relay terminal 1.
The headlamps flash and the horn sounds intermittently.
The alarm automatically turns off after 50 seconds, but will reactivate if the vehicle is tampered with again.
VEHICLE SECURITY SYSTEM DEACTIVATION
To deactivate the vehicle security system, a door must be unlocked with the key or keyfob.
When the key is used to unlock the front door LH, BCM terminal 22 receives signal

from terminal 14 of the main power window and door lock/unlock switch.
When the BCM receives this signal or unlock signal from keyfob, the vehicle security system is deactivated.
(Disarmed phase)
PANIC ALARM OPERATION
Remote keyless entry system may or may not operate vehicle security system (horn and headlamps) as
required.
When the remote keyless entry system is triggered, ground is supplied intermittently

from IPDM E/R terminal 45

to headlamp high relay and

to horn relay terminal 1.
The headlamp flashes and the horn sounds intermittently.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob.
CAN Communication System DescriptionEIS0060G
Refer to LAN-26, "CAN COMMUNICATION" .

BL-86
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: November 20092006 QX56
Terminals and Reference Value for IPDM E/REIS0060K
1*: when horn reminder is ON.
2*: L/W is for USA.
3*: Y is for Canada.
CONSULT-II Function (BCM)EIS0060L
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
Te r m i n a l Wire
Color Item
Condition Voltage (V)
(Approx.)
38 B Ground —0
39 L CAN-H ——
40 P CAN-L ——
41 Y/B Hood switch Hood closed
OFF 0V
Hood open ONBattery voltage
45 G/W Horn relay When doors locks are operated
using keyfob (OFF →
ON) *1 Battery voltage
→ 0V
52 L Headlamp low (LH) Ignition
SW ON Lighting
switch
2ND posi-
tion OFF
0V
ON Battery voltage
54 R/Y Headlamp low (RH) Ignition
SW ON Lighting
switch
2ND posi-
tion OFF
0V
ON Battery voltage
55 G Headlamp high (LH) Ignition
SW ON Lighting
switch
HIGH or
PA S S
position OFF
0V
ON Battery voltage
56 L/W *2
Y *3 Headlamp high (RH) Ignition
SW ON Lighting
switch
HIGH or
PA S S
position OFF
0V
ON Battery voltage
59 B Ground —0
BCM
diagnostic test item Diagnostic mode
Description
Inspection by part WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the
BCM for setting the status suitable for required operation, input/output sig-
nals are received from the BCM and received date is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to
them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be
read.
ECU PART NUMBER BCM part number can be read. CONFIGURATION Performs BCM configuration read/write functions.

BL-88
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: November 20092006 QX56
CONSULT-II APPLICATION ITEM
Data Monitor
Active Test
Work Support
Monitored ItemDescription
DOOR SW-AS Indicates [ON/OFF] condition of front door switch RH.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch LH.
BACK DOOR SW Indicates [ON/OFF] condition of back door latch.
TRNK OPN MNTR Indicates [ON/OFF] condition of glass hatch ajar switch.
ACC ON SW Indicates [ON/OFF] condition of ignition switch in ACC position.
IGN ON SW Indicates [ON/OFF] condition of ignition switch in ON position.
KEYLESS UNLOCK Indicates [ON/OFF] condition of unlock signal from keyfob.
KEYLESS LOCK Indicates [ON/OFF] condition of lock signal from keyfob.
KEY CYL LK-SW Indicates [ON/OFF] condition of lock signal from door key cylinder switch.
KEY CYL UN-SW Indicates [ON/OFF] condition of unlock signal from door key cylinder switch.
KEYLESS PBD Indicates [ON/OFF] condition of unlock signal from door key cylinder switch.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from lock/unlock switch.
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from lock/unlock switch.
HOOD SW Indicates [ON/OFF] condition of hood switch.
Test Item Description
THEFT IND This test is able to check security indicator lamp operation. The lamp will be turned on when
“ON ”
on CONSULT-II screen is touched.
HEADLAMP (HI) This test is able to check vehicle security lamp operation. The high beam headlamps will be acti-
vated for 0.5 seconds after “
ON” on CONSULT-II screen is touched.
VEHICLE SECURITY HORN This test is able to check vehicle security horn operation. The horns will be activated for 0.5 sec-
onds after
“ON ” on CONSULT-II screen is touched.
Test Item Description
SECURITY ALARM SET This mode can confirm and change security alarm ON-OFF setting.
THEFT ALM TRG The switch which triggered vehicle security alarm is recorded. This mode is able to confirm and
erase the record of vehicle security alarm. The trigger data can be erased by touching
“CLEAR ”
on CONSULT-II screen.

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Symptom ChartEIS0060O
*1: Make sure the system is in the armed phase.SYMPTOM PROCEDURE Diagnostic procedure
1 Vehicle security
system cannot be
set by
···· Door switch Refer to
BL-92, "
Door Switch Check" .
Lock/unlock switch Refer to BL-98, "
Door Lock/Unlock Switch Check" .
Door outside key Refer to BL-96, "
Front Door Lock Assembly LH (Key Cylinder Switch)
Check" .
BCM If the above systems are “OK ”, replace BCM. Refer to BCS-20, "
BCM" .
2 Security indicator
does not turn
“
ON ”. Combination meter Refer to BL-95, "
Combination Meter (Security Indicator Lamp) Check" .
BCM If the above systems are “OK ”, replace BCM. Refer to BCS-20, "
BCM" .
3 *1 Vehicle secu-
rity system does
not alarm when
···· Any door, hood or glass hatch
is opened. Refer to BL-92, "
Door Switch Check" .
Refer to BL-94, "
Hood Switch Check" .
If the above systems are “ OK”, replace BCM. Refer to BCS-20, "
BCM" .
4 Vehicle security
alarm does not
activate. Horn alarm
Refer to BL-98, "
Vehicle Security Horn Alarm Check" .
If the above systems are “ OK”, check horn system.
Refer to WW-55, "
HORN" .
Headlamp alarm Refer to BL-98, "
Vehicle Security Headlamp Alarm Check" .
If the above systems are “ OK”, replace BCM. Refer to BCS-20, "
BCM" .
5 Vehicle security
system cannot be
canceled by
····Door outside key
Refer to BL-96, "
Front Door Lock Assembly LH (Key Cylinder Switch)
Check" .
If the above systems are “ OK”, check main power window and door lock/
unlock switch.
Keyfob Check remote keyless entry function. Refer to
BL-65, "
Keyfob Battery and
Function Check" .
If the above systems are “ OK”, replace BCM. Refer to BCS-20, "
BCM" .