2011 INFINITI QX56 ground

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

DIAGNOSIS SENSOR UNITSRC-23
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G
I
J
K L
M A
B
SRC
N
O P
B1050
B1055 DRIVER AIRBAG MODULE
[VB-SHORT] Driver air bag module circuit is shorted to power supply circuit
(including the spiral cable) SRC-65, "DTC
Logic".
B1051
B1056 DRIVER AIRBAG MODULE
[GND-SHORT] Driver air bag module circuit is shorted to ground (including the
spiral cable) SRC-67, "
DTC
Logic".
B1052
B1057 DRIVER AIRBAG MODULE
[SHORT] Driver air bag module circuits are shorted to each other (includ-
ing spiral cable) SRC-69, "
DTC
Logic".
B1058-B1063 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning SRC-71, "
DTC
Logic".
B1065
B1070 ASSIST A/B MODULE
[OPEN]
Passenger air bag module circuit is open SRC-72, "
DTC
Logic".
B1066
B1071 ASSIST A/B MODULE
[VB-SHORT] Passenger air bag module circuit is shorted to power supply
circuit SRC-74, "
DTC
Logic".
B1067
B1072 ASSIST A/B MODULE
[GND-SHORT]
Passenger air bag module circuit is shorted to ground SRC-76, "
DTC
Logic".
B1068
B1073 ASSIST A/B MODULE
[SHORT]
Passenger air bag module circuits are shorted to each other SRC-78, "
DTC
Logic".
B1074-B1079 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning SRC-80, "
DTC
Logic".
B1080
B1096 DRIVER AIRBAG MODULE
[SHORT] Driver air bag module circuits are shorted to each other (includ-
ing spiral cable) SRC-81, "
DTC
Logic".
B1081 PRE-TEN FRONT RH
[OPEN]
Seat belt pre-tensioner RH circuit is open SRC-83, "
DTC
Logic".
B1082 PRE-TEN FRONT RH
[VB-SHORT] Seat belt pre-tensioner RH circuit is shorted to power supply
circuit SRC-85, "
DTC
Logic".
B1083 PRE-TEN FRONT RH
[GND-SHORT] Seat belt pre-tensioner RH circuit is shorted to ground SRC-87, "
DTC
Logic".
B1084 PRE-TEN FRONT RH
[SHORT]
Seat belt pre-tensioner RH circuits are shorted to each other SRC-89, "
DTC
Logic".
B1086 PRE-TEN FRONT LH
[OPEN] Seat belt pre-tensioner LH circuit is open
SRC-91, "
DTC
Logic".
B1087 PRE-TEN FRONT LH
[VB-SHORT] Seat belt pre-tensioner LH circuit is shorted to power supply
circuit SRC-93, "
DTC
Logic".
B1088 PRE-TEN FRONT LH
[GND-SHORT]
Seat belt pre-tensioner LH circuit is shorted to ground SRC-95, "
DTC
Logic".
B1089 PRE-TEN FRONT LH
[SHORT]
Seat belt pre-tensioner LH circuits are shorted to each other SRC-97, "
DTC
Logic".
B1090-B1095 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning SRC-99, "
DTC
Logic".
B 11 0 6 - B 1111 C O N T R O L U N I T A i r b a g d i a g n o s i s s e n s o r u n i t i s m a l f u n c t i o n i n g SRC-100, "
DTC
Logic".
B 111 3
B 111 4 SATELLITE SENS RH
[UNIT FAIL]
Front satellite sensor RH is malfunctioning SRC-101, "
DTC
Logic".
B 111 5 SATELLITE SENS RH
[COMM FAIL] Front satellite sensor RH is malfunctioning
SRC-103, "
DTC
Logic".
B 111 6 SATELLITE SENS RH
[UNMATCH] Front satellite sensor RH is out of the specified specification SRC-105, "
DTC
Logic".
B 111 8
B 111 9 SATELLITE SENS LH
[UNIT FAIL]
Front satellite sensor LH is malfunctioning SRC-106, "
DTC
Logic".
B1120 SATELLITE SENS LH
[COMM FAIL] Front satellite sensor LH is malfunctioning
SRC-108, "
DTC
Logic".
B1121 SATELLITE SENS LH
[UNMATCH] Front satellite sensor LH is out of the specified specification SRC-110, "
DTC
Logic".
DTC Diagnostic item Explanation Reference page
Revision: 2010 May2011 QX56

SRC-24
< ECU DIAGNOSIS INFORMATION >
DIAGNOSIS SENSOR UNIT
B1122-B1127 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioningSRC-111, "DTC
Logic".
B1129 SIDE MODULE RH
[OPEN]
Side air bag module RH circuit is open SRC-112, "
DTC
Logic".
B1130 SIDE MODULE RH
[VB-SHORT] Side air bag module RH circuit is shorted to power supply cir-
cuit SRC-114, "
DTC
Logic".
B1131 SIDE MODULE RH
[GND-SHORT] Side air bag module RH circuit is shorted to ground SRC-116, "
DTC
Logic".
B1132 SIDE MODULE RH
[SHORT]
Side air bag module RH circuits are shorted to each other SRC-118, "
DTC
Logic".
B1134 SIDE MODULE LH
[OPEN] Side air bag module LH circuit is open
SRC-120, "
DTC
Logic".
B1135 SIDE MODULE LH
[VB-SHORT] Side air bag module LH circuit is shorted to power supply circuit SRC-122, "
DTC
Logic".
B1136 SIDE MODULE LH
[GND-SHORT]
Side air bag module LH circuit is shorted to ground SRC-124, "
DTC
Logic".
B1137 SIDE MODULE LH
[SHORT] Side air bag module LH circuits are shorted to each other
SRC-126, "
DTC
Logic".
B1138-B1143 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning SRC-128, "
DTC
Logic"
B1144CONTROL UNIT
[MISS INSTALLATION] Air bag diagnosis sensor unit is malfunctioning or out of the
specified specification SRC-129, "DTC
Logic".
B1145 CURTAIN MODULE RH
[OPEN] Rear curtain air bag module RH circuit is open
SRC-130, "
DTC
Logic".
B1146 CURTAIN MODULE RH
[VB-SHORT] Rear curtain air bag module RH circuit is shorted to power sup-
ply circuit SRC-132, "
DTC
Logic".
B1147 CURTAIN MODULE RH
[GND-SHORT]
Rear curtain air bag module RH circuit is shorted to ground SRC-134, "
DTC
Logic".
B1148 CURTAIN MODULE RH
[SHORT] Rear curtain air bag module RH circuits are shorted to each
other SRC-136, "
DTC
Logic".
B1150 CURTAIN MODULE LH
[OPEN] Rear curtain air bag module LH circuit is open SRC-138, "
DTC
Logic".
B1151 CURTAIN MODULE LH
[VB-SHORT] Rear curtain air bag module LH circuit is shorted to power sup-
ply circuits SRC-140, "
DTC
Logic".
B1152 CURTAIN MODULE LH
[GND-SHORT]
Rear curtain air bag module LH circuit is shorted to ground SRC-142, "
DTC
Logic".
B1153 CURTAIN MODULE LH
[SHORT] Rear curtain air bag module LH circuits are shorted to each
other SRC-144, "
DTC
Logic".
B1154-B1159 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning SRC-146, "
DTC
Logic".
B1170-B1175 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning SRC-147, "
DTC
Logic".
B1177 PRE-TEN2 FRONT RH
[OPEN] Lap pre-tensioner RH circuit is open
SRC-148, "
DTC
Logic"
B1178PRE-TEN2 FRONT RH
[VB-SHORT] Lap pre-tensioner RH circuit is shorted to power supply circuit SRC-149, "DTC
Logic"
B1179PRE-TEN2 FRONT RH
[GND-SHORT]
Lap pre-tensioner RH circuit is shorted to ground SRC-150, "DTC
Logic"
B1180
PRE-TEN2 FRONT RH
[SHORT] Lap pre-tensioner RH circuits are shorted to each other
SRC-151, "DTC
Logic"
B1182PRE-TEN2 FRONT LH
[OPEN] Lap pre-tensioner LH circuit is open SRC-152, "DTC
Logic"
DTC Diagnostic item Explanation Reference page
Revision: 2010 May2011 QX56

DIAGNOSIS SENSOR UNITSRC-25
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G
I
J
K L
M A
B
SRC
N
O P
B1183 PRE-TEN2 FRONT LH
[VB-SHORT] Lap pre-tensioner LH circuit is shorted to power supply circuit SRC-153, "DTC
Logic"
B1184PRE-TEN2 FRONT LH
[GND-SHORT]
Lap pre-tensioner LH circuit is shorted to ground SRC-154, "DTC
Logic"
B1185
PRE-TEN2 FRONT LH
[SHORT] Lap pre-tensioner LH circuits are shorted to each other
SRC-155, "DTC
Logic"
B1186-B1191 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning SRC-156, "DTC
Logic".
B1193 CURTAIN MODULE RH
[OPEN]
Front curtain air bag module RH circuit is open SRC-157, "
DTC
Logic"
B1194
CURTAIN MODULE RH
[VB-SHORT] Front curtain air bag module RH circuit is shorted to power sup-
ply circuit SRC-159, "DTC
Logic"
B1195
CURTAIN MODULE RH
[GND-SHORT] Front curtain air bag module RH circuit is shorted to ground SRC-161, "DTC
Logic"
B1196CURTAIN MODULE RH
[SHORT] Front curtain air bag module RH circuits are shorted to each
other SRC-163, "DTC
Logic"
B1198
CURTAIN MODULE LH
[OPEN] Front curtain air bag module LH circuit is open
SRC-165, "DTC
Logic"
B1199CURTAIN MODULE LH
[VB-SHORT] Front curtain air bag module LH circuit is shorted to power sup-
ply circuits SRC-167, "DTC
Logic"
B1200
CURTAIN MODULE LH
[GND-SHORT]
Front curtain air bag module LH circuit is shorted to ground SRC-169, "DTC
Logic"
B1201
CURTAIN MODULE LH
[SHORT] Front curtain air bag module LH circuits are shorted to each
other SRC-171, "DTC
Logic"
B1202-B1207 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning
SRC-173, "DTC
Logic".
B1209 FRONTAL COLLISION DETEC-
TION Seat belt pre-tensioner, driver air bag and passenger air bag
are deployed SRC-174, "
De-
scription".
B1210 SIDE COLLISION DETECTION Side air bag, curtain air bag and seat belt pre-tensione are de-
ployed SRC-175, "
DTC
Logic".
B1211 ROLLOVER DETECTION Curtain air bag and seat belt pre-tensione are deployed SRC-176, "
DTC
Logic"
B1212-B1214 RH1 SAT-SENS Satellite sensor RH is malfunctioning SRC-177, "DTC
Logic".
B1215-B1217 LH1 SAT-SENS Satellite sensor LH is malfunctioning SRC-179, "
DTC
Logic".
B1218-B1223 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning SRC-181, "
DTC
Logic".
B1234-B1239 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning SRC-182, "
DTC
Logic"
B1304SATELLITE SENS RH
[UNIT FAIL]
Rear satellite sensor RH is malfunctioning SRC-183, "DTC
Logic"
B1306
B1308
B1309
B1310SATELLITE SENS RH
[COMM FAIL]
Rear satellite sensor RH is malfunctioning SRC-185, "
DTC
Logic"
B1307SATELLITE SENS RH
[UNMATCH] Rear satellite sensor RH is out of the specified specification
SRC-187, "DTC
Logic"
B1311SATELLITE SENS LH
[UNIT FAIL] Rear satellite sensor LH is malfunctioning SRC-188, "DTC
Logic"
DTC Diagnostic item Explanation Reference page
Revision: 2010 May2011 QX56

SRC-50
< DTC/CIRCUIT DIAGNOSIS >
B1023 PASS A/B INDCTR CKT
B1023 PASS A/B INDCTR CKT
DescriptionINFOID:0000000006219978
Suppresses the deployment of front passenger air bag when the condition of passenger seat is empty or occu-
pied with a child and child-seat. Also illuminates front passenger air bag OFF indicator lamp when the condi-
tion of passenger seat is occupied with a child-seat and ch ild. In case of malfunction the blinking of the air bag
warning lamp reports the malfunction to driver, and by the on board self-diagnosis system or CONSULT-III can
detect the cause.
OPERATION
Illuminates front passenger air bag OFF indicator when t he passenger seat is empty or occupied by a child or
a child-seat.
STRUCTURE
Front passenger air bag OFF indicator with LED illumination.
INSTALLATION
Front passenger air bag OFF indicator is inst alled at the instrument panel center.
DTC LogicINFOID:0000000006219979
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “AIR BAG” Self Diagnostic Result 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 diagnosis mode if no malfunction is detected in user mode.
Is malfunctioning part detected?
YES >> Refer to SRC-50, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006219980
WARNING:
 Before servicing, turn ignition sw itch OFF, disconnect battery negative terminal and wait at least 3
minutes. (To discharge backup capacitor.)
 Never use unspecified tester or other measuring device.
DIAGNOSTIC PROCEDURE
1.CHECK HARNESS CONNECTOR
Check the connection of harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace harness connectors.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1023 PASS A/B INDCTR CKT [UNIT FAIL] Passenger air bag OFF indicator circuit
is open or shorted to ground or the cir-
cuits are shorted each other  Disconnection of wiring harness
 Malfunction in front passenger air
bag OFF indicator
 Malfunction in air bag diagnosis sen- sor 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

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

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