wiring NISSAN TITAN 2019 Owner´s Manual

2. Apply the parking brake to access thejumper harness connector. 3. Locate the jumper harness connector
under the lower portion of the instru-
ment panel. The connector is taped to
the wiring harness
Aas indicated. Wire color designation for electric trailer
brake controller jumper harness.
WIRE COLOR
NOTE
RED/GREEN Vehicle stop lamp
switch to trailer brake
controller.
BLACK Brake controller
ground (-).
BROWN/WHITE Trailer brake controller
switched output.
RED/BLUE Trailer brake controller
illumination.
RED Fused trailer brake
controller battery feed
(B+).
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10-56Technical and consumer information

NOTE:
Trailer Sway Assist cannot reduce trailer
sway in all situations.∙ Be careful when passing other vehicles. Passing while towing a trailer requires
considerably more distance than nor-
mal passing. Remember, the length of
the trailer must also pass the other ve-
hicle before you can safely change
lanes.
∙ Use the Tow Mode or downshif t the transmission to a lower gear for engine
braking when driving down steep or
long hills. This will help slow the vehicle
without applying the brakes.
∙ Avoid holding the brake pedal down too long or too frequently. This could cause
the brakes to overheat, resulting in re-
duced braking efficiency.
∙ Increase your following distance to al- low for greater stopping distances
while towing a trailer. Anticipate stops
and brake gradually.
∙ NISSAN recommends that the cruise control (if so equipped) not be used
while towing a trailer. ∙ Some states or provinces have specific
regulations and speed limits for ve-
hicles that are towing trailers. Obey the
local speed limits.
∙ Check your hitch, trailer wiring harness connections, and trailer wheel lug nuts
af ter 50 miles (80 km) of travel and at
every break.
∙ When launching a boat, don’t allow the water level to go over the exhaust tail
pipe or rear bumper.
∙ Make sure you disconnect the trailer lights before backing the trailer into the
water or the trailer lights may burn out.
When towing a trailer, final drive gear oil
should be replaced and transmission
oil/fluid should be changed more fre-
quently. For additional information, refer
to the “Do-it-yourself ” section in this
manual.
Tow mode
Using tow mode is recommended when
pulling a heavy trailer or hauling a heavy
load. Press the TOW MODE switch to acti-
vate tow mode. The indicator light on the
TOW MODE switch illuminates when tow
mode is selected. Press the TOW MODE
switch again to turn tow mode off. Tow mode is automatically canceled when the
ignition switch is turned off.
Tow mode includes the following features:
∙ Grade logic — Adjusts transmission shif ts when pulling a trailer or hauling a
load up a grade.
∙ Downhill Speed Control (DSC) — auto- matically downshif ts when driving
down a grade with a trailer or heavy
load to help control vehicle speed.
Driving the vehicle in the tow mode with no
trailer/load or light trailer/light load will not
cause any damage. However, fuel
economy may be reduced and the
transmission/engine driving characteris-
tics may feel unusual.
When towing a trailer, final drive gear oil
should be replaced and transmission
oil/fluid should be changed more fre-
quently. For additional information, refer
to the “Do-it-yourself ” section of this
manual.
10-62Technical and consumer information

3. Clean the area around the stage 1 fuelfilter.
4. Drain the fuel filter housing. For addi- tional information, refer to “Draining
water” in this section.
5. Close the water-in-fuel drain.
6. Disconnect the wiring harness
Afrom
the water-in-fuel sensor.
7. Remove the fuel filter housing (Stage 1) protector
Bfrom the moduleC.
NOTE:
- It may be necessary to use a screw-
driver in the slots provided to remove the
fuel filter element from the housing.
- If fuel filter element does not release
with housing remove the element by
twisting and pulling directly away from
module simultaneously. Do not bend or
exert a side force as that may damage
the filter assembly and result in no-start.8. Remove the fuel filter element
Dby
lif ting it out of the fuel filter housing.
9. Remove and discard the sealing o-ring
Efrom the fuel filter housing.
INSPECTION
Inspect the fuel filter housing and module
for cracks, passage blockages, and other
damage. If damage is found, replacement
is mandatory.
It is recommended that you visit a NISSAN
dealer for this service.
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15. Connect the wiring harness to thewater-in-fuel sensor.
16. Reinstall the fuel filter housing (stage 1) protector.
17. Connect the lef t and right side batter- ies.
18. Prime the fuel system. For additional information, refer to “Fuel system prim-
ing” in this section.
FUEL FILTER REPLACEMENT (stage
2)
NOTE:
∙ It is possible the “Low Fuel Pressure:
See Owner’s Manual” message will
display on the vehicle information
display af ter fuel filter replacement
due to air being introduced into the
fuel system.
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