INFINITI QX56 2011 Factory Service Manual

SRC-58
< DTC/CIRCUIT DIAGNOSIS >
B1035 CRASH ZONE SENSOR
NO >> INSPECTION END
Revision: 2010 May2011 QX56

B1036 CRASH ZONE SENSORSRC-59
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G
I
J
K L
M A
B
SRC
N
O P
B1036 CRASH ZONE SENSOR
DTC LogicINFOID:0000000006219990
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-59, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006219991
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.REPLACE CRASH ZONE SENSOR
1. Replace crash zone sensor. Refer to SR-22, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-59, "
DTC Logic".
Is DTC detected?
YES >> GO TO 2.
NO >> INSPECTION END
2.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-59, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1036 CRASH ZONE SEN
[UNMATCH] Crash zone sensor is out of the specified speci-
fication Diagnosis sensor unit or crash zone sensor is
different from the part specified
Revision: 2010 May2011 QX56

SRC-60
< DTC/CIRCUIT DIAGNOSIS >
B1037, B1039, B1041 CRASH ZONE SENSOR
B1037, B1039, B1041 CRASH ZONE SENSOR
DTC LogicINFOID:0000000006219992
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-60, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006219993
WARNING:
 Before servicing, turn ignition switch OFF, disco nnect 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 CRASH ZONE SENSOR
1. Replace crash zone sensor. Refer to SR-22, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-60, "
DTC Logic".
Is DTC detected?
YES >> GO TO 4.
NO >> INSPECTION END
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-60, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1037
B1039
B1041 CRASH ZONE SENS1 Crash zone sensor is malfunctioning  Disconnection of wiring harness
 Malfunction in crash zone sensor
 Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

B1037, B1039, B1041 CRASH ZONE SENSOR
SRC-61
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G
I
J
K L
M A
B
SRC
N
O P
NO >> INSPECTION END
Revision: 2010 May2011 QX56

SRC-62
< DTC/CIRCUIT DIAGNOSIS >
B1042, B1043, B1044, B1045, B1046, B1047 DIAGNOSIS SENSOR UNIT
B1042, B1043, B1044, B1045, B1046, B1047 DIAGNOSIS SENSOR UNIT
DTC LogicINFOID:0000000006219994
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-62, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006219995
WARNING:
 Before servicing, turn ignition switch OFF, disco nnect 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-62, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1042
B1043
B1044
B1045
B1046
B1047 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

B1049, B1054 DRIVER AIR BAG MODULE
SRC-63
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G
I
J
K L
M A
B
SRC
N
O P
B1049, B1054 DRIVER AIR BAG MODULE
DTC LogicINFOID:0000000006219996
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-63, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006219997
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
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 driver air bag module har ness connector and combination switch (spiral cable)
harness connector.
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1049
B1054 DRIVER AIRBAG
MODULE
[OPEN] Driver air bag module circuit is open
(including the spiral cable)  Harness or connectors
(The module circuit is open.)
 Malfunction in driver air bag module
 Malfunction in spiral cable
 Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

SRC-64
< DTC/CIRCUIT DIAGNOSIS >
B1049, B1054 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-63, "
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-63, "
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

B1050, B1055 DRIVER AIR BAG MODULE
SRC-65
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G
I
J
K L
M A
B
SRC
N
O P
B1050, B1055 DRIVER AIR BAG MODULE
DTC LogicINFOID:0000000006219998
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-65, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006219999
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.REPLACE SPIRAL CABLE
1. Replace combination switch (spiral cable). Refer to SR-14, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-65, "
DTC Logic".
Is DTC detected?
YES >> GO TO 4.
NO >> INSPECTION END
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-65, "
DTC Logic".
DTCDisplay contents of
CONSULT-III DTC detecting condition Possible cause
B1050
B1055 DRIVER AIRBAG
MODULE
[VB-SHORT] Driver air bag module circuit is shorted to
power supply circuit
(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-66
< DTC/CIRCUIT DIAGNOSIS >
B1050, B1055 DRIVER AIR BAG MODULE
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-65, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
Revision: 2010 May2011 QX56

B1051, B1056 DRIVER AIR BAG MODULE
SRC-67
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G
I
J
K L
M A
B
SRC
N
O P
B1051, B1056 DRIVER AIR BAG MODULE
DTC LogicINFOID:0000000006220000
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-67, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006220001
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
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 driver air bag module har ness connector and combination switch (spiral cable)
harness connector.
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1051
B1056 DRIVER AIRBAG
MODULE
[GND-SHORT] Driver air bag module circuit is shorted to ground
(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