Page 3380 of 4171
SEC-70
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
ABKWA0015GB
Revision: December 20092009 QX56
Page 3381 of 4171
BCM (BODY CONTROL MODULE)SEC-71
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
SEC
N
O P
ABKIA0043GB
Revision: December 20092009 QX56
Page 3382 of 4171
SEC-72
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
ABKIA0044GB
Revision: December 20092009 QX56
Page 3383 of 4171
BCM (BODY CONTROL MODULE)SEC-73
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
SEC
N
O P
ABKIA0045GB
Revision: December 20092009 QX56
Page 3384 of 4171
SEC-74
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
ABKIA0046GB
Revision: December 20092009 QX56
Page 3385 of 4171
BCM (BODY CONTROL MODULE)SEC-75
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
SEC
N
O P
ABKIA0047GB
Revision: December 20092009 QX56
Page 3386 of 4171
SEC-76
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
Fail Safe
INFOID:0000000004221476
Fail-safe index
BCM performs fail-safe control when any DTC listed below is detected.
ABKIA0048GB
Revision: December 20092009 QX56
Page 3387 of 4171
![INFINITI QX56 2009 Factory Service Manual BCM (BODY CONTROL MODULE)SEC-77
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
SEC
N
O P
DTC Inspection Priority ChartINFOID:0000000004221477
If some DTCs are displayed at the INFINITI QX56 2009 Factory Service Manual BCM (BODY CONTROL MODULE)SEC-77
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
SEC
N
O P
DTC Inspection Priority ChartINFOID:0000000004221477
If some DTCs are displayed at the](/manual-img/42/57031/w960_57031-3386.png)
BCM (BODY CONTROL MODULE)SEC-77
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
SEC
N
O P
DTC Inspection Priority ChartINFOID:0000000004221477
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC IndexINFOID:0000000004221478
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 Fail-safe Cancellation
U1000: CAN COMM CIRCUIT I nhibit engine crankingWhen the BCM re-establishes communication with the other mod-
ules.
U1010: CONTROL UNIT (CAN) Inhibit engine cranking When the BCM re-start communicating with the other modules.
Priority DTC
1 • U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
2 • B2190: NATS ANTENNA AMP
• B2191: DIFFERENCE OF KEY
• B2192: ID DISCORD BCM-ECM
• B2193: CHAIN OF BCM-ECM
• B2013: STRG COMM 1
• B2552: INTELLIGENT KEY
• B2590: NATS MALFUNCTION
3 • C1729: VHCL SPEED SIG ERR
• C1735: IGNITION SIGNAL
4 • C1704: LOW PRESSURE FL
• C1705: LOW PRESSURE FR
• C1706: LOW PRESSURE RR
• C1707: LOW PRESSURE RL
• C1708: [NO DATA] FL
• C1709: [NO DATA] FR
• C1710: [NO DATA] RR
• C1711: [NO DATA] RL
• C1712: [CHECKSUM ERR] FL
• C1713: [CHECKSUM ERR] FR
• C1714: [CHECKSUM ERR] RR
• C1715: [CHECKSUM ERR] RL
• C1716: [PRESSDATA ERR] FL
• C1717: [PRESSDATA ERR] FR
• C1718: [PRESSDATA ERR] RR
• C1719: [PRESSDATA ERR] RL
• C1720: [CODE ERR] FL
• C1721: [CODE ERR] FR
• C1722: [CODE ERR] RR
• C1723: [CODE ERR] RL
• C1724: [BATT VOLT LOW] FL
• C1725: [BATT VOLT LOW] FR
• C1726: [BATT VOLT LOW] RR
• C1727: [BATT VOLT LOW] RL
Revision: December 20092009 QX56