2009 INFINITI QX56 Factory Service Manual

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Page 3337 of 4171

INFINITI QX56 2009 Factory Service Manual B2190, P1614 NATS ANTENNA AMP.SEC-27
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B2190, P1614 NATS ANTENNA AMP.
DescriptionINFOID:0000000003775894
Performs

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INFINITI QX56 2009 Factory Service Manual SEC-28
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2190, P1614 NATS ANTENNA AMP.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace fuse or harness.
4.CHECK NATS ANTENNA

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INFINITI QX56 2009 Factory Service Manual B2190, P1614 NATS ANTENNA AMP.SEC-29
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6.CHECK NATS ANTENNA AMP. SIGNAL LINE- 2
Check voltage between NATS antenna

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INFINITI QX56 2009 Factory Service Manual SEC-30
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2191, P1615 DIFFERENCE OF KEY
B2191, P1615 DIFFERENCE OF KEY
DescriptionINFOID:0000000003775897
Performs ID verification through BCM when i

Page 3341 of 4171

INFINITI QX56 2009 Factory Service Manual B2192, P1611 ID DISCORD, IMMU-ECMSEC-31
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B2192, P1611 ID DISCORD, IMMU-ECM
DescriptionINFOID:0000000003775900
BCM

B2192, P1611 ID DISCORD, IMMU-ECMSEC-31
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B2192, P1611 ID DISCORD, IMMU-ECM
DescriptionINFOID:0000000003775900
BCM performs the ID verification with ECM that allows the engine to start. BCM starts the communication with
ECM if ignition switch is turned ON and starts the engi ne if the ID is OK. ECM prevents the engine from start-
ing if the ID is not registered.
DTC LogicINFOID:0000000003775901
DTC DETECTION LOGIC
NOTE:
• If DTC B2192 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-22, "
DTC Logic".
• If DTC B2192 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-23, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Refer to SEC-31, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000003775902
1.PERFORM INITIALIZATION
Perform initialization with CONSULT-III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to “CONSULT-III Operation Manual”.
Can the system be initialized and can the engine be started with re-registered mechanical key?
YES >> ID was unregistered.
NO >> GO TO 2
2.PEPLACE BCM
1. Replace BCM. Refer to BCS-56, "
Removal and Installation".
2. Perform initialization with CONSULT- III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to “CONSULT-III Operation Manual”.
Can the system be initialized and can the engine be started with re-registered mechanical key?
YES >> BCM is malfunctioning.
NO >> GO TO 3
3.PEPLACE ECM
1. Replace ECM. Refer to Removal and Installation.
2. Perform initialization with CONSULT- III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to “CONSULT-III Operation Manual”.
Can the system be initialized and can the engine be started with re-registered mechanical key?
YES >> ECM is malfunctioning.
NO >> GO TO 4
4.CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
DTC No. Trouble diagnosis
name DTC detecting condition
Possible cause
B2192 ID DISCORD BCM-
ECM The ID verification results between BCM and ECM
are NG. The registration is necessary. •BCM
•ECM
P1611
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual SEC-32
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2192, P1611 ID DI
SCORD, IMMU-ECM
>> Inspection End.
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual B2193, P1612 CHAIN OF ECM-IMMUSEC-33
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B2193, P1612 CHAIN OF ECM-IMMU
DescriptionINFOID:0000000003775903
BCM perfo

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INFINITI QX56 2009 Factory Service Manual SEC-34
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2194 ID DISCORD IMMU-I-KEY
B2194 ID DISCORD IMMU-I-KEY
DescriptionINFOID:0000000003775906
BCM performs the ID verification with Intelligent

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