Nissan Pathfinder (2009 year). Instruction — part 600
SRC-6
< FUNCTION DIAGNOSIS >
SRS AIR BAG SYSTEM
FUNCTION DIAGNOSIS
SRS AIR BAG SYSTEM
SRS Configuration
INFOID:0000000003937569
The air bag deploys if the air bag diagnosis sensor unit is activated while the ignition switch is in the ON or
START position.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module, front passenger air bag module and front seat belt pre-tension-
ers are activated in a frontal collision but not in a side collision.
SRS configurations for some collision modes are as follows:
AWHIA0235GB
SRS configuration
Frontal collision
Left side collision
Right side colli-
sion
Rollover
Driver air bag module
x
—
—
—
Front passenger air bag module
x
—
—
—
Front LH seat belt pre-tensioner
x
—
—
x
Front RH seat belt pre-tensioner
x
—
—
x
Front LH side air bag module
—
x
—
—
Front RH side air bag module
—
—
x
—
LH side curtain air bag module
—
x
—
x
RH side curtain air bag module
—
—
x
x
2009 Pathfinder
SRS AIR BAG SYSTEM
SRC-7
< FUNCTION DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
SRS Component Parts Location
INFOID:0000000003937570
Driver Air Bag Module
INFOID:0000000003937571
The driver air bag module is dual stage and located in the steering
wheel assembly. It operates with the SRS system in a frontal colli-
sion exceeding a specified level.
1.
Side curtain air bag modules
2.
Front RH side air bag module
3.
Front RH seat belt pre-tensioner
4.
Belt tension sensor
5.
Seat belt buckle switch RH
6.
RH side air bag (satellite) sensor
7.
Occupant classification system sen-
sor
8.
Occupant classification system
control unit
9.
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
WHIA0196E
WHIA0325E
2009 Pathfinder
SRS AIR BAG SYSTEM
SRC-9
< FUNCTION DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
Direct-connect SRS Component Connectors
INFOID:0000000003937576
The following SRS components use direct-connect style harness connectors.
• Driver air bag module
• Front passenger air bag module
• LH side front curtain air bag module
• LH side rear curtain air bag module
• RH side front curtain air bag module
• RH side rear curtain air bag module
• Front LH seat belt pre-tensioner
• Front RH seat belt pre-tensioner
Always pull up to release locking tab prior to removing connector from SRS component.
Always push down to lock locking tab after installing connector to
SRS component. When locked, the locking tab is level with the con-
nector housing.
WHIA0103E
2009 Pathfinder
SRC-10
< FUNCTION DIAGNOSIS >
OCCUPANT CLASSIFICATION SYSTEM
OCCUPANT CLASSIFICATION SYSTEM
System Diagram
INFOID:0000000003937577
Occupant Classification System (OCS)
INFOID:0000000003937578
The occupant classification system (OCS) identifies different size occupants, out of position occupants, and
detects if child seat is present in the front passenger seat. The OCS receives inputs from the occupant classi-
fication sensor (located inside the passenger seat cushion assembly) and belt tension sensor (part of the pas-
senger front seat belt assembly and located at the belt anchor location). Depending on classification of the
passenger, the OCS sends a signal to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit
uses this signal and the seat belt buckle switch RH signal to determine deployment or non deployment of the
passenger front air bag in the event of a collision. Depending on the signals received, the air bag diagnosis
sensor unit can disable the passenger front air bag completely.
NOTE:
In case of customer concern, CONSULT-III can be used to confirm the passenger air bag status (readiness).
Passenger Air Bag Status Conditions
NOTE:
ALHIA0042GB
Front Passenger Seat
(Condition)
PASS AIR BAG OFF Indicator
(Status)
Passenger Air Bag Status
(Readiness)
CONSULT-III Display
Seat occupied
OFF
Active (enabled)
ON
Seat occupied
NOTE
ON
Deactivated (disabled)
OFF
Seat empty
OFF
Deactivated (disabled)
OFF
2009 Pathfinder
OCCUPANT CLASSIFICATION SYSTEM
SRC-11
< FUNCTION DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
Passenger does not meet Occupant Classification System specifications for passenger air bag activation.
WHIA0195E
2009 Pathfinder
SRC-12
< FUNCTION DIAGNOSIS >
PASSENGER SEAT BELT WARNING SYSTEM
PASSENGER SEAT BELT WARNING SYSTEM
System Diagram
INFOID:0000000003937579
System Description
INFOID:0000000003937580
The passenger seat belt warning system will remind the driver if the
driver or front passenger seat belt should be buckled by turning on
the seat belt warning light (1). The system works in conjunction with
the occupant classification system. Refer to
Passenger Seat Belt Warning System Operation
Component Parts Location
INFOID:0000000003937581
SRC-7, "SRS Component Parts Location"
ALHIA0028GB
ALHIA0043ZZ
Driver seat status
(Ignition switch ON)
Passenger seat status
Seat belt buckle switch
LH status
Seat belt buckle switch
RH status
Seat belt warning lamp
Seat occupied
Seat occupied
Buckled
Buckled
Off
Unbuckled
On
Seat unoccupied
—
Off
—
Unbuckled
On
2009 Pathfinder
ON BOARD DIAGNOSTIC (OBD) SYSTEM
SRC-13
< FUNCTION DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Trouble Diagnosis Introduction
INFOID:0000000003937582
CAUTION:
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to do so in
this Instruction. SRS wiring harnesses can be identified by yellow and/or orange harness con-
nectors.
• Do not attempt to repair, splice or modify SRS wiring harnesses. If a harness is damaged, replace it
with a new one.
• Keep ground connections clean.
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using “AIR BAG” warning lamp and/or CONSULT-III.
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-III 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.
• Battery
• Fuses
• System component-to-harness connections
SRS Operation Check
INFOID:0000000003937583
DIAGNOSTIC PROCEDURE 1
Checking SRS Operation Using “AIR BAG” Warning Lamp—User Mode
1.
Turn the ignition switch from OFF to ON, and check that the air bag warning lamp blinks.
2.
Compare the SRS air bag warning lamp blinking pattern with the
examples.
User mode
Diagnosis mode
Display type
“AIR BAG” warning lamp
X
X
ON-OFF operation
CONSULT-III
—
X
Monitoring
BF-1845D
2009 Pathfinder
SRC-14
< FUNCTION DIAGNOSIS >
ON BOARD DIAGNOSTIC (OBD) SYSTEM
SRS Air bag warning lamp examples
DIAGNOSTIC PROCEDURE 2
1.
Connect CONSULT-III.
2.
Diagnostic code is displayed on "SELF-DIAG [CURRENT]".
If no malfunction is detected on "SELF-DIAG [CURRENT]", but malfunction is detected in "SRS Operation
Check" using the "AIR BAG" warning lamp, the following cases may exist:
• "SELF-DIAG [PAST]" memory might not be erased.
• The SRS system malfunctions intermittently.
Perform DIAGNOSTIC PROCEDURE 4. Refer to
SRC-15, "Self-Diagnosis Function (Without CONSULT-
“AIR BAG” warning lamp (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 DIAGNOSTIC PROCEDURE
2 that follows (with CONSULT-III) or
SRC-15, "Trouble Diagnosis without
CONSULT-III"
(without CONSULT-
III).
• Air bag is deployed.
• Seat belt pre-tensioner is deployed.
Go to COLLISION DIAGNOSIS
"For Side and Rollover Collision"
.
• 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
.
• Air bag diagnosis sensor unit is mal-
functioning.
• Air bag warning lamp circuit is mal-
functioning.
Go to
.
SHIA0011E
SHIA0012E
SHIA0013E
SHIA0014E
2009 Pathfinder
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст