2011 INFINITI QX56 belt

SYSTEMSRC-13
< SYSTEM DESCRIPTION >
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 Operation of air bag diagnosis sensor unit when air bag diagnosis sensor unit receives information from Occupant Detection System.
 Even if zero point reset is “complete”, always perfo rm zero point reset after the removal and installation of
seat or the removal of control unit harness connector.
Status (front passenger
seat) Passenger air bag Front passenger air
bag OFF indicatorAir bag warning lamp
Seat belt warning lamp
(when front passenger
seat is unbuckled)
Empty Suppress OFF OFF OFF
An object Suppress ON OFF OFF
Child/ child-seat Suppress ON OFF ON
Adult Enable to deploy OFF OFF ON
Malfunction Suppress ON Blinking OFF
Zero point reset
Not yet performed (NIS-
SAN genuine parts
only) Suppress ON Blinking OFF
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (AIR BAG)SRC-15
< SYSTEM DESCRIPTION >
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DIAGNOSIS MODE
The diagnosis mode can only be switched when a malfuncti on is detected in the user mode. Malfunctioning
system is indicated according to blinking pattern of air bag warning lamp.
How to Read Air Bag Warning Lamp
1. Follow the procedures of “PROCEDURE TO CHANG E DIAGNOSIS MODE”, and switch to the diagnosis
mode.
2. Turn ignition switch ON. Check the blinking pattern of air bag warning lamp. There are 2 blinking patterns for the air bag warning lamp as per the following items.
 Front air bag system: 3 second blink followed by a 0.5 second blink repeated.
Air bag warning lamp operation (user mode) SRS condition Reference item
 No malfunction is detected
 No further action is necessary —
 The system is malfunctioning
 Self diagnostic result is not erased af- ter repair Erase “Self Diagnostic Result”
Refer to
SRC-19, "
CONSULT-III
Function", How to Erase Self-diag-
nostic Result
Battery voltage is low (less than 9 V) Check “CAUSE OF WARNING” in
“Special Function” with CONSULT-III
Refer to
SRC-19, "
CONSULT-III
Function"
Intermittent malfunction is detected in
the past Go to
GI-40, "Intermittent Incident"
 Air bag is deployed
 Seat belt pre-tensioner is deployed Go to
SRC-174, "Diagnosis Proce-
dure" or SRC-175, "Diagnosis Pro-
cedure"
 Air bag diagnosis sensor unit is mal-
functioning
 Air bag power supply circuit is mal- functioning
 Air bag warning lamp circuit is mal-
functioning Go to
SRC-193, "
Diagnosis Proce-
dure"
 Air bag diagnosis sensor unit is mal-
functioning
 Air bag warning lamp circuit is mal- functioning Go to
SRC-194, "
Diagnosis Proce-
dure"
SHIA0011E
SHIA0012E
SHIA0013E
SHIA0014E
Revision: 2010 May2011 QX56

SRC-16
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AIR BAG)
 Side air bag system: Two 1.5 second blinks followed by a 0.5 second blink repeated.
Front air bag system
Number of 0.5 second blinks Malfunctioning items Blinking pattern0  Self-diagnostic result is not erased after repair
 Intermittent malfunction is detected in the past Refer to the following items
 Refer to How to Erase Self-di-
agnostic Result
 GI-40, "
Intermittent Incident"
1 Seat belt pre-tensioner RH Refer to the following items

SRC-83, "
DTC Logic"
SRC-85, "DTC Logic"
SRC-87, "DTC Logic"
SRC-89, "DTC Logic"
2 Driver air bag module Refer to the following items

SRC-63, "
DTC Logic"
SRC-65, "DTC Logic"
SRC-67, "DTC Logic"
SRC-69, "DTC Logic"
SRC-81, "DTC Logic"
3 Seat belt pre-tensioner LH Refer to the following items

SRC-91, "
DTC Logic"
SRC-93, "DTC Logic"
SRC-95, "DTC Logic"
SRC-97, "DTC Logic"
SRC-177, "DTC Logic"
5 Occupant detction system control unit Refer to the following items

SRC-44, "
DTC Logic"
SRC-46, "DTC Logic"
SRC-48, "DTC Logic"
SRC-52, "DTC Logic"
SRC-179, "DTC Logic"
6 Crash zone sensor Refer to the following items

SRC-55, "
DTC Logic"
SRC-57, "DTC Logic"
SRC-59, "DTC Logic"
SRC-60, "DTC Logic"
7 Air bag diagnosis sensor unit Refer to the following items

SRC-41, "
DTC Logic"
SRC-42, "DTC Logic"
SRC-43, "DTC Logic"
SRC-54, "DTC Logic"
SRC-62, "DTC Logic"
SRC-71, "DTC Logic"
SRC-80, "DTC Logic"
SRC-99, "DTC Logic"
SRC-100, "DTC Logic"
SRC-111, "DTC Logic"
SRC-128, "DTC Logic"
SRC-146, "DTC Logic"
SRC-147, "DTC Logic"
SRC-156, "DTC Logic"
SRC-173, "DTC Logic"
SRC-181, "DTC Logic"
SRC-182, "DTC Logic"
8 Passenger air bag module Refer to the following items

SRC-72, "
DTC Logic"
SRC-74, "DTC Logic"
SRC-76, "DTC Logic"
SRC-78, "DTC Logic"
11 Front passenger air bag OFF indicator Refer to SRC-50, "DTC Logic"
Revision: 2010 May2011 QX56

DIAGNOSIS SENSOR UNITSRC-23
< ECU DIAGNOSIS INFORMATION >
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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

DIAGNOSIS SENSOR UNITSRC-25
< ECU DIAGNOSIS INFORMATION >
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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

B1081 SEAT BELT PRE-TENSIONER RHSRC-83
< DTC/CIRCUIT DIAGNOSIS >
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B1081 SEAT BELT PRE-TENSIONER RH
DTC LogicINFOID:0000000006220018
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-83, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006220019
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.REPLACE SEAT BELT PRE-TENSIONER
1. Replace seat belt pre-tensioner RH. Refer to SR-28, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-83, "
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-83, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1081 PRE-TEN FRONT RH
[OPEN] Seat belt pre-tensioner RH circuit is open  Disconnection of wiring harness and open
 Malfunction in seat belt pre-tensioner RH
 Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56

SRC-84
< DTC/CIRCUIT DIAGNOSIS >
B1081 SEAT BELT PRE-TENSIONER RH
NO >> INSPECTION END
Revision: 2010 May2011 QX56

B1082 SEAT BELT PRE-TENSIONER RHSRC-85
< DTC/CIRCUIT DIAGNOSIS >
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B1082 SEAT BELT PRE-TENSIONER RH
DTC LogicINFOID:0000000006220020
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-85, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006220021
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.REPLACE SEAT BELT PRE-TENSIONER
1. Replace seat belt pre-tensioner RH. Refer to SR-28, "
Removal and Installation".
2. Perform DTC confirmation procedure. Refer to SRC-85, "
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-85, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
DTC Display contents of
CONSULT-III DTC detecting condition Possible cause
B1082 PRE-TEN FRONT RH
[VB-SHORT] Seat belt pre-tensioner RH circuit is
shorted to power supply circuit  Disconnection of wiring harness and short
 Malfunction in seat belt pre-tensioner RH
 Malfunction in air bag diagnosis sensor unit
Revision: 2010 May2011 QX56