curt 58902 User manual

58902-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)
S5 and S7
Tools Required
Ratchet Socket, 10mm
Flathead screwdriver Utility knife

58902-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 1
Using a Phillips screwdriver, remove the screws securing the plastic lens cover on the driver-side taillight.
Step 2
Using a 10mm socket, remove the three bolts
securing the taillight to the body. Gently pull
the taillight away from the vehicle and locate
the vehicle factory wiring harness connectors.
The connectors will be similar to those on the
RV harness.
Separate the connectors from the taillight
housing taking care not to damage the locking
tabs. Carefully remove the foam tape. Inspect
the connectors for dirt and debris.
Clean if necessary and repeat
this step on the passenger side.
Step 3
Starting on driver side, remove the plastic
shield located underneath the taillight cavity by
removing plastic clip that secures it in place.
Insert the RV harness end with yellow wire
between the separated connectors.
Make sure the connectors are fully inserted
with locking tabs in place. Re-apply the
foam tape removed in step 2.
Step 5
Route the RV harness end with the green wire
to the passenger side along the rear frame rail.
Repeat Step 3 on the passenger side using the
harness end with the green wire.

58902-INS-RA •PAGE 3
Step 8
Near the engine compartment, along the driver
side, route the 4-flat wire up the brake lines
and along the factory wiring harness.
Route to a location near the hood release.
Secure the 4-flat to the factory wiring
harness with cable ties.
Step 6
Cut the cable ties on the 4-flat portion
of harness and route it down through
the opening behind the taillight.
Route the 4-flat over the top of the
fuel tank and secure with the provided
cable tie pad and cable ties.
Step 7
Continue routing towards the front of the
vehicle following the existing factory wiring
harness. Secure with cable ties.
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 9
Fish through the opening into an opening
behind the bumper. Locate a suitable mounting
location for the 4-flat bracket on the frame
behind the driver-side taillight. Using the
bracket as a template mark two holes and
drill two 3/32" holes and attach the bracket
using the two remaining screws.
WARNING
Take care not to drill through
the body or any exposed surface.
Step 10
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.