2009 INFINITI QX56 Factory Service Manual

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Page 905 of 4171

INFINITI QX56 2009 Factory Service Manual PASSENGER SELECT UNLOCK RELAYDLK-93
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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PASSENGER SELECT UNLOCK RELAY
DescriptionINFOID:0000000003775762
Controls th

Page 906 of 4171

INFINITI QX56 2009 Factory Service Manual DLK-94
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
PASSENGER SELECT UNLOCK RELAY
1. Check continuity between passenger select unlock relay con-
nector (A) M7 terminal 4 and rear door lock act

Page 907 of 4171

INFINITI QX56 2009 Factory Service Manual INTELLIGENT KEY WARNING BUZZERDLK-95
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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INTELLIGENT KEY WARNING BUZZER
DescriptionINFOID:0000000003775765
Answers b

Page 908 of 4171

INFINITI QX56 2009 Factory Service Manual DLK-96
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY WARNING BUZZER
Component Inspection
INFOID:0000000003775768
1.CHECK INTELLIGENT KEY WARNING BUZZER
Connect battery power su

Page 909 of 4171

INFINITI QX56 2009 Factory Service Manual OUTSIDE KEY ANTENNADLK-97
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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OUTSIDE KEY ANTENNA
DescriptionINFOID:0000000003775769
Detects whether the Intelligent

OUTSIDE KEY ANTENNADLK-97
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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OUTSIDE KEY ANTENNA
DescriptionINFOID:0000000003775769
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:0000000003775770
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-83, "
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-97, "
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-136, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003775771
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: December 20092009 QX56

Page 910 of 4171

INFINITI QX56 2009 Factory Service Manual DLK-98
< 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), r

Page 911 of 4171

INFINITI QX56 2009 Factory Service Manual STEERING LOCK UNITDLK-99
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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STEERING LOCK UNIT
Diagnosis ProcedureINFOID:0000000003775772
1.CHECK STEERING LOCK SO

Page 912 of 4171

INFINITI QX56 2009 Factory Service Manual DLK-100
< 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

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