2010 INFINITI QX56 Factory Service Manual

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Page 3449 of 4210

INFINITI QX56 2010 Factory Service Manual SEC-98
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
ABKIA1336GB
Revision: April 20092010 QX56

Page 3450 of 4210

INFINITI QX56 2010 Factory Service Manual INTELLIGENT KEY UNITSEC-99
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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ABKIA1641GB
Revision: April 20092010 QX56

Page 3451 of 4210

INFINITI QX56 2010 Factory Service Manual SEC-100
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
ABKIA1337GB
Revision: April 20092010 QX56

Page 3452 of 4210

INFINITI QX56 2010 Factory Service Manual INTELLIGENT KEY UNITSEC-101
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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Revision: April 20092010 QX56

Page 3453 of 4210

INFINITI QX56 2010 Factory Service Manual SEC-102
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
ABKIA1427GB
Revision: April 20092010 QX56

Page 3454 of 4210

INFINITI QX56 2010 Factory Service Manual INTELLIGENT KEY UNITSEC-103
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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ABKIA1428GB
Revision: April 20092010 QX56

Page 3455 of 4210

INFINITI QX56 2010 Factory Service Manual SEC-104
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
Fail Safe
INFOID:0000000005282716
Fail-safe operation
The Intelligent Key system operation will be interrupted if the Intel

Page 3456 of 4210

INFINITI QX56 2010 Factory Service Manual INTELLIGENT KEY UNITSEC-105
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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DTC Inspection Priority ChartINFOID:0000000005147141
If some DTCs are displayed at the sam

INTELLIGENT KEY UNITSEC-105
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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DTC Inspection Priority ChartINFOID:0000000005147141
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC IndexINFOID:0000000005147142
NOTE: Details of time display
• CRNT: Displays when there is a malfunction now or after returning to the normal condition until turning igni-
tion switch OFF → ON again.
• 1 - 39: Displayed if any previous ma lfunction is present when current conditi on is normal. It increases like 1
→ 2 → 3...38 → 39 after returning to the normal condition whenever ignition switch OFF → ON. The counter
remains at 39 even if the number of cycles exceeds it. It is counted from 1 again when turning ignition switch
OFF → ON after returning to the normal condi tion if the malfunction is detected again.
Priority DTC
1 • U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
• B2552: INTELIGENT KEY
2 • B2013: STRG COMM 1
• B2590: NATS MALFUNCTION
CONSULT display
Detection conditionFail-safe Diagnosis
No DTC is detected.
further testing
may be required. ——
—
U1000: CAN COMM CIRCUIT Intelligent Key unit cannot receive CAN communi-
cation signal continuously for 2 seconds or more.
—Check CAN communi-
cation system.
Refer to SEC-26
U1010: CONTROL UNIT (CAN)
Intelligent Key unit detects internal CAN communi-
cation circuit malfunction.
—Replace Intelligent Key
unit.
B2013: STRG COMM 1 The ID verification result between Intelligent key
unit and steering lock solenoid are NG. Or Intelligent
Key unit cannot communicate with steering lock so-
lenoid. ×
Perform steering lock
solenoid ID registration
with CONSULT-III
B2552: INTELLIGENT KEY Intelligent Key unit internal malfunction. ×Replace Intelligent Key
unit.
B2590: NATS MALFUNCTION The ID verification result between Intelligent key
unit and BCM are NG. Or Intelligent Key unit cannot
communicate with BCM. ×
Check NATS
Refer to SEC-40
Revision: April 20092010 QX56

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