sensor 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

DIAGNOSIS SENSOR UNITSRC-23
< ECU DIAGNOSIS INFORMATION >
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SRC
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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 >
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SRC
N
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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-26
< ECU DIAGNOSIS INFORMATION >
DIAGNOSIS SENSOR UNIT
B1313
B1315
B1316
B1317SATELLITE SENS LH
[COMM FAIL]
Rear satellite sensor LH is malfunctioning SRC-190, "
DTC
Logic"
B1314
SATELLITE SENS LH
[UNMATCH] Rear satellite sensor LH is out of the specified specification SRC-192, "DTC
Logic"
DTC Diagnostic item Explanation Reference page
Revision: 2010 May2011 QX56

INSPECTION AND ADJUSTMENTSRC-39
< BASIC INSPECTION >
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SRC
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPL ACING CONTROL UNIT : Description
INFOID:0000000006219959
When replacing or removing and installing passenger seat, always perform zero point reset so that Occupant
Detection System is activated normally.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000006219960
WORK PROCEDURE WHEN REPLACING CONTROL UNIT
1.PERFORM ZERO POINT RESET
Perform zero point reset. Refer to SRC-39, "
ZERO POINT RESET : Special Repair Requirement".
>> END
ZERO POINT RESET
ZERO POINT RESET : DescriptionINFOID:0000000006219961
Zero point reset is an initializing procedure for occupant detection sensor that must be performed when replac-
ing or removing and installing passenger seat.
If zero point reset is not performed, the initializati on is incomplete and Occupant Detection System does not
operate normally.
NOTE:
 When replacing passenger seat with a NISSAN genuine part, air bag warning lamp blinks if zero point reset
is incomplete.
 When zero point reset is performed once after removal and installation of passenger seat, CONSULT-III dis-
plays “complete” and air bag warning does not blink.
 When reinstalling passenger seat after removal, the initial value for occupant detection sensor changes, and
Occupant Detection System does not operate normally.
 Always perform zero point reset after performing the work as per the following.
- Reinstallation of passenger seat
- Replacement of passenger seat with a seat that is zero point reset complete.
ZERO POINT RESET : Special Repair RequirementINFOID:0000000006219962
1.PERFORM ZERO POINT RESET
1. Perform zero point reset. NOTE:
When performing zero point reset, be careful of the items described as per the following.
 Perform zero point reset after installing passenger seat to the vehicle
 Do not put any objects on passenger seat
 Do not apply excessive vibration to the vehicle
 Do not touch the vehicle
 Do not tilt the vehicle
2. Select start on “Zero point reset function” scr een from, WORK SUPPORT of CONSULT-III “OCCUPANT
DETECTION”.
3. “Zero point reset” starts.
>> GO TO 2.
2.CONFIRMATION OF SETTING
1. Proceed to “Zero point reset function” screen fr om work support of CONSULT-III “OCCUPANT DETEC-
TION”.
2. Check that “Complete” or “Incomplete” is displayed on “Zero point reset status”.
CAUTION:
Revision: 2010 May2011 QX56

SRC-40
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
 “Complete” is displayed on “zero point reset current status” if the seat is reinstalled by seat removal
and installation, or “zero poin t reset” is already performed.
 “Zero point reset current status” displays “Incompl ete” if a new seat is installed. When turning key
switch ON without performing zero point reset, air bag warning lamp blinks. When zero point reset is
performed, air bag wa rning lamp turns OFF.
 Air bag warning lamp blinks in user mode only.
 Air bag sensor unit does not record whethe r or not zero point reset is performed.
Is condition
“ALREADY PERFORMED”?
YES >> Print out “ZERO POINT RESET CURRENT STATUS” screen, and inspection end.
NO >> Check condition as per the following, and perform zero point reset again.  Passenger seat is occupied by an object.
 Excessive vibration is applied while performing zero point reset.
 Occupant detection system is malfunctioning.NOTE:
If “Incomplete” is displayed on “zero point reset cu rrent status”, zero point reset is not completed
normally. Check the condition as per the following and perform zero point reset again.
 Passenger seat is occupied by an object.
 Excessive vibration is applied while performing zero point reset.
 Occupant detection system is malfunctioning.
Revision: 2010 May2011 QX56

B1001, B1002, B1003, B1004, B1005 DIAGNOSIS SENSOR UNIT
SRC-41
< DTC/CIRCUIT DIAGNOSIS >
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M A
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SRC
N
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DTC/CIRCUIT DIAGNOSIS
B1001, B1002, B1003, B1004, B 1005 DIAGNOSIS SENSOR UNIT
DTC LogicINFOID:0000000006219963
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-41, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006219964
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-41, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1001
B1002
B1003
B1004
B1005 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

SRC-42
< DTC/CIRCUIT DIAGNOSIS >
B1006, B1007, B1008, B1009, B1010 DIAGNOSIS SENSOR UNIT
B1006, B1007, B1008, B1009, B1010 DIAGNOSIS SENSOR UNIT
DTC LogicINFOID:0000000006219965
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-42, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006219966
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-42, "DTC Logic"
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
DTCDisplay contents of
CONSULT-III DTC detecting condition Possible cause
B1006
B1007
B1008
B1009
B1010 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

B1011, B1012, B1013, B1014, B1015 DIAGNOSIS SENSOR UNIT
SRC-43
< DTC/CIRCUIT DIAGNOSIS >
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M A
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SRC
N
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B1011, B1012, B1013, B1014, B1015 DIAGNOSIS SENSOR UNIT
DTC LogicINFOID:0000000006219967
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-43, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006219968
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-43, "DTC Logic"
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
DTCDisplay contents of
CONSULT-III DTC detecting condition Possible cause
B1011
B1012
B1013
B1014
B1015 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56