Installation Instructions
Directives de Montage
Instrucciones de Instalación
T-Connector
Connecteur en T
Conector en T
Jeep Grand Cherokee L
WARNING
ALWAYS read and follow all warnings and
instructions included with purchase before
beginning installation. Keep for future reference.
DO NOT exceed lower of towing manufacturing
rating (including in your vehicle owner's manual)
or specific amperage ratings stated on product.
ALWAYS read, understand and follow all
warnings and instructions printed on tow
vehicle's battery.
ALWAYS wear safety glasses and use all safety
precautions during installation.
118847-037
Rev. A
ENGLISH
TOOLS REQUIRED:
Trim Panel Remover, 10mm Socket & Ratchet or
10mm Wrench, Torx-25, Drill (3/32" Drill Bit), Wire
Crimpers, Wire Cutters, Philips Head Screwdriver,
Test-probe
1. Open hatch, locate trim panels covering the tail
lights, using a T-25 Torx bit remove the mounting
screws on both driver's and passenger's, being
carefull not to break trim panel mounting tabs.
Remove tail light mounting screws and set tail
a b
lights to the side.
2. Disconnect the vehicle wiring harness from both
taillight sockets. Separate this connector, being
careful not to break the locking tabs. All connector
surfaces should be clean and free of dirt.
3. Beginning on the passenger's side, route harness
containing the green wire underneath the vehicle
up through the opening between the vehicle
bumper and body to the passenger's side taillight
pocket.
4. On the passenger's side, insert the T-One
Connector end, with the green wire, between the
vehicle wiring connectors and lock into place. Be
careful not to damage the locking tabs and be sure
that connectors are fully inserted with locking tabs
c
in place.
CAUTION
Make sure module is mounted so that the epoxy
side of the module is pointed towards the ground to
prevent any water buildup.
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7/30/21
B
5. Underneath the vehicle, determine a suitable
mounting point behind the rear bumper fascia on
the driver's side. mount the T-One
box using the double-sided tape provided.
CAUTION
Verify what is behind any surface prior to drilling to
avoid damage to the vehicle and/or personal injury.
Do not drill into any exposed surfaces.
6. Locate a suitable grounding point near the
connector such as an existing ground stud or drill
a 3/32" hole and secure the white wire using the
eyelet and screw provided. (Do not drill into vehicle
floor or bed.) Clean dirt and rustproofing from area.
WARNING
If routing the wire thru a grommet and along the
exterior of the vehicle, be careful to avoid any hot
pipes, heat shields, the fuel tank or any other points
that may pinch or break the wire.
7. Route harness containing the yellow wire
underneath the vehicle up through the opening
between the vehicle bumper and body to the
driver's side taillight pocket.
®
8. On the driver's side, plug the T-Connector harness
containing the yellow wire in between the vehicle's
mating connectors.
9. Disconnect the vehicle's Negative (-) battery cable.
If not removed, remove the fuse from the yellow
fuse holder (provided). After cutting the fuse holder
wire, attach the ring terminal and secure to the
vehicle's Positive (+) battery cable. Connect the
other end of the fuse holder to the black 12 ga.
wire, using the yellow butt connector (provided).
10. Beginning from the front of the vehicle, route the
black 12 ga. wire rearward along the frame rail
avoiding any hot pipes, heat shields, the fuel tank or
any other points that may pinch or break the wire.
Connector black
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C
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11. Connect the other end of the black 12 ga. wire to
the black power wire located on the T-Connector's
black box, using the yellow butt connector
(provided).
12. Reconnect the vehicle's Negative (-) battery cable
and install the 15 amp fuse into the fuse holder
from step 9.
WARNING
Read and follow all warnings and cautions printed
on the tow vehicle's battery. All connections must
be complete for the T-One® Connector to function
properly. Test and verify installation with a test light
or trailer once installed. For initial test, reset vehicle
electrical system by temporarily removing the key
from the ignition.
13. Reinstall the plastic trim panels, threshold, storage
covers, floor covering and other items that may
have been removed during installation, being
careful not to pinch or cut the wires.
NOTE
Secure all loose wires and mount the Trailer Tow
Harness in an accessible location with a bracket or
electrical box.
WARNING
Overloading circuits can cause fires. DO NOT
exceed stated product ratings. Read vehicle's
owner's manual & instruction sheet for additional
information.