SRS NISSAN NAVARA 2005 Repair Manual PDF

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS-7
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SRS
Front Seat Belt Pre-Tensioner with Load LimiterEHS001XB
The seat belt pre-tensioner system with load limiter is installed for
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.
Front Side Air BagEHS001XC
Front side air bag modules are built into the front seatback assemblies.
Vehicles with side air bags are equipped with labels as shown.
Side Curtain Air BagEHS001XD
Side curtain air bag modules are located above the vehicle headlining.
Vehicles with side curtain air bags are equipped with labels as
shown.
WHIA0225E
WHIA0008E
WHIA0041E

SRS-8
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Direct-Connect SRS Component Connectors
EHS001XF
The following SRS components use direct-connect style harness connectors.
lDriver air bag module
lFront passenger air bag module
lLH side front curtain air bag module
lLH side rear curtain air bag module
lRH side front curtain air bag module
lRH side rear curtain air bag module
lFront LH seat belt pre-tensioner
lFront RH seat belt pre-tensioner
Always pull up to release black locking tab prior to removing connector from SRS component.
Always push down to lock black locking tab after installing connector
to SRS component. When locked, the black locking tab is level with
the connector housing.
WHIA0103E

TROUBLE DIAGNOSIS
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SRS
TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionEHS001XG
CAUTION:
lDo not use electrical test equipment on any circuit related to the SRS unless instructed to do so in
this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harness con-
nectors.
lDo not attempt to repair, splice or modify SRS wiring harnesses. If a harness is damaged, replace
it with a new one.
lKeep ground connections clean.
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using “AIR BAG” warning lamp and/or CONSULT-II.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system mal-
function through the operation of the “AIR BAG” warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the “AIR BAG” warning lamp and CONSULT-II are as follows:
HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Information From Customer
WHAT - Vehicle model
WHEN - Date, Frequencies
WHERE - Road conditions
HOW - Operating conditions, Symptoms
Preliminary Check
Check that the following parts are in good order.
lBattery (Refer toSC-5, "How to Handle Battery".)
lFuse (Refer toSRS-13, "Wiring Diagram–SRS–".)
lSystem component-to-harness connections
User mode Diagnosis mode Display type
“AIR BAG” warning lamp X X ON-OFF operation
CONSULT-II — X Monitoring

SRS-10
TROUBLE DIAGNOSIS
WORK FLOW
*1:SRS-9*2:SRS-18*3:SRS-26
*4:SRS-30
WHIA0098E

TROUBLE DIAGNOSIS
SRS-11
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SRS
SRS Components Parts LocationEHS001XH
1. Side curtain air bag module (LH/RH) 2. Front RH side air bag module 3. RH side air bag (satellite) sensor
4. Front RH seatbelt pre-tensioner 5. Front passenger air bag module 6. Air bag warning lamp
7. Spiral cable 8. Driver air bag module 9. Front LH seatbelt pre-tensioner
10. LH side air bag (satellite) sensor 11. Front LH side Air bag module 12. Air bag diagnosis sensor unit
MHIB0113E

SRS-12
TROUBLE DIAGNOSIS
Schematic
EHS001XI
MHWA0048E

TROUBLE DIAGNOSIS
SRS-13
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SRS
Wiring Diagram–SRS–EHS001XJ
MHWA0049E

SRS-14
TROUBLE DIAGNOSIS
MHWA0050E

TROUBLE DIAGNOSIS
SRS-15
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SRS
MHWA0051E

SRS-16
TROUBLE DIAGNOSIS
CONSULT-II Function (AIR BAG)
EHS001XK
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II FunctionEHS001XL
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, Diagnosis mode automatically changes to User mode.
AIR BAG diagnostic mode Description
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 requir-
ing repairs.
SELF-DIAG [PAST]Diagnosis results previously stored in the memory are displayed on the CONSULT-II screen. The
stored results will remain until memory erasing is executed.
TROUBLE DIAG RECORDWith TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be dis-
played on the CONSULT-II screen.
ECU DISCRIMINATED NO.The air bag diagnosis sensor unit for each vehicle
model is assigned with its own, individual classifi-
cation number. This number will be displayed on
the CONSULT-II screen, as shown. When replac-
ing the air bag 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 CON-
SULT-II screen.
For NISSAN MODEL R51, the air bag diagnosis
sensor unit discriminated numbers assigned
are A937 (for models with side and side front
curtain air bags) and A939 (for models without
side and side front curtain air bags).
ARS366
SRS803
SRS804