airbag off INFINITI QX56 2011 Factory Service Manual

SRC-22
< ECU DIAGNOSIS INFORMATION >
DIAGNOSIS SENSOR UNIT
ECU DIAGNOSIS INFORMATION
DIAGNOSIS SENSOR UNIT
DTC IndexINFOID:0000000006219956
DTC Diagnostic item Explanation Reference page— NO DTC IS DETECTED. When malfunction is
indicated by the “AIR
BAG” warning lamp in
the user modeLow battery voltage (Less than 9 V) or
High battery voltage (more than 16 V)
SRC-19, "
CON-
SULT-III Func-
tion".
Malfunction occurs in Occpant detac-
tion System SRC-19, "
CON-
SULT-III Func-
tion".
Self-diagnostic result is not erased af-
ter repair SRC-14, "
On
Board Diagnosis
Function",
SRC-
19, "CONSULT-
III Function".
Intermittent malfunction is detected in
the past GI-40, "
Intermit-
tent Incident"
No malfunction is detected —
B1001-B1015 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning 
SRC-41,
"DTC Logic".
 SRC-42,
"DTC Logic".
 SRC-43,
"DTC Logic".
B1017
B1020
B1021 OCCUPANT SENS C/U
[UNIT FAIL]
Malfunction occurs in Occupant Detection System control unit SRC-44, "
DTC
Logic"
B1018OCCUPANT SENS
[UNIT FAIL]
Malfunction occurs in Occupant Detection System sensor SRC-46, "DTC
Logic"
B1022OCCUPANT SENS C/U
[COMM FAIL] Malfunction occurs in Occupant Detection System control unit,
circuit of Occupant Detection System control unit, or air bag di-
agnosis sensor unit SRC-48, "DTC
Logic"
B1023 PASS A/B INDCTR CKT
Front passenger air bag OFF indicator circuit is open or short-
ed to ground or the circuits are shorted each other SRC-50, "DTC
Logic"
B1025
B1032
B1048
OCS SENSOR Malfunction occurs in Occupant Detection System control unit,
circuit of Occupant Detection System control unit, or air bag di-
agnosis sensor unit SRC-52, "DTC
Logic"
B1026-B1031 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning
SRC-54, "DTC
Logic".
B1033
B1034 CRASH ZONE SEN
[UNIT FAIL]
Crash zone sensor is malfunctioning
SRC-55, "
DTC
Logic".
B1035 CRASH ZONE SEN
[COMM FAIL] Crash zone sensor is malfunctioning SRC-57, "
DTC
Logic".
B1036 CRASH ZONE SEN
[UNMATCH]
Crash zone sensor is out of the specified specification SRC-59, "
DTC
Logic".
B1037
B1039
B1041 CRASH ZONE SEN1 Crash zone
sensor is malfunctioning SRC-60, "
DTC
Logic".
B1042-B1047 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning SRC-62, "
DTC
Logic".
B1049
B1054 DRIVER AIRBAG MODULE
[OPEN]
Driver air bag module circuit is open (including the spiral cable)
SRC-63, "
DTC
Logic".
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

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

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

B1052, B1057 DRIVER AIR BAG MODULE
SRC-69
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G
I
J
K L
M A
B
SRC
N
O P
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

B1080, B1096 DRIVER AIR BAG MODULE
SRC-81
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G
I
J
K L
M A
B
SRC
N
O P
B1080, B1096 DRIVER AIR BAG MODULE
DTC LogicINFOID:0000000006220016
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-81, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006220017
WARNING:
 Before servicing, turn ignition s witch OFF, disconnect battery negati ve 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.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
B1080
B1096 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