Infiniti QX56 (Z62). Manual — part 1165
SEC-50
< 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 confirmed 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
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
SEC-51
< BASIC INSPECTION >
[WITH INTELLIGENT KEY SYSTEM]
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ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ECM
ECM : Description
INFOID: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 procedure by CONSULT-III is not necessary)
NOTE:
• When registering new Key IDs or replacing the ECM that is not brand new, refer to CONSULT-III Oper-
ation Manual NATS-IVIS/NVIS.
• If multiple keys are attached to the key holder, separate them before beginning work.
• Distinguish keys with unregistered key IDs from those with registered IDs.
ECM : Work Procedure
INFOID: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 the 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
>> END
BCM
BCM : Description
INFOID: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 “WRITE CONFIGURATION” with CONSULT-III.
- Complete the procedure of “WRITE CONFIGURATION” in order.
- If you set incorrect “WRITE CONFIGURATION”, incidents might occur.
- Configuration is different for each vehicle model. Confirm configuration of each vehicle model.
• When replacing BCM, perform the system initialization (NATS).
BCM : Work Procedure
INFOID:0000000006397658
1.
SAVING VEHICLE SPECIFICATION
CONSULT-III Configuration
Perform “READ CONFIGURATION” to save or print current vehicle specification. Refer to
NOTE:
SEC-52
< BASIC INSPECTION >
[WITH INTELLIGENT KEY SYSTEM]
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 “WRITE 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
P1610 LOCK MODE
SEC-53
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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DTC/CIRCUIT DIAGNOSIS
P1610 LOCK MODE
Description
INFOID:0000000006226201
ECM forcibly switches to the mode that inhibits engine start, when engine start operation is performed 5 times
or more while communication between ECM and BCM is not normal.
DTC Logic
INFOID:0000000006226202
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check DTC in “Self Diagnostic Result” mode of “ENGINE” using CONSULT-III.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006226203
1.
CHECK ENGINE START FUNCTION
1.
Check that DTC except for DTC P1610 is not detected.
If detected, erase the DTC after fixing.
2.
Turn ignition switch OFF.
3.
Contact the registered Intelligent Key backside to push-button ignition switch and wait 5 seconds.
4.
Turn ignition switch ON.
5.
Turn ignition switch OFF and wait 5 seconds.
6.
Repeat steps 3 and 5 twice (a total of 3 times).
7.
Check that engine can start.
>> INSPECTION END
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1610
LOCK MODE
When ECM detects a communication malfunction between
ECM and BCM 5 times or more.
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