Nissan Frontier D22. Manual — part 138
BCS-1
BODY CONTROL SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION
A
B
BCS
PRECAUTIONS . . . . . . . . . . . . . . .. 2
PREPARATION . . . . . . . . . . . . . . ... 3
Special Service Tools . . . . . . . . . . . ... 3
SMART ENTRANCE CONTROL UNIT . . . . . .. 4
Description . . . . . . . . . . . . . . . . 4
Circuit Diagram . . . . . . . . . . . . . . . 5
Smart Entrance Control Unit Inspection Table . . .. 7
WARNING CHIME . . . . . . . . . . . . . ... 9
Description . . . . . . . . . . . . . . . . 9
Circuit Diagram . . . . . . . . . . . . . ... 10
Warning Chime Unit Inspection Table . . . . . 11
BCS-2
PRECAUTIONS
PRECAUTIONS
PFP:00001
Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER”
EKS006WV
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. This system may include seat belt switch inputs and dual stage front air bag modules. If
equipped with dual stage front air bag modules, the SRS system uses the seat belt switches to determine the
front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and
whether the front occupants are belted or unbelted. Information necessary to service the system safely is
included in the SRS and SB section of this Service Manual.
The vehicle may be equipped with a passenger air bag deactivation switch. Because no rear seat exists where
a rear-facing child restraint can be placed, the switch is designed to turn off the passenger air bag so that a
rear-facing child restraint can be used in the front passenger seat. The switch is located in the center of the
instrument panel, near the ashtray. When the switch is turned to the ON position, the passenger air bag is
enabled and could inflate for certain types of collision. When the switch is turned to the OFF position, the pas-
senger air bag is disabled and will not inflate. A passenger air bag OFF indicator on the instrument panel lights
up when the passenger air bag is switched OFF. The driver air bag always remains enabled and is not affected
by the passenger air bag deactivation switch.
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 harness connec-
tors.
●
The vehicle may be equipped with a passenger air bag deactivation switch which can be operated
by the customer. When the passenger air bag is switched OFF, the passenger air bag is disabled
and will not inflate. When the passenger air bag is switched ON, the passenger air bag is enabled
and could inflate for certain types of collision. After SRS maintenance or repair, make sure the
passenger air bag deactivation switch is in the same position (ON or OFF) as when the vehicle
arrived for service.
Wiring Diagrams and Trouble Diagnosis
EKS006WW
When you read wiring diagrams, refer to the following:
●
GI-13, "How to Read Wiring Diagrams"
, and
●
When you perform trouble diagnosis, refer to the following:
●
GI-9, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
, and
●
GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident"
Check for any Service bulletins before servicing the vehicle.
PREPARATION
BCS-3
C
D
E
F
G
H
I
J
L
M
A
B
BCS
PREPARATION
PFP:00002
Special Service Tools
EKS006WX
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
*: Special tool or commercial equivalent
Tool number
(Kent-Moore No.)
Tool name
Description
(J-43241)
Remote keyless entry tester
Used to test keyfobs
LEL946A
BCS-4
SMART ENTRANCE CONTROL UNIT
SMART ENTRANCE CONTROL UNIT
PFP:28596
Description
EKS006WY
The following systems are controlled by the smart entrance control unit.
●
Warning chime
●
Rear window defogger timer
●
Power window
●
Power door lock
●
Remote keyless entry
●
Vehicle security
●
Room lamp
For detailed description and wiring diagrams, refer to the relevant pages for the each system.
The control unit receives data from the switches and sensors to control their corresponding system relays and
actuators.
System
Input
Output
Warning chime
Key switch (Insert)
Ignition switch (ON)
Lighting switch (1st)
Seat belt buckle switch
Front door switch LH
Warning chime
Rear window defogger timer
Ignition switch (ON or START)
Rear window defogger switch
Rear window defogger relay
Power window
Ignition switch (ON)
Door switches
Power window relay
Power door lock
Door lock/unlock switch
Key switch (Insert)
Door switches
Door key cylinder switches
Door lock actuator
Remote keyless entry
Key switch (Insert)
Ignition switch (ACC)
Door switches
Antenna (keyfob signal)
Door lock/unlock switches
Horn relay
Vehicle security lamp relay
Door lock actuator
Room lamp
Vehicle security
Ignition switch (ACC, ON)
Door switches
Hood switch
Door lock/unlock switches
Door key cylinder switch (Lock/unlock)
Horn relay
Vehicle security lamp relay
Vehicle security relay
(Starter interrupt)
Security indicator lamp
Room lamp
Door switches
Ignition switch
Key switch (Insert)
Room lamp
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