2008 INFINITI QX56 keyless entry

DLK-42
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
KEY REMINDER FUNCTION
ALKIA0579ZZ
1. Horn E3
(view with hood open) 2. IPDM E/R E122, E124
(view with cover removed) 3. Horn relay H-1
4. Remote keyless entry receiver M25 (view with instrume nt panel RH removed) 5. Intelligent key warning buzzer E25 6. Combination meter M23, M24
7. Intelligent Key unit M70 (view with instrument panel LH removed) 8. BCM M18, M19, M20
(view with instrument panel LH removed) 9. Steering lock solenoid M15
(view with steering column removed)
10. Key switch and ignition knob switch M12 11. A/T shift selector (park position switch) M203
(view with center console removed)12. Inside key antenna 3 (front of center
console) M210
(view with center console removed)
13. Inside key antenna 1 (rear of center con- sole) M209 14. Inside key antenna 4 (overhead console
area) R210
(view with overhead console removed) 15. Inside key antenna 2 (luggage com-
partment) B76
(view with rear carpet removed)
16. Rear bumper antenna C7 (view with rear bumper removed) 17. Back door latch D503
18. Front outside antenna LH D15
Front outside antenna RH D115
19. Front door request switch LH D16 Front door request switch RH D116 20. Front door lock assembly LH (door un-
lock sensor) D14 21. Front door switch LH B8
RH B108
22. Rear door switch LH B18 RH B116
Revision: March 2010 2008 QX56

HAZARD AND BUZZER REMINDER FUNCTIONDLK-45
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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1. Horn E3 (view with hood open) 2. IPDM E/R E122, E124
(view with co ver removed) 3. Horn relay H-1
4. Remote keyless entry receiver M25 (view with instrume nt panel RH removed) 5. Intelligent key warning buzzer E25 6. Combination meter M23, M24
7. Intelligent Key unit M70 (view with instrument panel LH removed) 8. BCM M18, M19, M20
(view with instrument panel LH removed) 9. Steering lock solenoid M15
(view with steering column removed)
10. Key switch and ignition knob switch M12 11. A/T shift selector (park position switch) M203
(view with center console removed)12. Inside key antenna 3 (front of center
console) M210
(view with center console removed)
13. Inside key antenna 1 (rear of center con- sole) M209 14. Inside key antenna 4 (overhead console
area) R210
(view with overhead console removed) 15. Inside key antenna 2 (luggage com-
partment) B76
(view with rear carpet removed)
16. Rear bumper antenna C7 (view with rear bumper removed) 17. Back door latch D503
18. Front outside antenna LH D15
Front outside antenna RH D115
19. Front door request switch LH D16 Front door request switch RH D116 20. Front door lock assembly LH (door un-
lock sensor) D14 21. Front door switch LH B8
RH B108
22. Rear door switch LH B18 RH B116
Revision: March 2010 2008 QX56

REMOTE KEYLESS ENTRY RECEIVERDLK-99
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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REMOTE KEYLESS ENTRY RECEIVER
DescriptionINFOID:0000000001539006
Receives Intelligent Key operation and transmits to Intelligent Key unit.
Component Function CheckINFOID:0000000001539007
1.CHECK FUNCTION
With CONSULT-III
Check remote keyless entry receiver "RKE OPE COUN1" in Data Monitor mode with CONSULT-III.
Is the inspection result normal?
YES >> Remote keyless entry receiver is OK.
NO >> Refer to DLK-99, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001539008
1.CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check remote keyless entry receiver signal with an oscilloscope.
Is the inspection result normal?
YES >> GO TO 2
NO >> GO TO 5
2.REMOTE KEYLESS ENTRY RECEIV ER VOLTAGE CIRCUIT INSPECTION
Check voltage between remote keyless entry receiver connector M25 terminal 3 and ground using an oscillo-
scope.
Monitor item Condition
RKE OPE COUN1 Checks whether value changes when operating Intelligent Key.
Te r m i n a l s
Keyfob
condition Signal
(Reference value)
(+)
(–)
Remote
keyless
entry re- ceiver
connector Te r m i n a l
M25 2 Ground No function
Any button
is pressed
ALKIA0653ZZ
OCC3879D
OCC3880D
Revision: March 2010 2008 QX56

DLK-100
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
REMOTE KEYLESS ENTRY RECEIVER
Is the inspection result normal?
YES >> GO TO 3
NO >> GO TO 5
3.REMOTE KEYLESS ENTRY RECEIVER 5-VOLT CIRCUIT INSPECTION
Check voltage between remote keyless entry receiver connector
M25 terminal 4 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 5
4.REMOTE KEYLESS ENTRY RECEI VER GROUND CIRCUIT INSPECTION
Check continuity between remote keyless entry receiver connector
M25 terminal 1 and ground.
Is the inspection result normal?
YES >> Replace remote keyless entry receiver. Refer to SEC-
116, "Removal and Installation".
NO >> GO TO 5
5.HARNESS INSPECTION BETWEEN INTE LLIGENT KEY UNIT AND RKE RECEIVER
1. Disconnect remote keyless entry receiver and Intelligent Key unit connectors.
2. Check continuity between Intelligent Key unit connector (A) M70 terminals 8, 9, 21, 30 and remote keyless entry receiver connec-
tor (B) M25 terminals 1, 2, 3, 4.
3. Check continuity between remote keyless entry receiver con- nector (B) M25 terminals 1, 2, 3, 4 and ground.
Te r m i n a l s
Signal
(Reference value)
(+)
(–)
Remote keyless
entry receiver
connector Te r m i n a l
M25 3 Ground
ALKIA0654ZZ
PIIA2344E
4 - Ground : Approx. 5 volt.
ALKIA0655ZZ
1 - Ground: Continuity should exist.
ALKIA0656ZZ
1 - 8: Continuity should exist.
2 - 9 : Continuity should exist.
3 - 21 : Continuity should exist.
4 - 30 : Continuity should exist.
ALKIA0657ZZ
Revision: March 2010 2008 QX56

REMOTE KEYLESS ENTRY RECEIVERDLK-101
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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Is the inspection result normal?
YES >> Remote keyless entry re ceiver circuits are OK.
NO >> Repair or replace the harness between the remote keyless entry receiver and Intelligent Key unit. 1 - Ground : Continuity should not exist.
2 - Ground : Continuity should not exist.
3 - Ground : Continuity should not exist.
4 - Ground : Continuity should not exist.
Revision: March 2010
2008 QX56

DLK-102
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY BATTERY AND FUNCTION
INTELLIGENT KEY BATTERY AND FUNCTION
DescriptionINFOID:0000000001539009
The following functions are available when having and carrying electronic ID.
• Door lock/unlock
• Back door open
Remote control entry function and panic alarm functi
on are available when operating the remote buttons.
Component Function CheckINFOID:0000000001539010
1.CHECK FUNCTION
With CONSULT-III
Check remote keyless entry receiver "RKE OPE COUN1" in DATA MONITOR mode with CONSULT-III.
Is the inspection result normal?
YES >> Intelligent Key is OK.
NO >> Refer to DLK-102, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001539011
1.CHECK INTELLIGENT KEY BATTERY
Check by connecting a resistance (approximately 300 Ω) so that the
current value becomes about 10 mA.
Is the measurement value within specification?
YES >> GO TO 2
NO >> Replace Intelligent Key battery.
2.CHECK KEYFOB FUNCTION
Check keyfob function using Remote Keyless Entry Tester J-43241.
Does the test pass?
YES >> Keyfob is OK.
NO >> Replace keyfob. Refer to CONSULT-III Operation Man- ual.
Component InspectionINFOID:0000000001539012
1. REPLACE INTELLIGENT KEY BATTERY
1. Release the lock knob at the back of the Intelligent Key and remove the mechanical key.
Monitor item Condition
RKE OPE COUN1 Check that the numerical value is changing while operating the Intelligent Key.
Standard : Approx. 2.5 - 3.0V
OCC0607D
LEL946A
Revision: March 2010 2008 QX56

INTELLIGENT KEY BATTERY AND FUNCTIONDLK-103
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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2. Insert a flat-blade screwdriver (A) wrapped with a cloth into the slit of the corner and twist it to separate the upper part from the
lower part.
CAUTION:
• Do not touch the circuit board or battery terminal.
• The keyfob is water-resistant. However, if it does get wet,immediately wipe it dry.
3. Replace the battery with new one.
4. Align the tips of the upper and lower parts, and then push them together until it is securely closed.
CAUTION:
• When replacing battery, keep dirt, grease, and other for-eign materials off the electrode contact area.
5. After replacing the battery, check that all Intelligent Key func- tions work properly.
Is the inspection result normal?
YES >> Intelligent Key is OK.
NO >> Check remote keyless entry receiver. Refer to DLK-99,
"ComponentFunctionCheck".
Special Repair RequirementINFOID:0000000001539013
Refer to CONSULT-III Operation Manual.
PIIB6221E
PIIB6222E
Revision: March 2010 2008 QX56

AUTOMATIC BACK DOOR SELF-DIAGNOSIS PROCEDUREDLK-119
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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AUTOMATIC BACK DOOR SELF-DIAGNOSIS PROCEDURE
Self-Diagnosis ProcedureINFOID:0000000001539033
INPUT SIGNAL CHECK MODE
Input signal check mode allows testing of swit ch input signal to the back door control unit.
To activate input signal check mode on the automatic sliding door, perform the following steps:
1. Turn ignition switch OFF.
2. Turn back door close switch to CANCEL (system cancelled).
3. Place A/T shift selector lever in P position.
4. Using the inside emergency release lever, open the back door.
5. Have an assistant press and hold the back door handle switch.
6. While the assistant continues to hold the back door handle switch, turn ignition switch ON (DO NOT start
engine).
7. After approximately 5 seconds, the back door warning chime will sound for 0.5 seconds.
8. Release the back door handle switch.
9. Within 8 seconds of the back door warning chime sounding, press and hold the power liftgate switch.
10. After approximately 5 seconds, the back door warning chime will sound for 1 second.
11. Release the power liftgate switch.
12. The input signal check mode is now initialized.
The input signal check mode can test the following inputs. The back door warning chime will sound for approx-
imately 0.5 second each time a switch signal input oc curs. Use this test when one of these inputs is not
responding during normal automatic back door operation.
*Back door warning chime should sound as soon as vehicle moves.
Turn ignition switch OFF to end input signal check mode.
OPERATING CHECK MODE
Operating check mode allows self-diagnos is of the automatic back door system.
To activate operating check mode on the automatic back door, perform the following steps:
1. Turn ignition switch OFF.
2. Turn back door close switch to CANCEL (system cancelled).
3. Place A/T shift selector lever in P position.
4. Using the inside emergency release lever, open the back door.
5. Have an assistant press and hold the back door handle switch.
6. While the assistant continues to hold the back door handle switch, turn ignition switch ON (DO NOT start engine).
7. After approximately 5 seconds, the back door warning chime will sound for 0.5 second.
8. Release the back door handle switch.
Switch signal OperationRefer to
Power liftgate switch OFF → ONDLK-125
Back door close switch (CLOSE) OFF → ON DLK-127
Back door close switch (CANCEL) OFF → ON DLK-128
Back door handle switch OFF → ON DLK-134
A/T shift selector (park position switch) P position → other than P position DLK-97
Vehicle speed* Vehicle speedTM-48
Remote keyless entry signal Keyfob switch OFF → ON DLK-99
Door lock/unlock signal LOCK → UNLOCK DLK-70
Pinch strip LH signal OFF → ON DLK-129
Pinch strip RH signal OFF → ON DLK-129
Revision: March 2010 2008 QX56