ecm INFINITI QX56 2010 Factory Service Manual

BCM (BODY CONTROL MODULE)ADP-167
< ECU DIAGNOSIS >
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DTC Inspection Priority ChartINFOID:0000000005370317
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC IndexINFOID:0000000005370318
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

ADP-168
< 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 ———SEC-39
B2590: NATS MALFUNCTION ———SEC-40
C1708: [NO DATA] FL ———WT-14
C1709: [NO DATA] FR ———WT-14
C1710: [NO DATA] RR ———WT-14
C1711: [NO DATA] RL ———WT-14
C1712: [CHECKSUM ERR] FL ———WT-16
C1713: [CHECKSUM ERR] FR ———WT-16
C1714: [CHECKSUM ERR] RR ———WT-16
C1715: [CHECKSUM ERR] RL ———WT-16
C1716: [PRESSDATA ERR] FL ———WT-18
C1717: [PRESSDATA ERR] FR ———WT-18
C1718: [PRESSDATA ERR] RR ———WT-18
C1719: [PRESSDATA ERR] RL ———WT-18
C1720: [CODE ERR] FL ———WT-16
C1721: [CODE ERR] FR ———WT-16
C1722: [CODE ERR] RR ———WT-16
C1723: [CODE ERR] RL ———WT-16
C1724: [BATT VOLT LOW] FL ———WT-16
C1725: [BATT VOLT LOW] FR ———WT-16
C1726: [BATT VOLT LOW] RR ———WT-16
C1727: [BATT VOLT LOW] RL ———WT-16
C1729: VHCL SPEED SIG ERR ———WT-19
C1735: IGNITION SIGNAL ———WT-20
CONSULT display Fail-safeIntelligent Key
warning lamp ON Tire pressure
monitor warning
lamp ON Reference page
Revision: April 20092010 QX56

AV
U1200 AV CONTROL UNITAV-43
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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U1200 AV CONTROL UNIT
DescriptionINFOID:0000000005146251
Replace the AV control unit if this DTC is displayed. Refer to AV-169, "Removal and Installation".
DTC LogicINFOID:0000000005146252
Part name Description
AV CONTROL UNIT • It is the master unit of the MULTI AV system and it is connected to each control
unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and combination meter via CAN communication to ob- tain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis- play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).
DTC Display contents of CONSULT-III DTC Detection Condition Action to take
U1200 Control Unit
FLASH- ROM
[U1200] An internal malfunction is detected in AV control unit
(FLASH-ROM). Replace AV control unit. Re-
fer to AV- 1 6 9 , "
Removal and
Installation".
Revision: April 20092010 QX56

AV-44
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
U1201 AV CONTROL UNIT
U1201 AV CONTROL UNIT
DescriptionINFOID:0000000005146253
Replace the AV control unit if this DTC is displayed. Refer to
AV-169, "Removal and Installation".
DTC LogicINFOID:0000000005146254
DTC DETECTION LOGIC
Part name Description
AV CONTROL UNIT • Integrates HDD (hard disk dr
ive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi- gation, and vehicle information functions.
• It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis- play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC CONSULT-III display Detection conditionAction to take
U1201 GYRO NO CONN
[U1201] An internal malfunction is detected in AV control unit (gy-
rocompass disconnection). Replace AV control unit. Refer
to
AV- 1 6 9 , "
Removal and Instal-
lation".
Revision: April 20092010 QX56

AV
U1204 GPS COMMAV-45
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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U1204 GPS COMM
DescriptionINFOID:0000000005146255
Replace the AV control unit if this DTC is displayed. Refer to AV-169, "Removal and Installation".
DTC LogicINFOID:0000000005146256
DTC DETECTION LOGIC
Part name Description
AV CONTROL UNIT • Integrates HDD (hard disk
drive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi- gation, and vehicle information functions.
• It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis- play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC CONSULT-III display Detection conditionAction to take
U1204 GPS COMM
[U1204] An internal malfunction is detected in AV control unit (GPS
malfunction). Replace AV control unit. Refer
to
AV-169, "
Removal and Instal-
lation".
Revision: April 20092010 QX56

AV-46
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
U1205 GPS ROM
U1205 GPS ROM
DescriptionINFOID:0000000005146257
Replace the AV control unit if this DTC is displayed. Refer to
AV-169, "Removal and Installation".
DTC LogicINFOID:0000000005146258
DTC DETECTION LOGIC
Part name Description
AV CONTROL UNIT • Integrates HDD (hard disk dr
ive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi- gation, and vehicle information functions.
• It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis- play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC CONSULT-III display Detection conditionAction to take
U1205 GPS ROM
[U1205] An internal malfunction is detected in AV control unit (GPS
malfunction). Replace AV control unit. Refer
to
AV- 1 6 9 , "
Removal and Instal-
lation".
Revision: April 20092010 QX56

AV
U1206 GPS RAMAV-47
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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U1206 GPS RAM
DescriptionINFOID:0000000005146259
Replace the AV control unit if this DTC is displayed. Refer to AV-169, "Removal and Installation".
DTC LogicINFOID:0000000005146260
DTC DETECTION LOGIC
Part name Description
AV CONTROL UNIT • Integrates HDD (hard disk
drive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi- gation, and vehicle information functions.
• It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis- play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC CONSULT-III display Detection conditionAction to take
U1206 GPS RAM
[U1206] An internal malfunction is detected in AV control unit (GPS
malfunction). Replace AV control unit. Refer
to
AV-169, "
Removal and Instal-
lation".
Revision: April 20092010 QX56

AV-48
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
U1207 GPS RTC
U1207 GPS RTC
DescriptionINFOID:0000000005146261
Replace the AV control unit if this DTC is displayed. Refer to
AV-169, "Removal and Installation".
DTC LogicINFOID:0000000005146262
DTC DETECTION LOGIC
Part name Description
AV CONTROL UNIT • Integrates HDD (hard disk dr
ive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi- gation, and vehicle information functions.
• It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis- play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC CONSULT-III display Detection conditionAction to take
U1207 GPS RTC
[U1207] An internal malfunction is detected in AV control unit (GPS
malfunction). Replace AV control unit. Refer
to
AV- 1 6 9 , "
Removal and Instal-
lation".
Revision: April 20092010 QX56

AV
U1216 AV CONTROL UNITAV-49
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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U1216 AV CONTROL UNIT
DescriptionINFOID:0000000005146263
Replace the AV control unit if this DTC is displayed. Refer to AV-169, "Removal and Installation".
DTC LogicINFOID:0000000005146264
Part name Description
AV CONTROL UNIT • Integrates HDD (hard disk
drive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi- gation, and vehicle information functions.
• It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis- play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC Display contents of CONSULT-III DTC Detection Condition Action to take
U1216 CAN CONT
[U1216] Internal malfunction of AV co
ntrol unit (CAN controller) is
detected. Replace AV control unit.
Refer to AV- 1 6 9 , "
Remov-
al and Installation".
Revision: April 20092010 QX56

AV-50
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
U1217 AV CONTROL UNIT
U1217 AV CONTROL UNIT
DescriptionINFOID:0000000005146265
Replace the AV control unit if this DTC is displayed. Refer to
AV-169, "Removal and Installation".
DTC LogicINFOID:0000000005146266
DTC DETECTION LOGIC
Part name Description
AV CONTROL UNIT • Integrates HDD (hard disk dr
ive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi- gation, and vehicle information functions.
• It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis- play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC CONSULT-III display Detection conditionAction to take
U1217 BLUETOOTH CONN
[U1217] An internal malfunction is detected in AV control unit (Blue-
tooth module connection malfunction). Replace AV control unit. Refer
to
AV- 1 6 9 , "
Removal and Instal-
lation".
Revision: April 20092010 QX56