NISSAN X-TRAIL 2003 Electronic Repair Manual

DIAGNOSIS SENSOR UNIT
SRS-39
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SRS
DIAGNOSIS SENSOR UNITPFP:28556
Removal and InstallationEHS000DD
REMOVAL
CAUTION:
lBefore servicing SRS, turn the ignition switch off, disconnect the battery ground cable and wait at
least 3 minutes.
1. Disconnect each harness connector for the air bag module and
seat belt pre-tensioner.
2. Remove center console. Refer toIP-3, "
INSTRUMENT PANEL
ASSEMBLY".
3. Disconnect diagnosis sensor unit connector.
4. Remove ground bolt and diagnosis sensor unit fixing bolts.
CAUTION:
lDo not use old bolts. Replace with new ones.
lCheck diagnosis sensor unit brackets to ensure it is free of
deformities, dents, cracks or rust. If it shows any visible
signs of damage, replace it with new one.
lReplace diagnosis sensor unit if it has been dropped or sustained an impact.
INSTALLATION
To install, reverse the removal procedure sequence.
CAUTION:
lCheck the diagnosis sensor unit for proper installation.
lAfter replacement of diagnosis sensor unit, perform self-diagnosis to check that no malfunction is
detected. Refer toSRS-15, "
SRS Operation Check".
ECU DISCRIMINATED NO.
For NISSAN MODEL T30, the diagnosis sensor unit classification numbers assigned are AA12(without front
side air bag) and AA01(with front side air bag).
PHIA0031E

SRS-40
DISPOSAL OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER
DISPOSAL OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER
PFP:00014
Caution for Air Bag Module and Seat Belt Pre-tensionerEHS000DE
lBefore disposing of air bag module and seat belt pre-tensioner, or vehicles equipped with such systems,
deploy the systems. If such systems have already been deployed due to an accident, dispose of them as
indicated in “SRS-45, "
DISPOSING OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER"
lWhen deploying the air bag module and seat belt pre-tensioner, always use the Special Service Tool;
Deployment tool (KV99106400).
lWhen deploying the air bag module and seat belt pre-tensioner, stand at least 5 m (16 ft) away from the
deployment component.
lWhen deploying air bag module and seat belt pre-tensioner, a fairly loud noise is made, followed by
smoke being released. The smoke is not poisonous, however, be careful not to inhale smoke since it irri-
tates the throat and can cause choking.
lAlways activate one air bag module at a time.
lDue to heat, leave air bag module unattended for more than 30 minutes after deployment. Also leave seat
belt pre-tensioner unattended for more than 10 minutes after deployment.
lBe sure to wear gloves when handling a deployed air bag module and seat belt pre-tensioner.
lNever apply water to the deployed air bag module and seat belt pre-tensioner.
lWash your hands clean after finishing work.
lPlace the vehicle outdoors with an open space of at least 6 m (20 ft) on all sides when deploying air bag
module and seat belt pre-tensioner while mounted in vehicle.
lUse a voltmeter to make sure the vehicle battery is fully charged.
lDo not dispose of the air bag module and seat belt pre-tensioner un-deployed.
CHECKING DEPLOYMENT TOOL
Connecting to battery
CAUTION:
The battery must show voltage of 9.6V or more.
Remove the battery from the vehicle and place it on dry wood blocks
approximately 5 m (16 ft) away from the vehicle.
lWait 3 minutes after the vehicle battery is disconnected before
proceeding.
lConnect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
Make sure the polarity is correct. The right side lamp in the tool,
marked “deployment tool power”, should glow with a green
light. If the right side lamp glows red, reverse the connections
to the battery.
Deployment tool check
Press the deployment tool switch to the “ON” position. The left side
lamp in the tool, marked “air bag connector voltage” should illumi-
nate. If it does not illuminate, replace the tool.
PHIA0003E
SBF266H

DISPOSAL OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER
SRS-41
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SRS
Air bag deployment tool lamp Illumination chart (Battery connected)
*: If this lamp glows red, the tool is connected to the battery incorrectly. Reverse the connections and make sure the lamp glows green.
DEPLOYMENT PROCEDURES FOR AIR BAG MODULE (OUTSIDE OF VEHICLE)
Unless the vehicle is being scrapped, deploying the air bag in the
vehicle is not recommended. This may cause damage to the vehicle
interior.
Anchor air bag module bracket (SST:KV99105300) in a vise secured
to a firm foundation during deployment.
Deployment of Driver Air Bag Module (Outside of vehicle)
1. Using wire, secure air bag module to air bag module bracket
(SST: KV99105300) at two places.
CAUTION:
Use wire of at least 1 mm (0.04 in) diameter.
2. Firmly secure air bag module bracket (SST:KV99105300) with
air bag module attached in a vise.
3. Connect deployment tool adapter (KV99109700) to deployment
tool (SST: KV99106400 (J38381)] to air bag module connector.
4. Connect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
Switch operationLeft side lamp, green*
“AIR BAG CONNECTOR
VOLTAGE”Right side lamp, green*
“DEPLOYMENT TOOL
POWER”
OFF OFF ON
ON ON ON
SRS005-B
SRS233-D
PHIA0004E
SRS235-D

SRS-42
DISPOSAL OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER
5. The lamp on the right side of the tool, marked “deployment tool power”, should glow green, not red.
6. Press the button on the deployment tool. The left side lamp on the tool, marked “air bag connector volt-
age”, will illuminate and the air bag module will deploy.
CAUTION:
When deploying the driver air bag module, stand at least 5 m (16 ft) away from the air bag module.
Deployment of front passenger air bag Module (Outside of vehicle)
1. Make an 8.5 mm (0.335 in) diameter hole in air bag module
bracket (SST: KV99105300)at the position shown in figure at
right.
2. Firmly secure air bag module bracket (SST:KV99105300) in a
vise.
3. Match the two holes in air bag module bracket (held in vise) and
front passenger air bag module and fix them with two bolts [M8´
25 - 30 mm (0.98 - 1.18 in)].
CAUTION:
If a gap exists between front passenger air bag module and
air bag module bracket, use a piece of wood inserted in the
gap to stabilize the air bag module.
4. Connect deployment tool adapter (KV99108300) to deployment
tool (SST: KV99106400) connector and front passenger air bag
module connector.
5. Connect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
6. The lamp on the right side of the tool, marked “deployment tool
power”, should glow green, not red.
7. Press the button on the deployment tool. The left side lamp on
the tool, marked “air bag connector voltage”, will illuminate and
the air bag module will deploy.
CAUTION:
lWhen deploying the front passenger air bag module, do not
stand on the deploying side.
lStand at least 5 m (16 ft) away from the air bag module.
PHIA0033E
PHIA0032E
PHIA0038E
SRS020-A

DISPOSAL OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER
SRS-43
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SRS
Deployment of front Side air bag module (Outside of vehicle)
1. Make 6.5 mm (0.256 in) diameter holes in air bag module
bracket (SST: KV99105300)at the position shown in figure at
left.
2. Firmly secure air bag module bracket (SST: KV99105300) in a
vise.
3. Insert the stud bolts of side air bag module into the two holes in
air bag module bracket (held in vise) and fix them with two M6
nuts.
CAUTION:
Side air bag module should be secured to air bag module
bracket (SST: KV99105300) in a vise with stud bolt side set-
ting bottom.
4. Connect deployment tool adapter (SST: KV99109000) to
deployment tool (SST: KV99106400) connector and connector
on air bag module.
5. Connect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
6. The lamp on the right side of the tool, marked “deployment tool
power”, should glow green, not red.
7. Press the button on the deployment tool. The left side lamp on
the tool, marked “air bag connector voltage”, will illuminate and
the air bag module will deploy.
CAUTION:
When deploying the front side air bag module, stand at
least 5 m (16 ft) away from the air bag module.
SRS490-C
SRS628-B
SRS629
SRS020-A

SRS-44
DISPOSAL OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER
DEPLOYMENT PROCEDURES FOR SEAT BELT PRE-TENSIONER (OUTSIDE OF VEHICLE)
1. Firmly grip pre-tensioner in a vise.
2. Cut the webbing off.
3. Connect deployment tool adapter (SST: KV99108200) to
deployment tool (SST: KV99106400)connector and front seat
belt pre-tensioner connector.
4. Connect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
5. The lamp on the right side of the tool, marked “deployment tool
power”, should glow green, not red.
6. Press the button on the deployment tool. The left side lamp on
the tool, marked “seat belt pre-tensioner connector voltage”, will
illuminate and the seat belt pre-tensioner will deploy.
CAUTION:
When deploying the front seat belt pre-tensioner, stand at least 5 m (16 ft) away from the seat belt
pre-tensioner.
DEPLOYMENT OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER WHILE MOUNTED IN
VEHICLE
When disposing of a vehicle, deploy air bag module and seat belt pre-tensioners while they are mounted in
vehicle.
CAUTION:
When deploying air bag module or seat belt pre-tensioner, ensure vehicle is empty.
1. Disconnect both the vehicle battery cables and wait 3 minutes.
2. Disconnect air bag module and seat belt pre-tensioner connector.
3. Connect deployment tool (SST: KV99106400 )] to air bag module or seat belt pre-tensioner.
For driver air bag module, attach deployment tool adapter (SST: KV99109700) to the tool connector.
For front passenger air bag module, attach deployment tool adapter(SST:KV99108300 )to the tool con-
nector.
For side air bag module, attach deployment tool adapter (SST: KV99109000) to the tool connector.
For seat belt pre-tensioner, attach deployment tool adapter (SST: KV99108200)to the tool connector.
PHIA0034E
PHIA0035E
PHIA0036E

DISPOSAL OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER
SRS-45
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SRS
4. Connect red clip of deployment tool to battery positive terminal
and black clip to negative terminal.
5. The lamp on the right side of the tool, marked “deployment tool
power”, should glow green, not red.
6. Press the button on the deployment tool. The left side lamp on
the tool, marked “air bag connector voltage”, will illuminate and
the air bag module or seat belt pre-tensioner will deploy.
CAUTION:
Activate only one air bag module or seat belt pre-tensioner
at a time.
DISPOSING OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER
Deployed air bag module and seat belt pre-tensioner are very hot. Before disposing of air bag module, and
seat belt pre-tensioner wait at least 30 minutes, and 10 minutes, respectively. Seal them in a plastic bag
before disposal.
CAUTION:
lNever apply water to a deployed air bag module and seat
belt pre-tensioner.
lBe sure to wear gloves when handling a deployed air bag
module and seat belt pre-tensioner.
lNo poisonous gas is produced upon air bag module
deployment. However, be careful not to inhale gas since it
irritates throat and can cause choking.
lDo not attempt to disassemble air bag module and seat belt
pre-tensioner.
lAir bag module and seat belt pre-tensioner cannot be
reused.
lWash your hands clean after finishing work.
SRS006
SBF276H

SRS-46
COLLISION DIAGNOSIS
COLLISION DIAGNOSIS
PFP:00015
For Frontal CollisionEHS000DF
To repair the SRS, perform the following steps.
WHEN SRS (EXCEPT THE FRONT SIDE AIR BAG ) IS ACTIVED IN A COLLISION :
1. Replace the diagnosis sensor unit.
2. Remove the air bag modules (except the front side air bag module), bracket and seat belt pre-tensioner
assemblies.
3. Check the SRS components using the table shown below:
–Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
4. Install new air bag modules (except the front side air bag module ) and seat belt pre-tensioner assemblies.
5. Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer toSRS-15, "
SRS Operation
Check"for details. Ensure entire SRS operation properly.
WHEN SRS IS NOT ACTIVATED IN A COLLISION:
1. Check the SRS components using the table shown below:
–Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
2. Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer toSRS-15, "
SRS Operation
Check"for details. Ensure entire SRS operation properly.
SRS INSPECTION (FOR FRONTAL COLLISION)
Part SRS is activated SRS is NOT activated
Air bag module
(driver and front pas-
senger air bag mod-
ule)REPLACE
Install with new bolts.1. Remove air bag module. Check harness cover and connectors for damage, termi-
nals for deformities, and harness for binding.
2.
–Install driver air bag module into the steering wheel to check fit and alignment with
the wheel.
–Install passenger air bag module into the instrument panel to check fit with the
instrument panel.
3. No damage found, reinstall with new bolts.
4. If damaged—REPLACE. Install air bag modules with new special bolts
Air bag must be deployed before discarding.
Seat belt pre-ten-
sioner assemblyREPLACE
Install seat belt pre-
tensioner with new
bolts.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. If no damage is found, reinstall seat belt pre-tensioner assembly.
5. If damaged—REPLACE. Install the seat belt pre-tensioners with new bolts.
Seat belt pre-tensioners must be deployed before discarding.
Diagnosis sensor unit REPLACE
Install with new bolts.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 bolts and ground bolt.
4. If damaged—REPLACE. Install diagnosis sensor unit with new bolts and ground
bolt.
Steering wheel 1. Visually check steering wheel for deformities.
2. Check harness (built into steering wheel) and connectors for damage, and terminals for deformities.
3. Install air bag module to check fit or alignment with steering wheel.
4. Check steering wheel for excessive free play.
5. If no damage is found, reinstall with bolts.
6. If damaged—REPLACE.

COLLISION DIAGNOSIS
SRS-47
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SRS
For Side CollisionEHS000DG
WHENTHESIDEAIRBAGISACTIVATEDINTHESIDECOLLISION:
1. Replace the following component:
–All parts of front seat back (including front seat back frame) with front side air bag module (on the side on
which front side air bag is activated)
–Diagnosis sensor unit
–Side air bag (satellite) sensor
2. Check the SRS components and the related parts using the table shown below.
–Replace any SRS components and the related parts showing visible signs of damage (dents, cracks,
deformation).
3. Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer toSRS-15, "
SRS Operation
Check". Ensure entire SRS operation properly.
WHEN SRS IS NOT ACTIVATED IN THE SIDE COLLISION:
1. Check the SRS components and the related parts using the table shown below.
–Replace any SRS components and the related parts showing visible signs of damage (dents, cracks,
deformation).
2. Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer toSRS-15, "
SRS Operation
Check". Ensure entire SRS operation properly.
Spiral cable 1. Visually check spiral cable and combination switch for damage.
2. Check connectors and protective tape for damage.
3. Check steering wheel for noise, binding or heavy operation.
4. If no damage is found, reinstall with bolts.
5. If damaged—REPLACE.
Harness and Connec-
tors1. Check connectors for poor connection, damage, and terminals for deformities.
2. Check harness for binding, chafing, cuts, or deformities.
3. If no damage is found, reinstall the harness and connectors.
4. Damaged—REPLACE damaged section of harness. Do not attempt to repair, splice or modify any SRS
harness.
Instrument panel 1. Visually check instrumental panel for damage.
2. If no damage is found, reinstall the instrument panel.
3. If damaged—REPLACE the instrument panel with bolts. Part SRS is activated SRS is NOT activated

SRS-48
COLLISION DIAGNOSIS
SRS INSPCTION (FOR SIDE COLLISION)
PartFront side air bag and
side curtain air bag is
activatedFront side air bag and side curtain air bag is NOT activated
Front (LH or RH) side
air bag moduleREPLACE all parts of
seat back with
deployed front side
air bag module.1. Check for visible signs of damage (dents, tears, deformation) of the seat back on
the collision side.
2. If damaged—REPLACE the damaged seat parts with new bolts and remove the
front side air bag module.
3. Check for visible signs of damaged (tears etc.) of the front side air bag module.
4. Check harness and connectors for damage, and terminals for deformities.
5. If no damaged is found, reinstall the front side air bag module with new nuts.
6. If damaged—REPLACE the front side air bag module with new nut.
Air bag must be deployed before disposing of it.
(LH or RH) side air
bag (satellite) sensorREPLACE the side
air bag (satellite)
sensor on the colli-
sion side with new
nuts.
(Repair the center pil-
lar inner, etc. before
installing new one if
damaged.)1. Remove the side air bag (satellite) sensor on the collision side. Check harness
connectors for damage, terminals for deformities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the side air bag
(satellite) sensor.
3. Install the side air bag (satellite) sensor to check fit.
4. If no damage is found, reinstall the side sir bag (satellite) sensor with new nuts.
5. If damaged—REPLACE the side air bag (satellite) sensor with new nuts.
Diagnosis sensor unit REPLACE the diag-
nosis sensor unit with
the new bolts.1. Check case and bracket for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall the diagnosis sensor unit with new bolts and
ground bolt.
4. If damaged—REPLACE the diagnosis sensor unit with new bolts and ground bolt.
Seat belt pre-ten-
sioner assembly1. Check if the seat belt can be extended smoothly.
If the seat belt cannot be extended smoothly,
–Check for deformities of the center pillar inner.
–If the center pillar inner has no damage, REPLACE the seat belt pre-tensioner assembly.
2. Remove the seat belt pre-tensioner assembly on the collision side. Check harness cover and connectors
for damage, terminals for deformities, and harness for binding.
3. Check for visible signs of damage (dents, cracks, deformation) of the seat belt pre-tensioner assembly.
4. If no damage is found, reinstall the seat belt pre-tensioner assembly.
5. If damaged—REPLACE the seat belt pre-tensioner assembly with new bolts.
The seat belt pre-tensioner assembly must be deployed before disposing of it.
Seat with front side
air bagREPLACE all parts of
front seat back
(including front seat
back frame)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 with new bolts.
Center pillar inner 1. Check the center pillar inner on the collision side for damage (dents, cracks, deformation).
2. If damaged—REPAIR the center pillar inner.
Trim 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.