key INFINITI QX56 2011 Factory Service Manual

SECURITY CONTROL SYSTEMSEC-43
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JCKWM4468GB
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SECURITY CONTROL SYSTEM
JCKWM4469GB
Revision: 2010 May2011 QX56

SECURITY CONTROL SYSTEMSEC-45
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JCKWM4470GB
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SECURITY CONTROL SYSTEM
JCKWM4471GB
Revision: 2010 May2011 QX56

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DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work FlowINFOID:0000000006226196
OVERALL SEQUENCE
DETAILED FLOW
JMKIA3449GB
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DIAGNOSIS AND REPAIR WORK FLOWSEC-49
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1.GET INFORMATION ABOUT SYMPTOM
Get detailed information from the customer about t he symptom (the condition and the environment when the
incident/malfunction occurs).
>> GO TO 2.
2.CHECK DTC
1. Check DTC of “ENGINE”, “BCM” and “IPDM E/R” using CONSULT-III.
2. Perform the following procedure if DTC is detected.
- Record DTC and freeze frame data (Pri nt them out using CONSULT-III.)
- Erase DTC.
- Study the relationship between the cause detected by DTC and the symptom described by the customer.
3. Check related service bulletins for information.
Are any symptoms described and any DTC detected?
Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5.
3.CONFIRM THE SYMPTOM
Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle, and che ck self diagnostic results in real time.
Verify relation between the symptom and t he condition when the symptom is detected.
>> GO TO 5.
4.CONFIRM THE SYMPTOM
Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle, and che ck self diagnostic results in real time.
Verify relation between the symptom and t he condition when the symptom is detected.
>> GO TO 6.
5.PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC Confirmation Procedure for the detected DTC, and then check that DTC is detected again.
At this time, always connect CONSULT-III to the vehi cle, and check self diagnostic results in real time.
If two or more DTCs are detected, refer to BCS-56, "
DTCInspectionPriorityChart" (BCM) or PCS-22,
"DTCIndex" (IPDM E/R), and determine trouble diagnosis order.
Is DTC detected?
YES >> GO TO 7.
NO >> Refer to GI-40, "
Intermittent Incident".
6.DETECT MALFUNCTIONING SYST EM BY SYMPTOM DIAGNOSIS
Detect malfunctioning system according to SYMPTO M DIAGNOSIS based on the confirmed symptom in step
4, and determine the trouble diagnosis order based on possible causes and symptom.
>> GO TO 7.
7.DETECT MALFUNCTIONING PA RT BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
NOTE:
The Diagnostic Procedure is described bas ed on open and short circuit inspection.
Is malfunctioning part detected?
YES >> GO TO 8.
NO >> Check voltage of related BCM terminals or IPDM E/R terminals using CONSULT-III.
8.REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
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< BASIC INSPECTION >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS AND REPAIR WORK FLOW
2. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace-
ment.
3. Check DTC. If DTC is detected, erase it.
>> GO TO 9.
9.FINAL CHECK
When DTC is detected in step 2, perform DTC CONFIRMATION PROCEDURE again, and then check that the
malfunction is repaired securely.
When symptom is described by the customer, refer to c onfirmed symptom in step 3 or 4, and check that the
symptom is not detected.
Does the symptom reappear?
YES (DTC is detected)>>GO TO 7.
YES (Symptom remains)>>GO TO 6.
NO >> INSPECTION END
Revision: 2010 May2011 QX56

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNITSEC-51
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ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ECM
ECM : DescriptionINFOID:0000000006226197
Performing the following procedure can automatically activate recommunication of ECM and BCM, but only
when the ECM is replaced with a new one*.
*: New one means a virgin ECM that has never been energized on-board.
(In this step, initialization procedur e by CONSULT-III is not necessary)
NOTE:
 When registering new Key IDs or replacing the ECM th at is not brand new, refer to CONSULT-III Oper-
ation Manual NATS-IVIS/NVIS.
 If multiple keys are attached to the key hold er, separate them before beginning work.
 Distinguish keys with unregistered key IDs from those with registered IDs.
ECM : Work ProcedureINFOID:0000000006226198
1.PERFORM ECM RECOMMUNICATING FUNCTION
1. Install ECM.
2. Contact backside of registered Intelligent key* to push-button ignition switch, then turn power supply posi-
tion to ON.
*: To perform this step, use the key that is used before performing ECM replacement.
3. Maintain power supply position in t he ON position for at least 5 seconds.
4. Turn power supply position to OFF.
5. Check that the engine starts.
>> GO TO 2.
2.PERFORM ADDITIONAL SERVICE WHEN REPLACING ECM
Perform EC-143, "
Work Procedure".
>> END
BCM
BCM : DescriptionINFOID:0000000006397657
BEFORE REPLACEMENT
When replacing BCM, save or print current vehicle specification with CONSULT-III configuration before
replacement.
NOTE:
If “READ CONFIGURATION” can not be used, use the “WRITE CONFIGURATION - Manual selection” after
replacing BCM.
AFTER REPLACEMENT
CAUTION:
 When replacing BCM, you must perform “W RITE CONFIGURATION” with CONSULT-III.
- Complete the procedure of “WRITE CONFIGURATION” in order.
- If you set incorrect “WRITE CONF IGURATION”, incidents might occur.
- Configuration is different for each vehicle model. Confirm conf iguration of each vehicle model.
 When replacing BCM, perform the system initialization (NATS).
BCM : Work ProcedureINFOID:0000000006397658
1.SAVING VEHICLE SPECIFICATION
CONSULT-III Configuration
Perform “READ CONFIGURATION” to save or prin t current vehicle specification. Refer to BCS-67, "
CONFIG-
URATION (BCM) : Description".
NOTE:
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ADDITIONAL SERVICE WHEN
REPLACING CONTROL UNIT
If “READ CONFIGURATION” can not be used, use the “WRITE CONFIGURATION - Manual selection” after
replacing BCM.
>> GO TO 2.
2.REPLACE BCM
Replace BCM. Refer to BCS-81, "
Removal and Installation".
>> GO TO 3.
3.WRITING VEHICLE SPECIFICATION
CONSULT-III Configuration
Perform “WRITE CONFIGURATION - Config file” or “W RITE CONFIGURATION - Manual selection” to write
vehicle specification. Refer to BCS-69, "
CONFIGURATION (BCM) : Configuration list".
>> GO TO 4.
4.INITIALIZE BCM (NATS)
Perform BCM initialization. (NATS)
>> WORK END
Revision: 2010 May2011 QX56