2009 INFINITI QX56 ECU

SEC-88
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
ABKIA0051GB
Revision: December 20092009 QX56

INTELLIGENT KEY UNITSEC-89
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
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F
G H
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M A
B
SEC
N
O P
AAKIA0433GB
Revision: December 20092009 QX56

SEC-90
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
ABKIA0053GB
Revision: December 20092009 QX56

INTELLIGENT KEY UNITSEC-91
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
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SEC
N
O P
ABKIA0054GB
Revision: December 20092009 QX56

SEC-92
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
ABKIA0055GB
Revision: December 20092009 QX56

INTELLIGENT KEY UNITSEC-93
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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B
SEC
N
O P
AAKIA0109GB
Revision: December 20092009 QX56

SEC-94
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
AAKIA0110GB
Revision: December 20092009 QX56

INTELLIGENT KEY UNITSEC-95
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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N
O P
Fail SafeINFOID:0000000003775938
DTC Inspection Priority ChartINFOID:0000000003775939
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC IndexINFOID:0000000003775940
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.
Display contents of CONSULT-III Fail-safeCancellation
B2013: STRG COMM 1 • Inhibits steering look unlocking Erase DTC
B2552: INTELLIGENT KEY • Inhibits steering look unlocking
• Inhibits engine cranking
(BCM)
•Fuel cut (ECM) Erase DTC
B2590: NATS MALFUNCTION • Inhibits steering look unlocking
• Inhibits engine cranking
(BCM)
•Fuel cut (ECM) Erase DTC
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-22
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-36
Revision: December 20092009 QX56