CURT 16688 Q24 5th Wheel Slider Hitch Installation Guide

: June 4, 2024
: Curt

Table of Contents

Level of Difficulty
Maintenance
POWERED CONVERTER LEAD INSTRUCTION SHEET
Documents / Resources
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

16688 Q24 5th Wheel Slider Hitch
Installation Guide

Level of Difficulty

Easy
Installation difficulty levels are based on the time and effort involved and may vary depending on the installer’s level of expertise, condition of the vehicle, and proper tools and equipment.

Electrical Ratings

Signal circuits	5.0-amps per side
Tail / Running Circuits	7.5-amps total

Check the vehicle owner’s manual or contact the vehicle manufacturer for more information.

Wiring Location(s)

T1 and T2

*Wiring Location Guide for Trucks (T)**

T1	Behind driver-side taillight housing
T2	Behind passenger side taillight housing
T3	Behind driver side rear bumper
T4	Behind the center of the rear bumper fascia
T5	Behind the passenger side rear bumper

CURT 16688 Q24 5th Wheel Slider Hitch

Representative vehicle shown

Tools Required

Ratchet	Cutting tool
Socket, 8mm	Drill
Socket extension	3/32” drill bit
Fish wire	—

WARNING
Do not exceed product rating or tow vehicle lamp load rating, whichever is lower.
Be sure not to lay tools crossed the positive (typically noted with red covers or a red ‘+’ symbol). This can cause the ground to short causing sparks, and/or electrical shocks.
The battery connection must be fuse-protected, 10-amp max. Exceeding the product rating can cause loss of warranty, overheating, and potential fire.

NOTICE

Before you begin the 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.

Step 1
Locate the vehicle battery and disconnect the negative battery terminal. Be sure to fasten this wire down and away from the battery while completing the installation process. Step 2
Open the tailgate. Use an 8mm socket to remove two bolts
securing the taillights in place.
Repeat on the other side of the vehicle.

CURT 16688 Q24 5th Wheel Slider Hitch - Step 2

Step 3
Remove the taillight by pulling straight back.
Carefully remove the connectors, taking care not to damage the locking tabs on the back.
Set the taillight off to the side and repeat on the other side of the vehicle.

Step 4

Beginning on the driver’s side of the vehicle, drop a fish wire down inside the box where the taillight was removed. From under the vehicle, attach the yellow wire to the fish wire and pull it up into the taillight opening. Attach the custom wiring harness to the taillight.
Re-attach the factory harness to the taillight and to the custom wiring harness.

How to Fishwire

A) Fish wire is a way to push or pull an electrical wire through a blind hole.
Make sure the wire is long enough to stick out on the other side.
Insert the fish wire through the blind hole and locate it on the other side. CURT 16688 Q24 5th Wheel Slider Hitch - How to
Fishwire B) Use tape to secure the harness to the fish wire and pull it back up.
The fish wire or harness may get hung up on something, if this happens you may have to push back down, wiggle it around, or twist the wire to loosen it from what it’s hung up on. CURT 16688 Q24 5th Wheel Slider Hitch -
secure The fish wire could be anything from a cut-up wire hanger, stiff wire, rope, or string depending on what is needed for the installation.

Step 5
Route the green wire over to the passenger side. Zip tie as needed to the rear bumper.
Repeat step 4 using the green wire.
Adhere to the black converter box using the provided double-sided tape.
Secure any loose wires with the provided cable ties.

Step 6
Locate a grounding point such as an existing screw or bolt in the frame of the vehicle or drill a 3/32″pilot hole. The area should be free from rust, dirt, and paint (abrasive pad/paper to remove rust and paint). Secure the white ground wire with the ring terminal on the existing fastener or with the provided ground screw. CURT 16688 Q24 5th Wheel Slider Hitch - Step
5

CAUTION
Check for miscellaneous items that may be hidden behind or under any surface before drilling to avoid damage and/or personal injury
NOTICE
Once the custom wiring 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.

Step 7
Route the 4-flat along the rear bumper and zip tie as needed. Mount the 4-flat close to the receiver tube.
Step 8
Route the black power wire from the vehicle battery as shown on the last page of this manual.
Reinstall all items removed during installation. 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.

POWERED CONVERTER LEAD INSTRUCTION SHEET

NOTICE
Illustrations are for reference only. Battery location may differ depending on the vehicle. WARNING
Route 12 GA wire to vehicle battery location, taking care to avoid any pinch points and hot or rotating components.

WARNING

To avoid personal injury or property damage, check for miscellaneous items that may be behind or under any surface before drilling.

NOTICE

This converter system is to be used only on 12-volt negative ground systems.
Secure power wire to vehicle chassis using cable ties provided.
When passing the power wire through sheet metal, use an existing grommet, add a grommet or use silicone to protect the power wire from sharp edges.
Overall T-connector design may differ from the illustration. The illustration should be used for power lead instruction only. The illustration is not to scale.