curt 58909 User manual

58909-INS-RA •PAGE 1
INSTALLATION MANUAL
Level of Difficulty
Moderate
Product Photo
Included Parts
Product Registration and Warranty
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Maintenance
Periodic inspection of all wires and connections should be performed
to ensure there is no visible damage or loose connections.
Electrical Ratings
Signal circuits 7.5-amps per side
Tail / Running Circuits 7.5-amps total
Check vehicle owner's manual or contact
the vehicle manufacturer for more information.
NOTICE
Before you begin installation, read all instructions thoroughly.
Proper tools will improve the quality of installation and reduce the time required.
All steps must be followed to ensure the product will function properly. Once installed,
test for proper function by using a test light or connecting a properly tow vehicle.
WARNING
Do not exceed product rating or tow vehicle lamp load rating, whichever is lower.
Wiring Location Guide*
for SUVs and Vans (S)
S1 Behind driver side taillight housing
S2 Behind passenger side taillight housing
S3 Behind driver side rear access panel
S4
Behind passenger side rear access panel
S5 Behind driver side rear bumper
S6 Behind center of rear bumper
S7 Behind passenger side rear bumper
S8 Under rear floor panel
S9 Behind driver side rear access panel
S10
Behind passenger side rear access panel
S5 S6 S7
S1 S3
S8
S4 S2
S9 S10
* Representative vehicle shown
Wiring Location(s)
S1 and S2
Tools Required
Ratchet Socket, 8mm
Torx bit, T30 Socket, 10mm
Fishwire Utility knife

58909-INS-RA •PAGE 2
Step 4
Locate a suitable grounding point near the connector such as an existing screw with nut in the vehicle frame or drill a 3/32" pilot hole for the
provided screw. The area should be free of rust, dirt and paint. Secure the white ground wire using the ring terminal and provided screw.
WARNING
Check for miscellaneous items that may be hidden behind or under any surface before drilling to avoid damage and / or personal injury.
Step 5
Route the portion of the RV harness with connectors containing green wires down the taillight opening.
On the passenger side, route a fishwire through the bumper frame to the driver side. Secure the RV harness ends
to the fishwire and pull through the bumper frame. Route the connector ends up through the taillight opening and repeat step 3.
Step 2
On both sides of the taillight openings it may
be necessary to trim the black plastic piece
attached to the bumper fascia.
Use a utility knife to cut away the corner. This
should only be done if you cannot carefully pull
the bumper fascia away enough to allow the RV
harness connectors to pass through.
Step 1
Open the rear hatch and use a T30 Torx
screwdriver to remove the screws securing
the taillights on the driver and passenger
side. Gently remove the taillights and inspect
connectors for dirt and debris and clean
if necessary.
Step 3
Starting on the driver side, position the
RV harness connector ends containing
yellow wires between the separated
vehicle harness connectors.
Press the connectors firmly into the
vehicle connectors until they lock into
place. Pull on the connectors to ensure
the locks are engaged.

58909-INS-RA •PAGE 3
Step 9
At the front driver-side wheel well, remove
three push clips and bolt using an 8mm socket.
From inside the engine compartment, route
a fishwire down through the wheel well area
to the right side. Secure the 4-flat and pull
through the wheel well area.
Step 8
Continue routing the 4-flat to the front of the vehicle underneath the plastic guard until you
reach the end near the driver-side front wheel well. Secure with cable ties if necessary.
WARNING
Avoid areas that contain moving parts or could cut, pinch or burn the wires when routing the 4-flat harness to the
front of the vehicle. Failure to follow these warnings may cause property damage, personal injury or loss of life.
Step 6
Cut the cable ties on the 4-flat portion of
the harness. Route the 4-flat portion of the
RV harness down the taillight opening.
Use a 10mm socket to remove the two bolts
and two push clips in the driver-side rear wheel
well. Starting on the left side of the wheel well,
route up and over the wheel well to the right
side. Secure the 4-flat to the fishwire and pull
through the wheel well.
Step 7
Place a cable tie pad on a flat surface located
near the grommet. Use a 10mm socket to
remove the bolt holding the plastic guard in
place. Route the 4-flat to the plastic guard and
secure to the cable tie pad using a cable tie.

58909-INS-RA •PAGE 4
Step 10
Route the 4-flat to the area near the window
wash fill lid. Locate a suitable position to
mount the 4-flat bracket. Using the bracket as
a template, mark the two holes and drill two
3/32" holes and attach the bracket using the
two remaining screws. Secure the 4-flat to the
frame rail with a cable tie.
WARNING
Take care not to drill through
the body or any exposed surface.
Step 11
Secure any excess wire so that it is not drooping or dangling, but not so tight that it causes unnecessary strain to the wire
which could lead to breakage over time. After removing slack from the 4-flat wire, tighten any zip ties and add as needed.
Use a zip tie to fasten any excess wire to a solid spot along the driver-side inner fender.
Reinstall all items removed during install. If it was disconnected at the beginning of the installation,
reconnect the negative battery terminal. Install the provided 4-flat dust cover to help prevent corrosion.