2008 INFINITI QX56 Factory Service Manual

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Page 3937 of 4083

INFINITI QX56 2008 Factory Service Manual WCS-60
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
AWMWA0032GB
Revision: March 20102008 QX56

Page 3938 of 4083

INFINITI QX56 2008 Factory Service Manual WCS
BCM (BODY CONTROL MODULE)WCS-61
< ECU DIAGNOSIS >
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AAMIA0197GB
Revision: March 2010 2008 QX56

Page 3939 of 4083

INFINITI QX56 2008 Factory Service Manual WCS-62
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
Fail Safe
INFOID:0000000004871176
Fail-safe index
BCM performs fail-safe control when any DTC listed below is detected.
ALMIA0282GB
Revision: March 2

Page 3940 of 4083

INFINITI QX56 2008 Factory Service Manual WCS
BCM (BODY CONTROL MODULE)WCS-63
< ECU DIAGNOSIS >
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DTC Inspection Priority ChartINFOID:0000000004871177
If some DTCs are displayed at the same time, perform inspections

WCS
BCM (BODY CONTROL MODULE)WCS-63
< ECU DIAGNOSIS >
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DTC Inspection Priority ChartINFOID:0000000004871177
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC IndexINFOID:0000000004871178
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: March 2010
2008 QX56

Page 3941 of 4083

INFINITI QX56 2008 Factory Service Manual WCS-64
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
CONSULT displayFail-safeIntelligent Key
warning lamp ON Tire pressure
monitor warning lamp ON Reference page
No DTC is detected.
further testing
m

Page 3942 of 4083

INFINITI QX56 2008 Factory Service Manual WCS
THE LIGHT REMINDER WARNING DOES NOT SOUNDWCS-65
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
THE LIGHT REMINDER WA RNING DOES NOT SOUND
DescriptionINFOID:0000000001697705
L

Page 3943 of 4083

INFINITI QX56 2008 Factory Service Manual WCS-66
< SYMPTOM DIAGNOSIS >
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT SOUND
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT
SOUND
DescriptionINFOID:0000000001697707
• Seat belt wa

Page 3944 of 4083

INFINITI QX56 2008 Factory Service Manual WCS
THE KEY WARNING DOES NOT SOUNDWCS-67
< SYMPTOM DIAGNOSIS >
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THE KEY WARNING DOES NOT SOUND
DescriptionINFOID:0000000001697709
Key warning does not sound even though key

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