2004 INFINITI QX56 belt
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SRS-10
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
SRS Components Parts LocationEHS000WB
1. Side curtain air bag modules 2. Front RH side air bag module 3. Belt tension sensor
4. RH side air bag (satellite) sensor 5. Front RH seat belt pre-ten-
sioner6. Seat belt buckle pre-tensioner assembly
RH
7. Occupant classification system sen-
sor8. Occupant classification system
control unit9. Front passenger air bag off indicator
10. Front passenger air bag module 11. Crash zone sensor 12. Air bag warning lamp
13. Spiral cable 14. Driver air bag module 15. LH side air bag (satellite) sensor
16. Front LH seat belt pre-tensioner 17. Air bag diagnosis sensor unit 18. Front LH side air bag module
WHIA0216E
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TROUBLE DIAGNOSIS
SRS-21
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Revision: August 20072004 QX56
Warning lamp examples
“AIR BAG” warning lamp operation-User mode- SRS condition Reference item
No malfunction is detected.
No further action is necessary.—
The system is malfunctioning and
needs to be repaired as indicated.Go to SRS-22, "DIAGNOSTIC
PROCEDURE 2" or SRS-37,
"DIAGNOSTIC PROCEDURE 6" .
Air bag is deployed.
Seat belt pre-tensioner is deployed.
Seat belt buckle pre-tensioner
assembly is deployed.Go to SRS-60, "
COLLISION DIAG-
NOSIS" .
Air bag diagnosis sensor unit is mal-
functioning.
Air bag power supply circuit is mal-
functioning.
SRS air bag warning lamp circuit is
malfunctioning.Go to SRS-43, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Tu rn O ff" .
Air bag diagnosis sensor unit is mal-
functioning.
Air bag warning lamp circuit is mal-
functioning.Go to SRS-44, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Tu rn O n" .
SHIA0 011 E
SHIA0012E
SHIA0013E
SHIA0014E
Page 3086 of 3371
![INFINITI QX56 2004 Factory Service Manual TROUBLE DIAGNOSIS
SRS-25
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Revision: August 20072004 QX56
SATELLITE SENS RH
[UNIT FAIL]
[B1113] or [B1114]
SATELLITE SENS RH
[COMM FAIL]
[ B 111 5 ]
RH side air bag (satellit](/manual-img/42/57034/w960_57034-3085.png "INFINITI QX56 2004 Factory Service Manual TROUBLE DIAGNOSIS
SRS-25
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Revision: August 20072004 QX56
SATELLITE SENS RH
[UNIT FAIL]
[B1113] or [B1114]
SATELLITE SENS RH
[COMM FAIL]
[ B 111 5 ]
RH side air bag (satellit")
TROUBLE DIAGNOSIS
SRS-25
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SATELLITE SENS RH
[UNIT FAIL]
[B1113] or [B1114]
SATELLITE SENS RH
[COMM FAIL]
[ B 111 5 ]
RH side air bag (satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace the RH side air bag (satel-
lite) sensor.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness.
PRE-TEN FRONT LH
[OPEN]
[B1086]
The circuit for front LH seat belt pre-tensioner is open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front LH seat belt pre-ten-
sioner.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. PRE-TEN FRONT LH
[VB-SHORT]
[B1087]
The circuit for front LH seat belt pre-tensioner is shorted to
some power supply circuit.
PRE-TEN FRONT LH
[GND-SHORT]
[B1088]
The circuit for front LH seat belt pre-tensioner is shorted to
ground.
PRE-TEN FRONT LH
[SHORT]
[B1089]
The circuits for the front LH seat belt pre-tensioner are
shorted to each other.
PRE-TEN FRONT RH
[OPEN]
[B1081]
The circuit for front RH seat belt pre-tensioner is open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front RH seat belt pre-ten-
sioner.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. PRE-TEN FRONT RH
[VB-SHORT]
[B1082]
The circuit for front RH seat belt pre-tensioner is shorted to
some power supply circuit.
PRE-TEN FRONT RH
[GND-SHORT]
[B1083]
The circuit for front RH seat belt pre-tensioner is shorted to
ground.
PRE-TEN FRONT RH
[SHORT]
[B1084]
The circuits for the front RH seat belt pre-tensioner are
shorted to each other.
PRE-TEN2 FRONT LH
[OPEN]
[B1182]
The circuit for front LH seat belt buckle pre-tensioner is
open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front LH seat belt buckle
pre-tensioner.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. PRE-TEN2 FRONT LH
[VB-SHORT]
[B1183]
The circuit for front LH seat belt buckle pre-tensioner is
shorted to some power supply circuit.
PRE-TEN2 FRONT LH
[GND-SHORT]
[B1184]
The circuit for front LH seat belt buckle pre-tensioner is
shorted to ground.
PRE-TEN2 FRONT LH
[SHORT]
[B1185]
The circuits for the front LH seat belt buckle pre-tensioner
are shorted to each other. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement
Page 3087 of 3371
![INFINITI QX56 2004 Factory Service Manual SRS-26
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
PRE-TEN2 FRONT RH
[OPEN]
[B1177]The circuit for front RH seat belt buckle pre-tensioner is
open.1. Visually check the wiring harness
connecti](/manual-img/42/57034/w960_57034-3086.png "INFINITI QX56 2004 Factory Service Manual SRS-26
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
PRE-TEN2 FRONT RH
[OPEN]
[B1177]The circuit for front RH seat belt buckle pre-tensioner is
open.1. Visually check the wiring harness
connecti")
SRS-26
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
PRE-TEN2 FRONT RH
[OPEN]
[B1177]The circuit for front RH seat belt buckle pre-tensioner is
open.1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front RH seat belt buckle
pre-tensioner.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. PRE-TEN2 FRONT RH
[VB-SHORT]
[B1178]
The circuit for front RH seat belt buckle pre-tensioner is
shorted to some power supply circuit.
PRE-TEN2 FRONT RH
[GND-SHORT]
[B1179]
The circuit for front RH seat belt buckle pre-tensioner is
shorted to ground.
PRE-TEN2 FRONT RH
[SHORT]
[B1180]
The circuits for the front RH seat belt buckle pre-tensioner
are shorted to each other.
FR CURTN MODULE LH
[OPEN]
[B1198]
The LH side front curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace LH side curtain air bag
module.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. FR CURTN MODULE LH
[VB-SHORT]
[B1199]
The LH side front curtain air bag module circuit is shorted
to some power supply circuits.
FR CURTN MODULE LH
[GND-SHORT]
[B1200]
The LH side front curtain air bag module circuit is shorted
to ground.
FR CURTN MODULE LH
[SHORT]
[B1201]
The circuits for the LH side front curtain air bag module are
shorted to each other.
FR CURTN MODULE RH
[OPEN]
[B1193]
The RH side front curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace RH side curtain air bag
module.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. FR CURTN MODULE RH
[VB-SHORT]
[B1194]
The RH side front curtain air bag module circuit is shorted
to some power supply circuits.
FR CURTN MODULE RH
[GND-SHORT]
[B1195]
The RH side front curtain air bag module circuit is shorted
to ground.
FR CURTN MODULE RH
[SHORT]
[B1196]
The circuits for the RH side front curtain air bag module are
shorted to each other.
CURTAIN MODULE LH
[OPEN]
[B1150]
The LH side rear curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace LH side curtain air bag
module.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. CURTAIN MODULE LH
[VB-SHORT]
[B1151]
The LH side rear curtain air bag module circuit is shorted to
some power supply circuits.
CURTAIN MODULE LH
[GND-SHORT]
[B1152]
The LH side rear curtain air bag module circuit is shorted to
ground.
CURTAIN MODULE LH
[SHORT]
[B1153]
The circuits for the LH side rear curtain air bag module are
shorted to each other. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement
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TROUBLE DIAGNOSIS
SRS-27
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Revision: August 20072004 QX56
NOTE:
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is
eliminated using air bag warning lamp or CONSULT-II each time repair is finished. If malfunction is still
observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.
CURTAIN MODULE RH
[OPEN]
[B1145]The RH side rear curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace RH side curtain air bag
module.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. CURTAIN MODULE RH
[VB-SHORT]
[B1146]
The RH side rear curtain air bag module circuit is shorted
to some power supply circuits.
CURTAIN MODULE RH
[GND-SHORT]
[B1147]
The RH side rear curtain air bag module circuit is shorted
to ground.
CURTAIN MODULE RH
[SHORT]
[B1148]
The circuits for the RH side rear curtain air bag module are
shorted to each other.
CONTROL UNIT
[B1XXX]
Air bag diagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the air bag diagnosis sen-
sor unit.
OCCUPANT SENS C/U
[UNIT FAIL]
[B1017], [B1020] or [B1021]
Occupant classification system is malfunctioning. 1. Replace RH front seat cushion/
occupant classification system con-
trol unit assembly.
OCCUPANT SENS C/U
[COMM FAIL]
[B1022]
Communication between the occupant classification sys-
tem control unit and air bag diagnosis sensor unit is inter-
rupted.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace RH front seat cushion/
occupant classification system con-
trol unit assembly.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness.
OCCUPANT SENS
[UNIT FAIL]
[B1018]
Occupant classification sensor is malfunctioning. 1. Replace RH front seat cushion/
occupant classification system con-
trol unit assembly.
BELT TENSION SENS
[UNIT FAIL]
[B1019]
Belt tension sensor is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace RH front seat belt assem-
bly.
4. Replace RH front seat cushion/
occupant classification system con-
trol unit assembly.
PASS A/B INDCTR CKT
[B1023]
Front passenger air bag off indicator is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger air bag off
indicator.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement
Page 3094 of 3371
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SRS-33
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Revision: August 20072004 QX56
SIDE MODULE LH
[OPEN]
[B1134]Front LH side air bag module circuit is open. 1. Visually check the wiring harness
con](/manual-img/42/57034/w960_57034-3093.png "INFINITI QX56 2004 Factory Service Manual TROUBLE DIAGNOSIS
SRS-33
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Revision: August 20072004 QX56
SIDE MODULE LH
[OPEN]
[B1134]Front LH side air bag module circuit is open. 1. Visually check the wiring harness
con")
TROUBLE DIAGNOSIS
SRS-33
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SIDE MODULE LH
[OPEN]
[B1134]Front LH side air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front LH seat back assem-
bly (front LH side air bag module).
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. SIDE MODULE LH
[VB-SHORT]
[B1135]
Front LH side air bag module circuit is shorted to some
power supply circuit.
SIDE MODULE LH
[GND-SHORT]
[B1136]
Front LH side air bag module circuit is shorted to ground.
SIDE MODULE LH
[SHORT]
[B1137]
Front LH side air bag module circuits are shorted to each
other.
SIDE MODULE RH
[OPEN]
[B1129]
Front RH side air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front RH seat back assem-
bly (front RH side air bag module).
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. SIDE MODULE RH
[VB-SHORT]
[B1130]
Front RH side air bag module circuit is shorted to some
power supply circuit.
SIDE MODULE RH
[GND-SHORT]
[B1131]
Front RH side air bag module circuit is shorted to ground.
SIDE MODULE RH
[SHORT]
[B1132]
Front RH side air bag module circuits are shorted to each
other.
SATELLITE SENS LH
[UNIT FAIL]
[B1118] or [B1119]
SATELLITE SENS LH
[COMM FAIL]
[B1120]
LH side air bag (satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace the LH side air bag (satel-
lite) sensor.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness.
SATELLITE SENS RH
[UNIT FAIL]
[B1113] or [B1114]
SATELLITE SENS RH
[COMM FAIL]
[ B 111 5 ]
RH side air bag (satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace the RH side air bag (satel-
lite) sensor.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness.
PRE-TEN FRONT LH
[OPEN]
[B1086]
The circuit for front LH seat belt pre-tensioner is open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front LH seat belt pre-ten-
sioner.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. PRE-TEN FRONT LH
[VB-SHORT]
[B1087]
The circuit for front LH seat belt pre-tensioner is shorted to
some power supply circuit.
PRE-TEN FRONT LH
[GND-SHORT]
[B1088]
The circuit for front LH seat belt pre-tensioner is shorted to
ground.
PRE-TEN FRONT LH
[SHORT]
[B1089]
The circuits for the front LH seat belt pre-tensioner are
shorted to each other. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement
Page 3095 of 3371
![INFINITI QX56 2004 Factory Service Manual SRS-34
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
PRE-TEN FRONT RH
[OPEN]
[B1081]The circuit for front RH seat belt pre-tensioner is open. 1. Visually check the wiring harness
connections.
2.](/manual-img/42/57034/w960_57034-3094.png "INFINITI QX56 2004 Factory Service Manual SRS-34
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
PRE-TEN FRONT RH
[OPEN]
[B1081]The circuit for front RH seat belt pre-tensioner is open. 1. Visually check the wiring harness
connections.
2.")
SRS-34
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
PRE-TEN FRONT RH
[OPEN]
[B1081]The circuit for front RH seat belt pre-tensioner is open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front RH seat belt pre-ten-
sioner.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. PRE-TEN FRONT RH
[VB-SHORT]
[B1082]
The circuit for front RH seat belt pre-tensioner is shorted to
some power supply circuit.
PRE-TEN FRONT RH
[GND-SHORT]
[B1083]
The circuit for front RH seat belt pre-tensioner is shorted to
ground.
PRE-TEN FRONT RH
[SHORT]
[B1084]
The circuits for the front RH seat belt pre-tensioner are
shorted to each other.
PRE-TEN2 FRONT LH
[OPEN]
[B1182]
The circuit for front LH seat belt buckle pre-tensioner is
open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front LH seat belt buckle
pre-tensioner.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. PRE-TEN2 FRONT LH
[VB-SHORT]
[B1183]
The circuit for front LH seat belt buckle pre-tensioner is
shorted to some power supply circuit.
PRE-TEN2 FRONT LH
[GND-SHORT]
[B1184]
The circuit for front LH seat belt buckle pre-tensioner is
shorted to ground.
PRE-TEN2 FRONT LH
[SHORT]
[B1185]
The circuits for the front LH seat belt buckle pre-tensioner
are shorted to each other.
PRE-TEN2 FRONT RH
[OPEN]
[B1177]
The circuit for front RH seat belt buckle pre-tensioner is
open.1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front RH seat belt buckle
pre-tensioner.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. PRE-TEN2 FRONT RH
[VB-SHORT]
[B1178]
The circuit for front RH seat belt buckle pre-tensioner is
shorted to some power supply circuit.
PRE-TEN2 FRONT RH
[GND-SHORT]
[B1179]
The circuit for front RH seat belt buckle pre-tensioner is
shorted to ground.
PRE-TEN2 FRONT RH
[SHORT]
[B1180]
The circuits for the front RH seat belt buckle pre-tensioner
are shorted to each other.
FR CURTN MODULE LH
[OPEN]
[B1198]
The LH side front curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace LH side curtain air bag
module.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. FR CURTN MODULE LH
[VB-SHORT]
[B1199]
The LH side front curtain air bag module circuit is shorted
to some power supply circuits.
FR CURTN MODULE LH
[GND-SHORT]
[B1200]
The LH side front curtain air bag module circuit is shorted
to ground.
FR CURTN MODULE LH
[SHORT]
[B1201]
The circuits for the LH side front curtain air bag module are
shorted to each other. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement
Page 3097 of 3371
![INFINITI QX56 2004 Factory Service Manual SRS-36
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
BELT TENSION SENS
[UNIT FAIL]
[B1019]
Belt tension sensor is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the](/manual-img/42/57034/w960_57034-3096.png "INFINITI QX56 2004 Factory Service Manual SRS-36
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
BELT TENSION SENS
[UNIT FAIL]
[B1019]
Belt tension sensor is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the")
SRS-36
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
BELT TENSION SENS
[UNIT FAIL]
[B1019]
Belt tension sensor is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace RH front seat belt assem-
bly.
4. Replace RH front seat cushion/
occupant classification system con-
trol unit assembly.
PASS A/B INDCTR CKT
[B1023]
Front passenger air bag off indicator is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger air bag off
indicator.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement