SRS-32
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
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.
CURTAIN MODULE LH
[OPEN]
[B1150]The LH side 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 curtain air bag module circuit is shorted to some
power supply circuits.
CURTAIN MODULE LH
[GND-SHORT]
[B1152]The LH side curtain air bag module circuit is shorted to
ground.
CURTAIN MODULE LH
[SHORT]
[B1153]The circuits for the LH side curtain air bag module are
shorted to each other.
CURTAIN MODULE RH
[OPEN]
[B1145]The RH side 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 curtain air bag module circuit is shorted to some
power supply circuits.
CURTAIN MODULE RH
[GND-SHORT]
[B1147]The RH side curtain air bag module circuit is shorted to
ground.
CURTAIN MODULE RH
[SHORT]
[B1148]The circuits for the RH side 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. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement
TROUBLE DIAGNOSIS
SRS-33
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SRS
Revision: June 20062007 Versa
NOTE:
Follow the procedures in numerical order when performing repairs. Confirm whether the repair has been suc-
cessful using air bag warning lamp or CONSULT-II after each repair. If malfunction is still observed, proceed to
the next step. When malfunction has been eliminated, further repair work is not required.
OCCUPANT SENS C/U
[COMM FAIL]
[B1022]Communication between the occupant classification system
control unit and air bag diagnosis sensor unit is interrupted.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.
FRONTAL COLLISION
DETECTION
[B1209]Driver and front passenger air bag modules are deployed. Refer to SRS-54, "
COLLISION DIAG-
NOSIS" .
SIDE COLLISION
DETECTION
[B1210]Side or curtain air bag modules are deployed. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement
TROUBLE DIAGNOSIS
SRS-39
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SRS
Revision: June 20062007 Versa
Trouble Diagnosis: “AIR BAG” Warning Lamp Does Not Turn OffEHS001V6
DIAGNOSTIC PROCEDURE 7
1. CHECK CONDITION OF AIR BAG MODULE
Inspect for any deployed air bag modules or seat belt pre-tensioners.
Are any air bag modules or seat belt pre-tensioners deployed?
Yes >> Refer to SRS-54, "COLLISION DIAGNOSIS" .
No >> GO TO 2.
2. CHECK THE AIR BAG FUSE
Check 10A fuse [No. 1, located in the fuse block (J/B)].
Refer to PG-4, "
POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK AIR BAG FUSE AGAIN
Replace 10A fuse [No. 1, located in the fuse block (J/B)] and turn ignition switch ON.
Does the fuse blow again?
Yes >> Repair harness.
No >> Inspection End.
4. CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Connect CONSULT-II and touch “START”.
Is
“AIR BAG” displayed on CONSULT-II?
Yes >> GO TO 5.
No >> Visually inspect the air bag diagnosis sensor unit har-
ness connections. If the connections are OK, replace
the air bag diagnosis sensor unit. Refer to SRS-52,
"Removal and Installation" .
5. CHECK HARNESS CONNECTION
Check for loose connections between the combination meter and the air bag diagnosis sensor unit.
OK or NG
OK >> Replace air bag diagnosis sensor unit. Refer to SRS-52, "Removal and Installation" .
NG >> Properly connect the combination meter and air bag diagnosis sensor unit harness connectors. If
“AIR BAG” warning lamp still does not turn off, replace the wiring harness.
BCIA0030E
SRS-50
SIDE AIR BAG (SATELLITE) SENSOR
Revision: June 20062007 Versa
SIDE AIR BAG (SATELLITE) SENSORPFP:98830
Removal and InstallationEHS001UI
REMOVAL
WAR NIN G:
Do not reuse center pillar upper garnish if removed.
CAUTION:
Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at
least 3 minutes.
Do not disassemble the side air bag (satellite) sensor.
Do not use old nuts after removal; replace with new nuts.
Replace the side air bag (satellite) sensor if it has been
dropped or sustained an impact.
Check side air bag (satellite) sensor to make sure it is free
of deformities, dents, cracks or rust. If it shows any visible
signs of damage, replace it with a new one.
1. Disconnect both the negative and positive battery cables, then wait at least 3 minutes.
2. Remove the front seat belt retractor. Refer to SB-3, "
Removal and Installation of Front Seat Belt" .
3. Remove the nuts (1) and remove side air bag (satellite) sensor
(2).
⇐: Vehicle front
4. Disconnect the side air bag (satellite) sensor harness connector
(3).
INSTALLATION
Installation is in the reverse order of removal.
After the work is completed, perform self-diagnosis to make sure no malfunction is detected. Refer to
SRS-21, "
SRS Operation Check" .
WHIA0321E
WHIA0322E
FRONT SEAT BELT PRE-TENSIONER
SRS-51
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SRS
Revision: June 20062007 Versa
FRONT SEAT BELT PRE-TENSIONERPFP:86884
Removal and InstallationEHS001UJ
For removal and installation procedures, refer to SB-3, "Removal and Installation of Front Seat Belt" .
SRS-52
DIAGNOSIS SENSOR UNIT
Revision: June 20062007 Versa
DIAGNOSIS SENSOR UNITPFP:28556
Removal and InstallationEHS001UK
REMOVAL
WAR NIN G:
Before disconnecting diagnosis sensor unit harness connector(s), be sure to disconnect harness con-
nectors from air bag modules and front seat belt pre-tensioner to prevent deployment by static elec-
tricity.
CAUTION:
Before servicing the SRS, turn the ignition switch OFF, disconnect both battery cables and wait at
least 3 minutes.
Do not disassemble diagnosis sensor unit.
Do not use old bolts; replace with new bolts.
Replace the diagnosis sensor unit if it has been dropped or sustained an impact.
Check diagnosis sensor unit bracket to make sure it is free of deformities, dents, cracks or rust. If
it shows any visible signs of damage, replace with new one.
The diagnosis sensor unit must always be installed with the arrow mark "⇐" pointing toward the
front of the vehicle for proper operation.
1. Disconnect the negative and positive battery cables, then wait at least 3 minutes.
2. Disconnect the harness connectors for each air bag module and seat belt pre-tensioner. Refer to SRS-41,
"DRIVER AIR BAG MODULE" , SRS-46, "FRONT PASSENGER AIR BAG MODULE" , SRS-47, "SIDE
CURTAIN AIR BAG MODULE" , SRS-51, "FRONT SEAT BELT PRE-TENSIONER" .
3. Remove center console assembly. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
4. Disconnect diagnosis sensor unit connectors.
5. Remove the bolts and the ground bolt, then remove the diagnosis sensor unit.
INSTALLATION
Installation is in the reverse order of removal.
The diagnosis sensor unit must always be installed with the arrow mark "⇐" pointing toward the front of
the vehicle.
Follow the tightening sequence 1,2,3,4 as shown.
After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to
SRS-21, "
SRS Operation Check" .
ECU DISCRIMINATED NO.
After replacing the diagnosis sensor unit, confirm that the diagnosis sensor unit identification is correct for the
vehicle as equipped. Refer to SRS-19, "
CONSULT-II Function (AIR BAG)" .
1. Diagnosis sensor unit connectors 2. Ground Bolt 3. Bolt
4. Diagnosis sensor unit⇐Vehicle front
WHIA0323E
SRS-54
COLLISION DIAGNOSIS
Revision: June 20062007 Versa
COLLISION DIAGNOSISPFP:00015
For Frontal CollisionEHS001VB
Check the SRS components using the following table.
After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to
SRS-21, "
SRS Operation Check" .
SRS INSPECTION (FOR FRONTAL COLLISION)
Part SRS is activated SRS is NOT activated
Driver air bag module If the driver air bag
has deployed:
REPLACE
Install with new fas-
teners.If the driver air bag has NOT been activated:
1. Remove driver air bag module. Check harness cover and connectors for damage,
terminals for deformities, and harness for binding.
2. Install driver air bag module into the steering wheel to check fit and alignment with
the wheel.
3. If no damage is found, reinstall with new fasteners.
4. If damaged—REPLACE. Install driver air bag modules with new fasteners.
Front passenger air
bag moduleIf the front passenger
air bag has deployed:
REPLACE
Install with new fas-
teners.If the front passenger air bag has NOT been activated:
1. Remove front passenger air bag module. Check harness cover and connectors for
damage, terminals for deformities, and harness for binding.
2. Install front passenger air bag module into the instrument panel to check fit with the
instrument panel.
3. If no damage is found, reinstall with new fasteners.
4. If damaged—REPLACE. Install front passenger air bag modules with new fasten-
ers.
Crash zone sensor If any of the front air
bags or seat belt pre-
tensioners* have
been activated:
REPLACE the crash
zone sensor and
bracket with new fas-
teners.
*: Confirm seat belt
pre-tensioner activa-
tion using CONSULT-
II only.If the front air bags or seat belt pre-tensioners have NOT been activated:
1. Remove the crash zone sensor. Check harness connectors for damage, terminals
for deformities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the crash zone
sensor and bracket.
3. Install the crash zone sensor to check fit.
4. If no damage is found, reinstall with new fasteners.
5. If damaged—REPLACE the crash zone sensor and bracket with new fasteners.
Seat belt pre-ten-
sioner assemblies
(All applicable loca-
tions: buckle, reel, lap
outer)If either the driver or
passenger seat belt
pre-tensioner* has
been activated:
REPLACE all seat
belt pre-tensioner
assemblies with new
fasteners.
*: Confirm seat belt
pre-tensioner activa-
tion using CONSULT-
II only.If the pre-tensioners have NOT been activated:
1. Remove seat belt pre-tensioners.
Check harness cover and connectors for damage, terminals for deformities, and
harness for binding.
2. Check belts for damage and anchors for loose mounting.
3. Check retractor for smooth operation.
4. Check seat belt adjuster for damage.
5. Check for deformities of the center pillar inner.
6. If the center pillar inner has no damage, REPLACE the seat belt pre-tensioner
assembly.
7. If no damage is found, reinstall seat belt pre-tensioner assembly.
8. If damaged—REPLACE. Install the seat belt pre-tensioners with new fasteners.
Diagnosis sensor unit If any of the SRS
components have
been activated:
REPLACE the diag-
nosis sensor unit.
Install with new fas-
teners.If none of the SRS components have been activated:
1. Check case for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall with new fasteners.
4. If damaged—REPLACE. Install diagnosis sensor unit with new fasteners.
COLLISION DIAGNOSIS
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Revision: June 20062007 Versa
Seat belt pre-ten-
sioner assemblies
(All applicable loca-
tions: buckle, reel, lap
outer)If either the driver or
passenger seat belt
pre-tensioner* has
been activated:
REPLACE all seat
belt pre-tensioner
assemblies with new
fasteners.
*: Confirm seat belt
pre-tensioner activa-
tion using CONSULT-
II only.If the pre-tensioners have NOT been activated:
1. Remove seat belt pre-tensioners.
Check harness cover and connectors for damage, terminals for deformities, and
harness for binding.
2. Check belts for damage and anchors for loose mounting.
3. Check retractor for smooth operation.
4. Check seat belt adjuster for damage.
5. Check for deformities of the center pillar inner.
6. If the center pillar inner has no damage, REPLACE the seat belt pre-tensioner
assembly.
7. If no damage is found, reinstall seat belt pre-tensioner assembly.
8. If damaged—REPLACE. Install the seat belt pre-tensioners with new fasteners.
Seat (with front side
air bag)If either the front LH
or front RH side air
bag modules has
been deployed:
REPLACE front seat-
back assembly on the
deployed side.If the front LH or front RH side air bag modules have NOT deployed:
1. Visually check the seat on the collision side.
2. Remove the seat on the collision side and check the following for damage and
deformities.
–Harness, connectors and terminals
–Frame and recliner (for front and rear seat), and also adjuster and slides (for front
seat)
3. If no damage is found, reinstall the seat.
4. If damaged—REPLACE the damaged seat parts using new fasteners. If the front
seat back is damaged, the front seat back assembly must be replaced.
Center inner pillar 1. Check the center inner pillar on the collision side for damage (dents, cracks, deformation).
2. If damaged—REPAIR the center inner pillar.
Trim/headlining 1. Check for visible signs of damage (dents, cracks, deformation) of the interior trim on the collision side.
2. If damaged—REPLACE the damaged trim parts. Part SRS is activated SRS is NOT activated