2012 NISSAN QUEST wiring

2012 NISSAN Towing Guide 8 will allow the chains/cables to drag on the ground.
Do not use S-hooks for attaching, as they may become un-hooked and are illegal in many
states. To avoid damage to the bumper and chains/cables when making a sharp turn, do not
attach the chains/cables too close to the coupler. Consult your trailer manufacturer for the
proper location of the chain/cable attachment to the trailer.

REAR VIEW MIRRORS
In many cases, a trailer can block your rear vision when you are using only the standard
NISSAN rear view mirrors. These mirrors were not designed for towing. “Extended” mirrors
specifically designed for trailer towing should be used when your rearward vision is
obstructed. Before using these mirrors, make certain that they comply with state and local
regulations. Telescoping Tow Mirrors are available as an accessory for certain Nissan vehicles.
Contact your NISSAN dealer for details.

BREAKAWAY SWITCH
On a trailer with electric brakes, a breakaway switch can automatically activate the trailer
brake system if the trailer becomes separated from the tow vehicle. Should the trailer become
detached, a breakaway switch may help prevent the trailer from wandering into another lane.
A breakaway switch relies on the power of a trailer battery, so make sure it is not
discharged. Never use the breakaway switch to “park” the trailer on a grade. The battery
would eventually discharge and release the brake, allowing the trailer to roll. Be sure to leave
enough slack in the tether on the breakaway switch to turn corners without binding. If you do
not, the electric trailer brakes will lock-up and not release. See your trailer manufacturer for
proper installation of a breakaway switch that is compatible with your trailer braking system.

TRAILER LIGHTS
Trailer lights should comply with all applicable federal, state, and local regulations, and should
be in proper working order at all times. A trailer’s taillights, stoplights, and turn signal lights
must be wired into the tow vehicle’s electrical system.*
Most trailers operate on a four-wire system in which the stoplights and turn signal lights
utilize the same wire. Most all NISSAN vehicles have separate wires for the stoplights and turn
signal lights, therefore a device called a “converter” is needed.** Specifically, a “powered

* Vehicles equipped with LED taillights require that wiring be connected at a specific location. For

assistance in hooking up trailer lights, contact your NISSAN dealer or a professional supplier of
towing
equipment.
** Armada, Frontier, Pathfinder, and Titan vehicles are pre-wired for trailer lighting and do not require a
converter.

2012 NISSAN Towing Guide 9 converter” must be used, as a converter of this type creates only minimal additional electrical
demand (draw) on the vehicle lighting circuits, which helps to ensure protection for the
vehicle’s sensitive electronics.
Always check for correct operation of the taillights, stoplights, and turn signal lights every
time you connect a trailer for towing. Never replace vehicle fuses with fuses of a higher
amperage rating than the original.
NOTE – Improper or poor quality trailer harness wiring may affect your vehicle’s electrical
system. Use only a NISSAN approved wiring harness, or, consult your dealer or a professional
supplier of towing equipment for compatible equipment.

BRAKES
As with hitches, several types of braking systems are available. Most states require a separate
braking system on trailers with a loaded weight above a specific amount, therefore you should
check to ensure you comply with all regulations. Have a professional supplier of towing
equipment demonstrate proper brake function testing.

NOTE – Never connect a hydraulic trailer brake system directly to the vehicle hydraulic
brake system.

Surge Brakes – The surge brake actuator is mounted on the trailer tongue with a hydraulic
line running to each trailer wheel. Surge brakes are activated by the trailer pushing against the
hitch ball when the tow vehicle is braking. Hydraulic surge brakes are common on rental
trailers and some boat trailers. In this type of system, there is no hydraulic or electric
connection for brake operation between the tow vehicle and the trailer.

Electric Trailer Brakes – Electric braking systems are activated by an electronic signal sent
from a trailer brake controller (special brake-sensing module). If electric trailer brakes are used,
NISSAN recommends all-electronic actuation because with this system it will not be
necessary to tap into the tow vehicle’s hydraulic system. For adjustment specifications, refer
to the brake controller manual for the controller being installed.
For your convenience, Armada, Frontier, Pathfinder, Titan, and NV vehicles are pre-wired to
accommodate most popular electric trailer brake controllers. A wiring harness* is either
included with your vehicle or available from your NISSAN dealer. This harness provides
electric trailer brake controller input and output connections to the vehicle wiring. See a
professional supplier of towing equipment for electric trailer brake controller availability.

* Contact a NISSAN dealer or a professional supplier of towing equipment for information on trailers
equipped with electric brakes and for Genuine NISSAN jumper harness availability for your specific
vehicle.

2012 NISSAN Towing Guide 10 NOTE – Improper or poor quality trailer harness wiring may affect your vehicle’s electrical
system. Use only a NISSAN approved wiring harness, or consult your dealer or a professional
supplier of towing equipment for compatible equipment.

SWAY CONTROL DEVICE
Sudden maneuvers, wind gusts, and buffeting caused by other vehicles can affect trailer
handling. Sway control devices may be used to help control these effects. If you choose to
use one, contact a reputable trailer hitch supplier to make sure the sway control device will
work with the vehicle, hitch, trailer and the trailer’s brake system. Follow the instructions
provided by the manufacturer for installing and using the sway control device.

GENUINE NISSAN PARTS AND ACCESSORIES
Whether you will be towing occasionally or on a regular basis, NISSAN offers a full range of
Genuine NISSAN Parts and Accessories to help you tow with confidence.
Every accessory is thoroughly tested and inspected for fit and workmanship. Therefore, you
can be certain that every item is designed to be compatible with the standard features of your
vehicle and designed to assist you with your towing needs.
Contact your NISSAN dealer for more information on accessories or towing-related parts
for your NISSAN vehicle.


PREPARING
YOUR VEHICLE

BREAK-IN AND MAINTENANCE SCHEDULE
NISSAN recommends that you allow a sufficient “break-in” (500 miles) of both the engine and
drivetrain before towing with your new NISSAN vehicle. In addition, for the first 500 miles that
you tow a trailer, do not drive over 50 mph and do not make starts at full throttle.
Keep in mind, too, that towing places higher demands and added loads on vehicle
components, so more frequent maintenance is called for. Your NISSAN Service &
Maintenance Guide provides the accelerated maintenance schedule for towing purposes.
Engine oil, filter, transmission oil, and possibly other fluids should be changed more frequently
when towing.

2012 NISSAN Towing Guide 17 VEHICLE MODIFICATIONS
Vehicle modifications — beyond those required for proper hitch installation, wiring hook-up, or
adding extended mirrors — are not recommended for any NISSAN vehicle being used for
towing purposes. Changes to the drivetrain, suspension, exhaust systems, frame
structure/unibody, or other vehicle components are not necessary for towing within the limits
described in this guide. These changes may diminish the reliability and longevity of your
vehicle and possibly void warranty coverage.

TOOL KIT
When towing, bring tools including, flares, a flashlight, emergency reflectors, jumper cables,
extra fuses, extra radiator coolant, oil, and easily replaced spare parts such as taillight bulbs.
You should also carry spare tires for your tow vehicle and trailer, as well as a jack suitable for
use on the trailer. Be aware that not all automotive jacks can be used safely on a trailer.

BEFORE STARTING OUT
Before starting out on a trip, make one last inspection of the tow vehicle and the trailer. Are
the tire pressures correct? Are the safety chains/cables securely in place? Is the cargo tied
down securely? Do all the lights work? Is the coupler properly attached over the hitch ball and
secured using a locking pin? Is the breakaway switch hooked up and functioning properly?
Are vehicle and electric trailer brakes working properly?
Make a checklist of key items to be inspected. When towing, vehicle engine oil,
transmission oil, and coolant should always be checked before starting out. Finding a potential
problem while in your driveway is better than discovering it miles from home.


TOWING
TIPS

If you have never towed a trailer before, be aware that it does take getting used to. To begin
with, towing noticeably affects your vehicle’s performance:
Š It will not accelerate as quickly — an important point to keep in mind when merging onto a
highway.
Š It will not stop as quickly. Leave more room than usual between you and the traffic ahead,
and brake sooner when coming to a stop.
Š Abrupt maneuvering can unbalance the load and reduce the handling and stability of your
tow vehicle. Plan ahead and make lane changes and turns smoothly.

2012 NISSAN Towing Guide 23

HITCH BALL
A ball that connects the trailer to the tow vehicle hitch and provides the
means by which the trailer pivots during cornering. Available in a number
of sizes and weight capacities, it must correspond to the trailer coupler
size, and have a sufficient capacity rating for the trailer being pulled.

RECEIVER HITCH A frame- or structure-mounted hitch with a receiver that allows removal of
the ball mount.

SAFETY CHAINS/CABLES Provides an emergency connection between the tow vehicle and the trailer,
should the trailer become disengaged for any reason.

SURGE BRAKES
Hydraulic-type braking system activated by inertia. As the tow vehicle
begins to brake, the trailer pushes against the hitch ball, consequently
activating the trailer brakes.

TRAILER TONGUE/COUPLER The part of the trailer that extends forward to meet the tow vehicle, and also
carries the coupler assembly.

TRAILER TONGUE
LOAD The amount of trailer (conventional) weight pressing down on the tow
vehicle hitch.

WEIGHT-DISTRIBUTING
HITCH SYSTEM Type of hitch system that helps shift the trailer tongue weight to all trailer
tires and the tow vehicle front tires. Strongly recommended when towing
trailers with a Maximum Trailer Weight greater than 5,000 lbs.

WIRING HARNESS
Provides an electrical connection linking the tow vehicle’s electrical system
to the trailer’s system.