2010 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2010 Factory Service Manual BCM (BODY CONTROL MODULE)DEF-29
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INFINITI QX56 2010 Factory Service Manual DEF-30
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BCM (BODY CONTROL MODULE)
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INFINITI QX56 2010 Factory Service Manual BCM (BODY CONTROL MODULE)DEF-31
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INFINITI QX56 2010 Factory Service Manual BCM (BODY CONTROL MODULE)DEF-33
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INFINITI QX56 2010 Factory Service Manual DEF-34
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BCM (BODY CONTROL MODULE)
Fail Safe
INFOID:0000000005327539
Fail-safe index
BCM performs fail-safe control when any DTC listed below is detected.
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INFINITI QX56 2010 Factory Service Manual BCM (BODY CONTROL MODULE)DEF-35
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DTC Inspection Priority ChartINFOID:0000000005327540
If some DTCs are displayed at the same time, perform inspections

BCM (BODY CONTROL MODULE)DEF-35
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DTC Inspection Priority ChartINFOID:0000000005327540
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC IndexINFOID:0000000005327541
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.
Priority
DTC
1 • U1000: CAN COMM CIRCUIT
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 • 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
CONSULT display
Fail-safeIntelligent Key
warning lamp ON Tire pressure
monitor warning lamp ON Reference page
No DTC is detected.
further testing
may be required. ————
U1000: CAN COMM CIRCUIT ———BCS-32
B2190: NATS ANTENNA AMP ———SEC-31
Revision: April 20092010 QX56

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INFINITI QX56 2010 Factory Service Manual DEF-36
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
B2191: DIFFERENCE OF KEY———SEC-34
B2192: ID DISCORD BCM-ECM ———SEC-35
B2193: CHAIN OF BCM-ECM ———SEC-37
B2552: INTELLIGENT KEY —�

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