CURT 52102 Towed Vehicle RV Wiring Harness Installation Guide

**CURT 52102 Towed Vehicle RV Wiring Harness Installation Guide

**

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)

T5

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 center of rear bumper fascia
T5: Behind passenger side rear bumper

Representative vehicle shown

Tools Required

WARNING

Do not exceed product rating or tow vehicle lamp load rating, whichever is lower.

Be sure not to lay tools a crossed the positive (typically noted with red covers or a red ‘+’ symbol). This can cause a ground to short causing sparks, and / or electrical shocks.

Product Photo

Hardware Photo

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.

Step 1
Locate the vehicles battery(s) in the engine compartment. On diesel trucks, batteries willbe located on both sides of the vehicle. Forgas trucks, battery will typically be on the passenger side. Note: Be sure to test.

Disconnect the negative battery terminal. Be sure to fasten this wire down and away from the battery while completing the installation process.

Step 2
Starting on the rear inside frame rail onthe passengers side of the vehicle. Locate the vehicle taillight wiring connectors. The connectors will be similar to those on your new custom wiring product. Separate the connectors from the taillight housing taking care not to damage the locking tabs. Loosely zip tie wires in place.

Step 3
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.

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 4
On the passenger side, route the 4-flat along and above the frame rail up to the rear of the passengers front tire

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 blindhole and locate it on the other side.
B) Use tape to secure the harness to the fish wire and pull 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.

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 a fish wire down along the inner fender and outer fender. From under the vehicle, pull back the inside of the wheel well lining and locate the fish wire. Attach the 4-flat wire to the fish wire and pull it up into the engine compartment.

Step 6
Route the 4-flat along the passenger-side inner fender to the front of the truck.

Step 8
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 firewall.

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.

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>