INFINITI QX56 2011 Factory Service Manual

SRC-68
< DTC/CIRCUIT DIAGNOSIS >
B1051, B1056 DRIVER AIR BAG MODULE
4. Check continuity between driver air bag module harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace combination switch (spiral cable). Refer to SR-14, "
Removal and Installation".
4.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to SR-26, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-67, "
DTC Logic".
Is DTC detected?
YES >> GO TO 5.
NO >> INSPECTION END
5.REPLACE DRIVER AIR BAG MODULE
1. Replace driver air bag module. Refer to SR-11, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-67, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
Driver air bag module Combination switch (spiral cable) Continuity
Connector Terminal Connector Terminal
M301 10
M32 28
Existed
11 3 0
M300 12 29
930
Driver side air bag module GroundContinuity
Connector Terminal
M301 10
Not existed
11
M300 12
9
Revision: 2010 May2011 QX56

B1052, B1057 DRIVER AIR BAG MODULE
SRC-69
< DTC/CIRCUIT DIAGNOSIS >
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B1052, B1057 DRIVER AIR BAG MODULE
DTC LogicINFOID:0000000006220002
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-14, "
On Board Diagnosis Function".
NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES >> Refer to SRC-69, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006220003
WARNING:
 Before servicing, turn ignition sw itch OFF, disconnect battery negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
 Never use unspecified tester or other measuring device.
1.CHECK HARNESS CONNECTOR
Check the harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace harness connector.
2.CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace wiring harness.
3.CHECK SPIRAL CABLE CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect driver air bag module harness connector and combination switch (spiral cable) harness con- nector.
3. Check continuity between combination switch (spiral cable) terminals.
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1052
B1057 DRIVER AIRBAG
MODULE
[SHORT] Driver air bag module circuit are shorted to each
other
(including the spiral cable)  Harness or connectors
(The module circuit is shorted.)
 Malfunction in driver air bag module
 Malfunction in spiral cable
 Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

SRC-70
< DTC/CIRCUIT DIAGNOSIS >
B1052, B1057 DRIVER AIR BAG MODULE
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace combination switch (spiral cable). Refer to SR-14, "
Removal and Installation".
4.CHECK SPIRAL CABLE CIRCUIT-II
Check continuity between combination switch (spiral cable) terminals.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace combination switch (spiral cable). Refer to SR-14, "
Removal and Installation".
5.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to SR-26, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-69, "
DTC Logic".
Is DTC detected?
YES >> GO TO 6.
NO >> INSPECTION END
6.REPLACE DRIVER AIR BAG MODULE
1. Replace driver air bag module. Refer to SR-11, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-69, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
Combination switch (spiral cable) Continuity
Connector Terminal Connector Terminal
M301 10 M301 11
Not existed
M300 9
12
Combination switch (spiral cable) Continuity
Connector Terminal Terminal
M32 28 29
Not existed
30
Revision: 2010 May2011 QX56

B1058, B1059, B1060, B1061, B1062, B1063 DIAGNOSIS SENSOR UNIT
SRC-71
< DTC/CIRCUIT DIAGNOSIS >
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B1058, B1059, B1060, B1061, B1062, B1063 DIAGNOSIS SENSOR UNIT
DTC LogicINFOID:0000000006220004
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-14, "
On Board Diagnosis Function".
NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES >> Refer to SRC-71, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006220005
WARNING:
 Before servicing, turn ignition sw itch OFF, disconnect battery negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
 Never use unspecified tester or other measuring device.
1.CHECK HARNESS CONNECTOR
Check the harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace harness connectors.
2.CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace wiring harness.
3.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to SR-26, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-71, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1058
B1059
B1060
B1061
B1062
B1063 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

SRC-72
< DTC/CIRCUIT DIAGNOSIS >
B1065, B1070 PASSENGER AIR BAG MODULE
B1065, B1070 PASSENGER AIR BAG MODULE
DTC LogicINFOID:0000000006220006
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-14, "
On Board Diagnosis Function".
NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES >> Refer to SRC-72, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006220007
WARNING:
 Before servicing, turn ignition sw itch OFF, disconnect battery negative terminal, and wait at least 3
minutes or more. (To discharge backup capacitor.)
 Never use unspecified tester or other measuring device.
1.CHECK HARNESS CONNECTOR
Check the harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace harness connector.
2.CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace wiring harness.
3.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to SR-26, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-72, "
DTC Logic".
Is DTC detected?
YES >> GO TO 4.
NO >> INSPECTION END
4.REPLACE PASSENGER AIR BAG MODULE
1. Replace passenger air bag module. Refer to SR-11, "
Removal and Installation"
2. Perform DTC confirmation procedure. Refer to SRC-72, "DTC Logic".
Is DTC detected?
YES >> GO TO 1.
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1065
B1070 ASSIST A/B MODULE
[OPEN]
Passenger air bag module circuit is open  Disconnection of wiring harness and open
 Malfunction in passenger air bag module
 Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

B1065, B1070 PASSENGER AIR BAG MODULESRC-73
< DTC/CIRCUIT DIAGNOSIS >
C
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M A
B
SRC
N
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NO >> INSPECTION END
Revision: 2010 May2011 QX56

SRC-74
< DTC/CIRCUIT DIAGNOSIS >
B1066, B1071 PASSENGER AIR BAG MODULE
B1066, B1071 PASSENGER AIR BAG MODULE
DTC LogicINFOID:0000000006220008
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-14, "
On Board Diagnosis Function".
NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES >> Refer to SRC-74, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006220009
WARNING:
 Before servicing, turn ignition sw itch OFF, disconnect battery negative terminal, and wait at least 3
minutes or more. (To discharge backup capacitor.)
 Never use unspecified tester or other measuring device.
1.CHECK HARNESS CONNECTOR
Check the harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace harness connector.
2.CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace wiring harness.
3.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to SR-26, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-74, "
DTC Logic".
Is DTC detected?
YES >> GO TO 4.
NO >> INSPECTION END
4.REPLACE PASSENGER AIR BAG MODULE
1. Replace passenger air bag module. Refer to SR-11, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-74, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
DTC Display contents of CON-
SULT-III DTC detecting condition Possible cause
B1066
B1071 ASSIST A/B MODULE
[VB-SHORT] Passenger air bag module circuit is
shorted to power supply circuit  Disconnection of wiring harness and short
 Malfunction in passenger air bag module
 Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

B1066, B1071 PASSENGER AIR BAG MODULESRC-75
< DTC/CIRCUIT DIAGNOSIS >
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NO >> INSPECTION END
Revision: 2010 May2011 QX56

SRC-76
< DTC/CIRCUIT DIAGNOSIS >
B1067, B1072 PASSENGER AIR BAG MODULE
B1067, B1072 PASSENGER AIR BAG MODULE
DTC LogicINFOID:0000000006220010
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-14, "
On Board Diagnosis Function".
NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES >> Refer to SRC-76, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006220011
WARNING:
 Before servicing, turn ignition sw itch OFF, disconnect battery negative terminal, and wait at least 3
minutes or more. (To discharge backup capacitor.)
 Never use unspecified tester or other measuring device.
1.CHECK HARNESS CONNECTOR
Check the harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace harness connector.
2.CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace wiring harness.
3.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to SR-26, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-76, "
DTC Logic".
Is DTC detected?
YES >> GO TO 4.
NO >> INSPECTION END
4.REPLACE PASSENGER AIR BAG MODULE
1. Replace passenger air bag module. Refer to SR-17, "
Removal and Installation"
2. Perform DTC confirmation procedure. Refer to SRC-76, "DTC Logic".
Is DTC detected?
YES >> GO TO 1.
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1067
B1072 ASSIST A/B MODULE
[GND-SHORT] Passenger air bag module circuit is
shorted to ground  Disconnection of wiring harness and short
 Malfunction in passenger air bag module
 Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

B1067, B1072 PASSENGER AIR BAG MODULESRC-77
< DTC/CIRCUIT DIAGNOSIS >
C
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M A
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SRC
N
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NO >> INSPECTION END
Revision: 2010 May2011 QX56