sensor NISSAN X-TRAIL 2003 Service Repair Manual

PS-38
HYDRAULIC LINE

REMOVAL AND INSTALLATION

Insert hose securely until it contacts tube spool.
CAUTION:
Do not apply fluid.

Install eye-bolt with eye-joint (assembled to high-pressure hose)
protrusion facing with pump side cutout, and then tighten it to
the specified torque after tightening by hand.
1. Reservoir tank 2. Suction hose 3. High-pressure hose
4. Oil pump assembly 5. Steering gear assembly 6. Pressure sensor
7. O-ring 8. Copper washer 9. Eye-joint (assembled to high-pres-
sure side hose)
10. Eye-bolt
SGIA0514E
SGIA0854E

HYDRAULIC LINE
PS-39
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PS

Components (YD22DDTi engine model)EGS00168
CAUTION:
Securely insert harness connector to oil pressure sensor.
YD22DDTi LH MODEL
SGIA0948E
1. Reservoir tank 2. Suction hose 3. High pressure hose
4. Oil pump assembly 5. Steering gear assembly 6. Pressure sensor

PS-40
HYDRAULIC LINE

YD22DDTi RH MODEL
7. O-ring 8. Copper washer 9. Eye-joint (assembled to high-pres-
sure side hose
10. Eye-bolt
SGIA0949E
1. Reservoir tank 2. Suction hose 3. High pressure hose
4. Oil pump assembly 5. Steering gear assembly 6. Pressure sensor

SB-22
SEAT BELT WARNING SYSTEM

Seat Belt Buckle Switch and Seat Pressure Switch CheckEHS000GX
1. CHECK TIME CONTROL UNIT INPUT SIGNAL
1. Turn ignition switch “ON”.
2. Check voltage between time control unit connector M31 terminal
22 (G/OR) and ground.
NOTE:
When performing the following procedure, a person is sitting on the
passenger side seat. (As a result, the seat pressure sensor is turned
ON.)
OK or NG
OK >> Seat belt buckle switch (passenger side) is OK.
NG >> GO TO 2.
2. CHECK SEAT BELT BACKLE SWITCH CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch “OFF”.
2. Disconnect time control unit connector and seat belt buckle
switch (passenger side) connector.
3. Check the following.
with power seat
–Check continuity between time control unit connector M31 termi-
nal 22 (G/OR) and seat belt buckle switch (passenger side) con-
nector B352 terminal 13 (R).
–Check continuity between time control unit connector M31 termi-
nal 22 (G/OR) and ground.
without power seat
–Check continuity between time control unit connector M31 termi-
nal 22 (G/OR) and seat belt buckle switch (passenger side) con-
nector B113 terminal 1 (G/OR).
–Check continuity between time control unit connector M31 termi-
nal 22 (G/OR) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between time control unit and seat belt buckle switch.
Terminal
(wire color)
Condition Voltage (V)
(+) (–)
22 (G/OR) GroundPassenger side seat belt buckle
switch Fasten and seat pressure
switch ON.Battery voltage
Passenger side seat belt buckle
switch Unfasten and seat pres-
sure switch OFF.0
PHIA0630E
22 (G/OR) – 13 (R) : Continuity should exist.
22 (G/OR) – Ground : Continuity should not exist.
22 (G/OR) – 1 (G/OR) : Continuity should exist.
22 (G/OR) – Ground : Continuity should not exist.
PHIA0631E

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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SECTION
A
B
SRS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for SRS “AIR BAG” and “SEAT BELT
PRE-TENSIONER” Service ..................................... 3
Wiring Diagrams and Trouble Diagnosis .................. 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 5
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ....... 6
SRS Configuration ................................................... 6
Front Seat Belt Pre-tensioner with Load Limiter ...... 6
Front Side Air Bag .................................................... 7
TROUBLE DIAGNOSIS .............................................. 8
Trouble Diagnosis Introduction ................................. 8
DIAGNOSIS FUNCTION ....................................... 8
HOW TO PERFORM TROUBLE DIAGNOSES
FOR QUICK AND ACCURATE REPAIR ............... 8
WORK FLOW ........................................................ 9
Component Parts Location ..................................... 10
Wiring Diagram — SRS — /LHD models ................ 11
Wiring Diagram — SRS — /RHD models .............. 13
CONSULT-II Function ............................................ 15
DIAGNOSIS MODE FOR CONSULT-II ............... 15
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-II .............................................. 15
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 16
Self-Diagnosis Function (Without CONSULT-II) ..... 16
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITHOUT CONSULT-II ...................................... 16
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 16
SRS Operation Check ............................................ 17
DIAGNOSTIC PROCEDURE 1 ........................... 17
Trouble Diagnosis with CONSULT–II ..................... 19
DIAGNOSTIC PROCEDURE 2 ........................... 19
DIAGNOSTIC PROCEDURE 3 ........................... 21
Diagnostic Code Chart ........................................... 22
Trouble Diagnosis without CONSULT-II ................. 24
DIAGNOSTIC PROCEDURE 4 ........................... 24WARNING LAMP FLASH CODE CHART ........... 25
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn Off ............................................................ 28
DIAGNOSTIC PROCEDURE 5 ........................... 28
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn On ............................................................ 29
DIAGNOSTIC PROCEDURE 6 ........................... 29
DRIVER AIR BAG MODULE .................................... 30
Removal and Installation ........................................ 30
REMOVAL ........................................................... 30
INSTALLATION ................................................... 31
SPIRAL CABLE ........................................................ 33
Removal and Installation ........................................ 33
REMOVAL ........................................................... 33
INSTALLATION ................................................... 34
FRONT PASSENGER AIR BAG MODULE .............. 35
Removal and Installation ........................................ 35
REMOVAL ........................................................... 35
INSTALLATION ................................................... 36
FRONT SIDE AIR BAG MODULE ............................ 37
Removal and Installation ........................................ 37
REMOVAL ........................................................... 37
INSTALLATION ................................................... 38
SIDE AIR BAG (SATELLITE) SENSOR ................... 39
Removal and Installation ........................................ 39
REMOVAL ........................................................... 39
INSTALLATION ................................................... 39
FRONT SEAT BELT PRE-TENSIONER ................... 40
Removal and Installation ........................................ 40
DIAGNOSIS SENSOR UNIT ..................................... 41
Removal and Installation ........................................ 41
REMOVAL ........................................................... 41
INSTALLATION ................................................... 41
ECU DISCRIMINATED NO. ................................ 41
DISPOSAL OF AIR BAG MODULE AND SEAT BELT
PRE-TENSIONER ..................................................... 42
Caution for Air Bag Module and Seat Belt Pre-ten-
sioner ...................................................................... 42
CHECKING DEPLOYMENT TOOL ..................... 42
DEPLOYMENT PROCEDURES FOR AIR BAG

PRECAUTIONS
SRS-3
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SRS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EHS001B0
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” ServiceEHS000BH

Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.

Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.

Diagnosis sensor unit must always be installed with their arrow marks “⇐” pointing towards the front of the
vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before instal-
lation and replace as required.

The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.

Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad
side facing upward and place front side air bag module standing with stud bolt side setting bottom.

Conduct self-diagnosis to check entire SRS for proper function after replacing any components.

After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Wiring Diagrams and Trouble DiagnosisEHS001NG
When you read wiring diagrams, refer to the following:

GI-14, "How to Read Wiring Diagrams" in GI section

PG-2, "POWER SUPPLY ROUTING" in PG section
When you perform trouble diagnosis, refer to the following:

GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section

GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section
Check for any service bulletins before servicing the vehicle.

SRS-6
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)PFP:28556
SRS ConfigurationEHS000CH
The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in the ON or START posi-
tion.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module and front passenger air bag module are activated in a frontal col-
lision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows;
Front Seat Belt Pre-tensioner with Load LimiterEHS000CI
The seat belt pre-tensioner system with load limiter is installed to
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a frontal
collision with an impact exceeding a specified level.
When the frontal collision with an impact exceeding a specified level
occurs, seat belt slack resulting from clothing or other factors is
immediately taken up by the pre-tensioner. Vehicle passengers are
securely restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the chest-area seat belt
web tension while maintaining force.
PHIA0037E
SRS configuration Frontal collision Left side collision Right side collision
Driver air bag module×——
Front passenger air bag module×——
Front LH seat belt pre-tensioner×——
Front RH seat belt pre-tensioner×——
Front LH side air bag module —×—
Front RH side air bag module — —×
SRS444

TROUBLE DIAGNOSIS
SRS-15
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SRS

CONSULT-II FunctionEHS000O6
DIAGNOSIS MODE FOR CONSULT-II

“SELF-DIAG [CURRENT]”
A current Self-diagnosis result (also indicated by the number of warning lamp flashes in the Diagnosis
mode) is displayed on the CONSULT-II screen in real time. This refers to a malfunctioning part requiring
repairs.

“SELF-DIAG [PAST]”
Diagnosis results previously stored in the memory are displayed on the CONSULT-II screen. The stored
results are not erased until memory erasing is executed.

“TROUBLE DIAG RECORD”
With TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be dis-
played on the CONSULT-II screen.

“ECU DISCRIMINATED NO.”
The diagnosis sensor unit for each vehicle model is assigned
with its own, individual classification number. This number will
be displayed on the CONSULT-II screen, as shown. When
replacing the diagnosis sensor unit, refer to the part number for
the compatibility. After installation, replacement with a correct
unit can be checked by confirming this classification number on
the CONSULT-II screen.
After repair, make sure the discriminated number of diagnosis
sensor unit installed to vehicle are same. Refer to SRS-41,
"ECU DISCRIMINATED NO." .
HOW TO CHANGE SELF-DIAGNOSIS MODE WITH CONSULT-II
From User Mode to Diagnosis Mode
After selecting “AIR BAG” on the “SELECT SYSTEM” screen, User mode automatically changes to Diagnosis
mode.
From Diagnosis Mode to User Mode
To return to User mode from Diagnosis mode, touch “BACK” key of CONSULT-II until “SELECT SYSTEM”
appears, then diagnosis mode automatically changes to User mode.
PHIA0218E
SRS803
SRS804

SRS-18
TROUBLE DIAGNOSIS

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-19, "DIAGNOSTIC
PROCEDURE 2" or SRS-28,
"DIAGNOSTIC PROCEDURE 5" .

Air bag is deployed.

Seat belt pre-tensioner is deployed.Go to SRS-48, "
COLLISION DIAG-
NOSIS" .

Diagnosis sensor unit is malfunction-
ing.

Air bag power supply circuit is mal-
functioning.

SRS air bag warning lamp circuit is
malfunctioning.Go to SRS-28, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Turn Off" .

Diagnosis sensor unit is malfunction-
ing.

Air bag warning lamp circuit is mal-
functioning.Go to SRS-29, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Turn On" .
SHIA0011E
SHIA0012E
SHIA0013E
SHIA0014E

SRS-20
TROUBLE DIAGNOSIS

a. Touch “SELF-DIAG [CURRENT]”.

Diagnostic code is displayed on “SELF-DIAG [CURRENT]”.
i. If the malfunction is displayed in the “SRS Operation Check” (Air bag warning lamp blinking) but no mal-
function is displayed in the “SELF-DIAG [CURRENT]”, the following possibilities shall be checked. Refer
to SRS-21, "
DIAGNOSTIC PROCEDURE 3" .

Low battery voltage (Less than 9 V)

After the malfunction part is repaired, the diagnosis results in “SELF-DIAG [PAST]” has not been
erased.

An intermittent malfunction has been stored in the past.
NOTE:
Intermittent malfunction is a malfunction that has occurred once in the past, but soon recovered.
b. Touch “SELF-DIAG [PAST]”.

The diagnostic code is displayed until erasing the memory in
the “SELF-DIAG [CURRENT]”.
c. Touch “TROUBLE DIAG RECORD”.

The diagnosis results (malfunction parts stored in the diagno-
sis sensor unit) stored in the self-diagnosis results are dis-
played.

The memory of “TROUBLE DIAG RECORD” cannot be
erased.
7. Each diagnostic code is displayed. Refer to SRS-22, "
Diagnostic
Code Chart" .
8. Touch “PRINT”, if required.
9. Based on each diagnosis result, repair or replace the malfunc-
tion parts.
CAUTION:
Be sure to start the work after the following steps. Turn the
ignition switch OFF, and disconnect both battery cables.
Then wait for at least 3 minutes.
SHIA0203E
SHIA0181E
SHIA0182E
SHIA0180E