2008 INFINITI QX56 key

OUTSIDE KEY ANTENNADLK-93
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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OUTSIDE KEY ANTENNA
DescriptionINFOID:0000000001539001
Detects whether the Intelligent Key is in the operating range of the outside antennas.
Front outside antennas are integrated in front outside door handles (driver side, passenger side) to allow lock-
ing and unlocking of door locks when the Intelligent Key is present.
Rear bumper antenna is mounted on the rear bumper and is used to allow the back door and glass hatch
switch assembly opening of the back door when the Intelligent Key is present.
Component Function CheckINFOID:0000000001539002
1.CHECK DOOR REQUEST SWITCHES
Check that door request switches operate normally.
Is the inspection result normal?
YES >> GO TO 2
NO >> Inspect door request switches. Refer to DLK-79, "
ComponentFunctionCheck".
2.CHECK OUTSIDE KEY ANTENNAS FUNCTION
Be sure that Intelligent Key is in each outside key antenna detection range.
Does door lock/unlock when each request switch is pressed?
YES >> GO TO 3
NO >> Refer to DLK-93, "
Diagnosis Procedure".
3.CHECK REAR ANTENNA FUNCTION
Be sure that Intelligent Key is in rear bumper antenna detection range.
Be sure that back door close switch is not in the "CANCEL" position.
Does power back door open when back door switch is operated?
YES >> Outside key antennas are OK.
NO >> Refer to DLK-93, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001539003
1.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector M70 terminals 17, 19, 37 and ground with an oscillo- scope.
Is the inspection result normal?
YES >> Outside key antenna is OK.
NO >> GO TO 2
2.CHECK OUTSIDE KEY ANTENNA CIRCUIT
1. Disconnect Intelligent Key unit connector and outside key antenna connector.
Connector Item Te r m i n a l s
Condition Signal
(Reference value)
(+) (-)
M70 Rear
bumper
antenna
17
Ground Request
switch is
pushed
Front out-
side an-
tenna LH
19
Front out-
side an-
tenna RH 37
WIIA1198E
SIIA1910J
Revision: March 2010
2008 QX56

DLK-94
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
OUTSIDE KEY ANTENNA
2. Check continuity between each outside key antenna harness connector (B) D15 (driver side) or D115
(passenger side), rear bumper antenna connector (C) C7 terminals 1, 2 and Intelligent Key unit harness
connector (A) M70 terminals 17, 18, 19, 20, 37, and 38.
3. Check continuity between each outside key antenna harness connector terminals 1, 2 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness between outside key antenna and Intelligent Key unit.
3.CHECK OUTSIDE KEY ANTENNA POWER SUPPLY
1. Replace outside key antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit connector and outside key antenna connector.
3. Check signal between Intelligent Key unit connector terminals 17, 19, 37 and ground with an oscilloscope.
Is the inspection result normal?
YES >> Replace outside key antenna.
NO >> Replace Intelligent Key unit. Refer to SEC-116, "
Removal and Installation".
Item Connector Terminal Connector Terminal Continuity
Rear
bumper an- tenna C: C7 1
A: M70 17
Ye s
21
8
Front out-
side anten- na LH B: D15 11
9
22 0
Front out-
side anten-
na RH B: D115
13
7
23 8
Item Connector Terminal Continuity
Rear bumper anten- na C: C7 1
Ground No
2
Front outside anten- na LH B: D151
2
Front outside anten- na RH B: D115 1
2
ALKIA0652ZZ
Connector Item Te r m i n a l s
Condition Signal
(Reference value)
(+) (-)
M70 Rear
bumper
17
Ground Request
switch is
pushed
LH side 19
RH side 37
WIIA1198E
SIIA1910J
Revision: March 2010
2008 QX56

STEERING LOCK UNITDLK-95
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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STEERING LOCK UNIT
Diagnosis ProcedureINFOID:0000000001539004
1.CHECK STEERING LOCK SOLENOID POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect steering lock solenoid connector.
3. Check voltage between steering lock solenoid harness connector M15 terminal 1 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace steering lock solenoid power supply circuit.
2.CHECK STEERING LOCK SOLENOID GROUND CIRCUIT
Check continuity between steering lock sol enoid harness connector M15 terminal 4 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace the steering lock solenoid ground cir- cuit.
3.CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1. Connect steering lock solenoid connector.
2. Check voltage between Intelligent Key unit harness connector M70 terminal 1 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 6
4.CHECK STEERING LOCK COMMUNICATION SIGNAL
Check signal between Intelligent Key unit connector M70 terminal 32 and ground with oscilloscope. 1 - Ground : Battery voltage
WIIA1202E
4 - Ground
: Continuity should exist.
WIIA1203E
1 - Ground : Approx. 5V
WIIA1204E
Revision: March 2010 2008 QX56

DLK-96
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
STEERING LOCK UNIT
Is the inspection result normal?
YES >> GO TO 5
NO >> GO TO 6
5.CHECK STEERING LOCK SOLENOID COMMUNICA
TION CIRCUIT FOR OPEN
1. Disconnect Intelligent Key unit and steering lock solenoid connectors.
2. Check continuity between Intelligent Key unit harness connector (B) M70 terminals 1, 32 and steering lock solenoid connector (A) M15 terminals 2, 3.
Is the inspection result normal?
YES >> Replace steering lock solenoid. • After replacing steering lock solenoid, perform regis-
tration procedure. Refer to SEC-13, "
System Descrip-
tion".
NO >> Repair or replace harness between steering lock sole-
noid and Intelligent Key unit.
6.CHECK STEERING LOCK SOLENOID COMMUNICATION CIRCUIT FOR SHORT
1. Disconnect Intelligent Key unit and steering lock solenoid connectors.
2. Check continuity between steering lock so lenoid connector M15 terminals 2, 3 and ground.
Is the inspection result normal?
YES >> Replace Intelligent Key unit. Refer to SEC-116,
"Removal and Installation".
NO >> Repair or replace harness between steering lock sole-
noid and Intelligent Key unit.
Connector Te r m i n a l s
Condition Signal (V)
(Reference value)
(+) (–)
M70 32 Ground Ignition
switch is
pushed
WIIA1205ESIIA1911J
1 - 2 : Continuity should exist.
32 - 3 : Continuity should exist.
ALKIA0661ZZ
2 - Ground : Continuity should not exist.
3 - Ground : Continuity should not exist.
ALKIA0662ZZ
Revision: March 2010 2008 QX56

A/T SHIFT SELECTOR (PARK POSITION SWITCH)DLK-97
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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A/T SHIFT SELECTOR (PARK POSITION SWITCH)
Diagnosis ProcedureINFOID:0000000001539005
1.CHECK A/T SHIFT SELECTOR (PARK POSITION SWITCH) INPUT SIGNAL
1. Turn ignition switch OFF.
2. While pressing the ignition knob switch, check voltage between Intelligent Key unit harness connector M70 terminal 39 and ground.
Is the inspection result normal?
YES >> Replace Intelligent Key unit. Refer to SEC-116,
"Removal and Installation".
NO >> GO TO 2
2.CHECK A/T SHIFT SELECTOR (PARK POSI TION SWITCH) POWER SUPPLY CIRCUIT
1. Disconnect A/T shift selector (park position switch) connector.
2. While pressing the ignition knob switch, check voltage between A/T shift selector (park position switch) harness connector M203
terminal 5 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness or ignition knob switch.
3.CHECK A/T SHIFT SELECTOR (PARK POSITION SWITCH)
Check continuity between A/T shift selector (park position switch) terminals 5 and 6.
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace A/T shift selector (park position switch).
4.CHECK A/T SHIFT SELECTOR (PARK POSITION SWITCH) CIRCUIT
1. Disconnect Intelligent Key unit connector.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M70 39 Ground A/T shift selector lever is in "P"
position
Battery voltage
Other than above 0
WIIA1211E
5 – Ground : Battery voltage.
ALKIA0663ZZ
Component Terminals ConditionContinuity
A/T shift se- lector (park position
switch) 56A/T shift selector lever is in "P"
position
Ye s
Other than above No
ALKIA0664ZZ
Revision: March 2010 2008 QX56

DLK-98
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
A/T SHIFT SELECTOR (PARK POSITION SWITCH)
2. Check continuity between Inte
lligent Key unit harness connector
(A) M70 terminal 39 and A/T shift selector (park position switch)
harness connector (B) M203 terminal 6.
3. Check continuity between Inte lligent Key unit harness connector
(A) M70 terminals 39 and ground.
Is the inspection result normal?
YES >> A/T shift selector (park position switch) circuit is OK.
NO >> Repair or replace harness. 39 – 6
: Continuity should exist.
39 – Ground : Continuity should not exist.
ALKIA0665ZZ
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.
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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