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INSTALLATION MANUAL
Level of Difficulty
Easy
Installation difficulty levels are based on time
and effort involved and may vary depending on
the installer level of expertise, condition of the
vehicle and proper tools and equipment.
Wiring Location(s)
S1 and S2
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
S10
S9
S1
S2
S3
S4
S8
S5
S6
S7
* Representative vehicle shown
Tools Required
Ratchet
Panel trim
removal tool
Socket, 10mm
Small flathead
screwdriver
Socket extension
Phillips screwdriver
Fishwire
Wire cutter
58992-INS-RA
09/30/2021
WARNING
Do not exceed product rating or tow vehicle lamp load rating, whichever is lower.
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 wired trailer.
Maintenance
Periodic inspection of all wires and connections should be performed
to ensure there is no visible damage or loose connections.
ECN8773
PAGE 1 OF 6

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Summary of Contents for curt 58992

  • Page 1 S10 Behind passenger side rear access panel * Representative vehicle shown Tools Required Ratchet Panel trim removal tool Socket, 10mm Small flathead screwdriver Socket extension Phillips screwdriver Fishwire Wire cutter 58992-INS-RA • 09/30/2021 • ECN8773 • PAGE 1 OF 6...
  • Page 2 Step 4 Remove the taillight panel trim straight out, starting at the bottom and working your way up. Repeat on the other side of the vehicle. 58992-INS-RA • 09/30/2021 • ECN8773 •...
  • Page 3 Route the harness housings up and around the rear bumper and attach to the factory harness and driver-side rear taillight. The yellow wire should route behind the rear door trim removed. Zip tie the harness in place as needed. 58992-INS-RA • 09/30/2021 • ECN8773 •...
  • Page 4 Once the RV harness is installed, verify that the harness is functioning by attaching the 4-flat to any vehicle with functioning trailer lights. The taillights on the tow vehicle should function along with the taillights on the towing vehicle. 58992-INS-RA • 09/30/2021 • ECN8773 •...
  • Page 5 Fish wire could be anything from a cut-up wire hanger, stiff wire, rope or string depending on what is needed for the installation. 58992-INS-RA • 09/30/2021 • ECN8773 •...
  • Page 6 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. 58992-INS-RA • 09/30/2021 • ECN8773 •...