ECU NISSAN FRONTIER 2017 D23 / 3.G Service Manual

weight on the seat detected by the occupant
classification sensor and the belt tension de-
tected on the seat belt, the NISSAN Advanced
Air Bag System determines whether the front
passenger air bag should be automatically turned
OFF as required by the regulations.
Front passenger seat adult occupants who are
properly seated and using the seat belt as out-
lined in this manual should not cause the front
passenger air bag to be automatically turned
OFF. For small adults it may be turned OFF,
however, if the occupant does not sit in the seat
properly (for example, by not sitting upright, by
sitting on an edge of the seat, or by otherwise
being out of position) , this could cause the sen-
sor to turn the air bag OFF. In addition, if the
occupant improperly uses the seat belt in the
ALR mode, this could cause the air bag to be
turned OFF. Always be sure to be seated and
wearing the seat belt properly for the most effec-
tive protection by the seat belt and supplemental
air bag.
NISSAN recommends that pre-teens and chil-
dren be properly restrained in a rear seat.
NISSAN also recommends that appropriate child
restraints and booster seats be properly installed
in a rear seat. If this is not possible, the occupant
classification sensor and seat belt sensors are
designed to operate as described above to turn
the front passenger air bag OFF for specifiedchild restraints as required by the regulations.
Failing to properly secure child restraints and to
use the ALR mode may allow the restraint to tip or
move in a collision or sudden stop. This can also
result in the passenger air bag inflating in a crash
instead of being OFF. For additional information
about proper use and installation, refer to “Child
restraints” in this section.
If the front passenger seat is not occupied, the
front passenger air bag is designed not to inflate
in a crash. However, heavy objects placed on the
seat could result in air bag inflation, because of
the object’s weight detected by the occupant
classification sensor. Other conditions could also
result in air bag inflation, such as if a child is
standing on the seat, or if two children are on the
seat, contrary to the instructions in this manual.
Always be sure that you and all vehicle occupants
are seated and restrained properly.
Using the front passenger air bag status light, you
can monitor when the front passenger air bag is
automatically turned OFF with the seat occupied.
The light will not illuminate when the front pas-
senger seat is unoccupied.
If an adult occupant is in the seat but the front
passenger air bag status light is illuminated (indi-
cating that the air bag is OFF) , it could be that the
person is a small adult, or is not sitting on the seat
properly or not using the seat belt properly.If a child restraint must be used in the front seat,
the front passenger air bag status light may or
may not be illuminated, depending on the size of
the child and the type of child restraint being
used. If the air bag status light is not illuminated
(indicating that the air bag might inflate in a
crash) , it could be that the child restraint or seat
belt is not being used properly. Make sure that
the child restraint is installed properly, the seat
belt is used properly and the occupant is posi-
tioned properly. If the air bag status light is not
illuminated, reposition the occupant or child re-
straint in a rear seat.
If the front passenger air bag status light will not
illuminate even though you believe that the child
restraint, the seat belts and the occupant are
properly positioned, the system may be sensing
an unoccupied seat (in which case the air bag is
OFF) . A NISSAN dealer can check that the sys-
tem is OFF by using a special tool. However, until
you have confirmed with a dealer that your air bag
is working properly, reposition the occupant or
child restraint in a rear seat.
The NISSAN Advanced Air Bag System and front
passenger air bag status light will take a few
seconds to register a change in the passenger
seat status. For example, if a large adult who is
sitting in the front passenger seat exits the ve-
hicle, the front passenger air bag status light will
go from OFF to ON for a few seconds and then to
Safety—Seats, seat belts and supplemental restraint system1-81

2 Instruments and controls
Instrument panel...................................2-2
Meters and gauges ................................2-3
Speedometer and odometer .....................2-4
Tachometer ....................................2-6
Engine coolant temperature gauge ...............2-6
Fuel gauge ....................................2-7
Engine oil pressure gauge (if so equipped) ........2-8
Voltmeter (if so equipped) .......................2-8
Trip computer (if so equipped) ...................2-9
Compass and outside temperature display
(if so equipped) .................................. 2-10
Outside temperature display ....................2-11
Compass ..................................... 2-11
Warning lights, indicator lights and audible
reminders ........................................ 2-14
Checking lights ............................... 2-15
Warning lights ................................ 2-15
Indicator lights ................................ 2-20
Audible reminders ............................. 2-24
Security systems (if so equipped) ..................2-24
Vehicle security system (if so equipped) ..........2-24
NISSAN vehicle immobilizer system
(if so equipped) ............................... 2-26
Wiper and washer switch ......................... 2-27Switch operation
.............................. 2-28
Rear window or outside mirror defroster switch
(if so equipped) .................................. 2-28
Headlight and turn signal switch ....................2-29
Headlight control switch ........................ 2-29
Daytime running light system (Canada only) ......2-32
Instrument brightness control ...................2-32
Turn signal switch ............................. 2-33
Fog light switch (if so equipped) ................2-33
Horn ............................................ 2-33
Cargo lamp switch................................ 2-34
Heated seat switches (if so equipped) ..............2-34
Vehicle Dynamic Control (VDC) off switch ...........2-35
Hill descent control switch (if so equipped) ..........2-36
Electronic locking rear differential (E-Lock) system
switch (if so equipped) ............................ 2-37
Clutch interlock (clutch start) switch
(if so

equipped) .................................. 2-38
Rear sonar system off switch (if so equipped) ........2-38
Power outlets .................................... 2-39
Storage ......................................... 2-40
Front-door pocket ............................. 2-40
Seatback pocket (if so equipped) . . .............2-41
Under-seat storage bins ........................ 2-42

4WD warning light (model)Low tire pressure warning lightHigh beam indicator light (blue)
orAnti-lock Braking System (ABS)
warning lightLow windshield-washer fluid warning light (if so
equipped)Hill descent control system ON indicator light
(if so equipped)
Automatic transmission check warning light (if
so equipped)Seat belt warning light and chimeMalfunction Indicator Light (MIL)
Automatic transmission oil temperature warning
light (if so equipped)Supplemental air bag warning lightOverdrive OFF indicator light (if so equipped)
Automatic transmission park warning light
(model)4WD shift indicator light (model)Security indicator light (if so equipped)
orBrake warning lightAutomatic transmission position indicator light
(if so equipped)Slip indicator light
Charge warning lightCruise main switch indicator light (if so
equipped)Transfer 4LO position indicator light
(model)
Door open warning lightCruise set switch indicator light (if so equipped)Turn signal/hazard indicator lights
Engine oil pressure warning lightElectronic locking rear differential (E-Lock) sys-
tem ON indicator light (if so equipped)Vehicle Dynamic Control (VDC) OFF indicator
light
Low fuel warning lightFront passenger air bag status light
WARNING LIGHTS, INDICATOR
LIGHTS AND AUDIBLE REMINDERS
2-14Instruments and controls

If the ABS warning light illuminates while the
engine is running or while driving, it may indicate
the ABS is not functioning properly. Have the
system checked. It is recommended that you visit
a NISSAN dealer for this service.
If an ABS malfunction occurs, the anti-lock func-
tion is turned off. The brake system then operates
normally but without anti-lock assistance. For
additional information, refer to “Brake system” in
the “Starting and driving” section of this manual.
Automatic transmission checkwarning light (if so equipped)
When the ignition switch is placed in the ON
position, the light comes on for about 2 seconds.
If the light comes on at any other time, it may
indicate the automatic transmission system is not
functioning properly. Have the system checked. It
is recommended that you visit a NISSAN dealer
for this service.
Automatic transmission oiltemperature warning light (if so
equipped)
This light comes on when the automatic transmis-
sion oil temperature is too high. If the light comes
on while driving, reduce the vehicle speed as
soon as safely possible until the light turns off.
CAUTION
Continued vehicle operation when the A/T
oil temperature warning light is on may
damage the automatic transmission.
Automatic transmission parkwarning light (
model)
WARNING
● If the ATP light is ON, this indicates that
the automatic transmission P (Park) po-
sition will not function and the transfer
case is in neutral.
● When parking, always make sure that
the 4WD shift indicator light illuminates
and the parking brake is set. Failure to
engage the transfer position in 2WD, 4H
or 4LO could result in the vehicle mov-
ing unexpectedly, resulting in serious
personal injury or property damage. ●
Shift the 4WD switch into the 2WD, 4H
or 4LO position again to turn off the ATP
warning light when the shift lever is in
the P position and the ATP warning light
is ON. (Before shifting the 4WD switch
into the 4LO position, move the shift
lever into the N position once, shift the
shift lever into P again and make sure
the ATP warning light is OFF.)
This light indicates that the automatic transmis-
sion parking function is not engaged. If the trans-
fer control is not secured in any drive position
while the shift lever is in the P (Park) position, the
transmission will disengage and the drive wheels
will not lock.
orBrake warning light
This light functions for both the parking brake and
the foot brake systems.
Parking brake indicator
When the ignition switch is placed in the ON
position, the light comes on when the parking
brake is applied.
2-16Instruments and controls

Low brake fluid warning light
When the ignition switch is placed in the ON
position, the light warns of a low brake fluid level.
If the light comes on while the engine is running,
with the parking brake not applied, stop the ve-
hicle and perform the following:1. Check the brake fluid level. Add brake fluid as necessary. For additional information, re-
fer to “Brake fluid” in the “Do-it-yourself”
section of this manual.
2. If the brake fluid level is correct, have the warning system checked. It is recommended
that you visit a NISSAN dealer for this ser-
vice.
WARNING
●Your brake system may not be working
properly if the warning light is on. Driv-
ing could be dangerous. If you judge it
to be safe, drive carefully to the nearest
service station for repairs. Otherwise,
have your vehicle towed because driv-
ing it could be dangerous.
● Pressing the brake pedal with the en-
gine stopped and/or a low brake fluid
level may increase your stopping dis-
tance and braking will require greater
pedal effort as well as pedal travel. ●
If the brake fluid level is below the
MINIMUM or MIN mark on the brake
fluid reservoir, do not drive until the
brake system has been checked. It is
recommended that you visit a NISSAN
dealer for this service.
Anti-lock Braking System (ABS) warning
indicator
When the parking brake is released and the
brake fluid level is sufficient, if both the brake
warning light and the ABS warning light illumi-
nate, it may indicate the ABS is not functioning
properly. Have the brake system checked and, if
necessary, repaired. It is recommended that you
visit a NISSAN dealer for this service. Avoid
high-speed driving and abrupt braking. For addi-
tional information, refer to “Anti-lock Braking Sys-
tem (ABS) warning light” in this section.
Charge warning light
If this light comes on while the engine is running,
it may indicate the charging system is not func-
tioning properly. Turn the engine off and check
the generator belt. If the belt is loose, broken,
missing, or if the light remains on, have the sys-
tem checked. It is recommended that you visit a
NISSAN dealer for this service.
CAUTION
● Do not ground electrical accessories di-
rectly to the battery terminal. Doing so
will bypass the variable voltage control
system and the vehicle battery may not
charge completely. For additional infor-
mation, refer to “Variable voltage con-
trol system” in the “Do-it-yourself” sec-
tion of this manual.
● Do not continue driving if the generator
belt is loose, broken or missing.
Door open warning light
This light comes on when any of the doors are not
closed securely while the ignition switch is in the
ON position.
Engine oil pressure warning
light
This light warns of low engine oil pressure. If the
light flickers or comes on during normal driving,
pull off the road in a safe area, stop the engine
immediately and call a NISSAN dealer or other
authorized repair shop.
Instruments and controls2-17

Low windshield-washer fluidwarning light (if so equipped)
This light comes on when the windshield-washer
fluid is at a low level. Add windshield-washer fluid
as necessary. For additional information, refer to
“Windshield-washer fluid” in the “Do-it-yourself”
section of this manual.
Seat belt warning light andchime
The light and chime remind you to fasten your
seat belts. The light illuminates whenever the
ignition switch is placed in the ON or START
position and remains illuminated until the driver’s
seat belt is fastened. At the same time, the chime
sounds for about 6 seconds unless the driver’s
seat belt is securely fastened.
The seat belt warning light may also illuminate if
the front passenger’s seat belt is not fastened
when the front passenger’s seat is occupied. For
7 seconds after the ignition switch is placed in
the ON position, the system does not activate the
warning light for the front passenger.
For additional information, refer to “Seat belts” in
the “Safety—Seats, seat belts and supplemental
restraint system” section of this manual.
Supplemental air bag warninglight
When the ignition switch is placed in the ON or
START position, the supplemental air bag warn-
ing light illuminates for about 7 seconds and then
turns off. This means the system is operational.
If any of the following conditions occur, the front
air bag, side air bag, curtain air bag, and preten-
sioner seat belt systems need servicing:
● The supplemental air bag warning light re-
mains on after approximately 7 seconds.
● The supplemental air bag warning light
flashes intermittently.
● The supplemental air bag warning light does
not come on at all.
It is recommended that you visit a NISSAN dealer
for these services.
Unless checked and repaired, the supplemental
restraint system (air bag system) and/or the pre-
tensioner(s) may not function properly. For addi-
tional information, refer to “Supplemental Re-
straint System (SRS)” in the “Safety—Seats, seat
belts and supplemental restraint system” section
of this manual.
WARNING
If the supplemental air bag warning light
is on, it could mean that the front air bag,
side air bag, curtain air bag and/or preten-
sioner systems will not operate in an acci-
dent. To help avoid injury to yourself or
others, have your vehicle checked as soon
as possible. It is recommended that you
visit a NISSAN dealer for this service.
INDICATOR LIGHTS
This vehicle has various indicator lights that may
illuminate to indicate a system status. For addi-
tional information, refer to the specific light in this
section.
4WD shift indicator light (
model)
The light should turn off within 1 second after
placing the ignition switch in the ON position.
While the engine is running, the 4WD shift indi-
cator light will illuminate the position selected by
the 4WD shift switch.
The 4WD shift indicator light may blink
while shifting from one drive mode to the
other.
2-20Instruments and controls

Malfunction Indicator Light(MIL)
If this indicator light comes on steady or blinks
while the engine is running, it may indicate a
potential emission control malfunction.
The MIL may also come on steady if the fuel-filler
cap is loose or missing, or if the vehicle runs out
of fuel. Check to make sure the fuel-filler cap is
installed and closed tightly, and that the vehicle
has at least 3 gal (11.4 L) of fuel in the fuel tank.
After a few driving trips, the
light should
turn off if no other potential emission control
system malfunction exists.
If this indicator light comes on steady for 20 sec-
onds and then blinks for 10 seconds when the
engine is not running, it indicates that the vehicle
is not ready for an emission control system
inspection/maintenance test. For additional infor-
mation, refer to “Readiness for
inspection/maintenance (I/M) test” in the “Tech-
nical and consumer information” section of this
manual.
Operation
The MIL will come on in one of two ways: ●
MIL on steady — An emission control system
malfunction has been detected. Check the
fuel-filler cap if the LOOSE FUEL CAP
warning appears in the trip computer. If the
fuel-filler cap is loose or missing, tighten or
install the cap and continue to drive the
vehicle. The
light should turn off after
a few driving trips. If the
light does not
turn off after a few driving trips, have the
vehicle inspected. It is recommended that
you visit a NISSAN dealer for this service.
You do not need to have your vehicle towed
to the dealer.
● MIL blinking — An engine misfire has been
detected which may damage the emission
control system. To reduce or avoid emission
control system damage:
– do not drive at speeds above 45 mph (72 km/h).
– avoid hard acceleration or deceleration.
– avoid steep uphill grades.
– if possible, reduce the amount of cargo being hauled or towed.
The MIL may stop blinking and come on steady.
Have the vehicle inspected. It is recommended
that you visit a NISSAN dealer for this service.
You do not need to have your vehicle towed to the
dealer.
CAUTION
Continued vehicle operation without hav-
ing the emission control system checked
and repaired as necessary could lead to
poor driveability, reduced fuel economy,
and possible damage to the emission con-
trol system.
Overdrive OFF indicator light (if
so equipped)
This light comes on when the overdrive function
is OFF.
The automatic transmission overdrive function is
controlled by the overdrive switch.
For additional information, refer to “Driving the
vehicle” in the “Starting and driving” section of
this manual.
Security indicator light (if soequipped)
This light blinks when the ignition switch is in the
OFF, LOCK or ACC position. This function indi-
cates the security systems equipped on the ve-
hicle are operational.
For additional information, refer to “Security sys-
tems” in this section.
2-22Instruments and controls

If the battery is removed or discharged, the VDC
system is disabled and the VDC indicator light
will not turn off after 2 seconds when the ignition
switch is turned to the ON position. To reset the
system, you must perform the reset procedure.
For additional information, refer to “Vehicle Dy-
namic Control (VDC) system” in the “Starting and
driving” section of this manual.
If the light does not go off after performing the
reset procedure, have the traction control system
checked. It is recommended that you visit a
NISSAN dealer for this service.
While the VDC system is operating, you might
feel slight vibration or hear the system working
when starting the vehicle or accelerating, but this
is normal.
The VDC system will be disabled and the VDC
light will illuminate when the electronic locking
rear differential (E-lock) system switch (if so
equipped) is turned on and the E-lock system is
engaged. If the E-lock system disengages or the
switch is turned off, the VDC system will be
enabled and the VDC light will turn off.AUDIBLE REMINDERS
Brake pad wear warning
The disc brake pads have audible wear warnings.
When a disc brake pad requires replacement, it
makes a high pitched scraping sound when the
vehicle is in motion, whether or not the brake
pedal is depressed. Have the brakes checked as
soon as possible if the warning sound is heard.
Key reminder chime
A chime sounds if the driver’s door is opened
while the key is left in the ignition switch. Remove
the key and take it with you when leaving the
vehicle.
Light reminder chime
With the ignition switch placed in the OFF posi-
tion, a chime sounds when the driver’s door is
opened if the headlights or parking lights are on.
Turn the headlight control switch off before leav-
ing the vehicle.Your vehicle may have two types of security sys-
tems:
● Vehicle security system (if so equipped)
● NISSAN Vehicle Immobilizer System (if so
equipped)
VEHICLE SECURITY SYSTEM (if so
equipped)
The vehicle security system provides visual and
audible alarm signals if someone opens the doors
when the system is armed. It is not, however, a
motion detection-type system that activates
when a vehicle is moved or when a vibration
occurs.
LIC0359
SECURITY SYSTEMS (if so equipped)
2-24Instruments and controls

The system helps deter vehicle theft but cannot
prevent it, nor can it prevent the theft of interior or
exterior vehicle components in all situations. Al-
ways secure your vehicle even if parking for a
brief period. Never leave your keys in the ignition,
and always lock the vehicle when unattended. Be
aware of your surroundings, and park in secure,
well-lit areas whenever possible.
Many devices offering additional protection, such
as component locks, identification markers, and
tracking systems, are available at auto supply
stores and specialty shops. A NISSAN dealer
may also offer such equipment. Check with your
insurance company to see if you may be eligible
for discounts for various theft protection features.
How to arm the vehicle security
system
1. Close all windows.(The system can be
armed even if the windows are open.)
2. Remove the key from the ignition switch.
3. Close all doors. Lock all doors. The doors can be locked with the key, power door lock
switch (if the door is opened, locked and
then closed) , or with the key fob. Key fob operation:
●
Press the
button on the key fob.
All doors lock. The hazard lights flash
twice and the horn beeps once to indicate
all doors are locked.
● When the
button is pressed with
all doors locked, the hazard lights flash
twice and the horn beeps once as a re-
minder that the doors are already locked.
The horn may or may not beep. For addi-
tional information, refer to “Silencing the
horn beep feature” in the “Pre-driving
checks and adjustments” section of this
manual.
4. Confirm that the
indicator light comes
on. The
light stays on for about
30 seconds. The vehicle security system is
now pre-armed. After about 30 seconds the
vehicle security system automatically shifts
into the armed phase. The
light begins
to flash once every 3 seconds. If, during the
30-second pre-arm time period, the driver’s
door is unlocked by the key or the key fob, or
the ignition switch is placed in ACC or ON
position, the system will not arm. ●
If the key is turned slowly when locking
the driver’s door, the system may not
arm. Furthermore, if the key is turned
beyond the vertical position toward the
unlock position the system may be dis-
armed when the key is removed. If the
indicator light fails to glow for a period
of time, unlock the door once and lock
it again.
● Even when the driver and/or passen-
gers are in the vehicle, the system will
arm with all doors closed and locked
with the ignition switch placed in the
OFF position.
Vehicle security system activation
The vehicle security system will give the following
alarm:
● The headlights blink and the horn sounds
intermittently.
● The alarm automatically turns off after a pe-
riod of time. However, the alarm reactivates if
the vehicle is tampered with again. The alarm
can be shut off by unlocking the driver’s door
with the key or by pressing the
button
on the key fob.
Instruments and controls2-25

Security indicator light
This light blinks when the ignition switch is
placed in the LOCK position with the key re-
moved from the ignition switch.
This function indicates the NISSAN Vehicle Im-
mobilizer System is operational.
If the NISSAN Vehicle Immobilizer System is mal-
functioning, the light will remain on while the
ignition switch is placed in the ON position.If the light still remains on and/or the en-
gine will not start, seek service for the
NISSAN Vehicle Immobilizer System as
soon as possible. Please bring all regis-
tered keys that you have. It is recom-
mended that you visit a NISSAN dealer for
this service.
LIC0474
Type A (if so equipped)
WIC0854
WIPER AND WASHER SWITCH
Instruments and controls2-27