CURT ECN9350 Vehicle Side Custom 4 Pin Trailer Wiring Instruction Manual

CURT ECN9350 Vehicle Side Custom 4 Pin Trailer Wiring

Product Information

• Product Name: Custom Wiring Kit
• Installation Difficulty: Easy
• Electrical Ratings:
  • Signal Circuits: 3.0 amps per side
  • Tail/Running Circuits: 6.0 amps total
• Wiring Locations for SUVs and Vans:
  • S1: Behind driver-side taillight housing
  • S2: Behind passenger side taillight housing
  • S3: Behind the driver-side rear access panel
  • S4: Behind the passenger side rear access panel
  • S5: Behind the driver-side rear bumper
  • S6: Behind the center of the rear bumper
  • S7: Behind the passenger side rear bumper
  • S8: Under the rear floor panel
  • S9: Behind driver-side rear access panel
  • S10: Behind the passenger side rear access panel
• Required Tools:
  • Ratchet
  • Socket extension
  • T-27 Torx bit
  • Flathead screwdriver
  • Cutting tool
  • Wire crimper
  • Wire stripper
  • Electrical tape
• Maintenance: Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections.

Product Usage Instructions

1. Before you begin the installation, read all instructions thoroughly.
2. Locate the vehicle battery and disconnect the negative battery terminal. Fasten the wire down and away from the battery during the installation process.
3. Open the rear hatch and locate the taillight trim cover. Use a flathead screwdriver to open the taillight fastener covers and a T-27 torx bit to remove the screws. Be careful not to lose the screws between the trim and taillight or have them fall through to the floor.
4. Pull the taillight straight back to remove it. Locate the vehicle taillight wiring connectors and separate them from the taillight housing without damaging the locking tabs. Set the taillight aside. Repeat this step on the other side of the vehicle.
5. Route a fish wire down between the bumper cover and the body of the vehicle. Repeat this step on the other side of the vehicle.

How to Fishwire:
Fish wire is a way to push or pull an electrical wire through a blind hole. Follow these steps:

• Ensure that the fish wire is long enough to stick out on the other side of the blind hole.
• Insert the fish wire through the blind hole and locate it on the other side.

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, the condition of the vehicle and the proper tools and equipment.

Electrical Ratings

• Signal circuits 3.0-amps per side
• Tail / Running Circuits 6.0-amps total

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

Wiring Location(s)

• S1 and S2

**Wiring Location Guide* for SUVs and Vans (S)**

S1| Behind driver-side taillight housing
S2| Behind the passenger side taillight housing
S3| Behind driver-side rear access panel
S4| Behind the passenger side rear access panel
S5| Behind driver side rear bumper
S6| Behind the center of the rear bumper
S7| Behind the passenger side rear bumper
S8| Under the rear floor panel
S9| Behind driver-side rear access panel
S10| Behind the passenger side rear access panel

• Representative vehicle shown

Tools Required

• Ratchet Cutting tool
• Socket extension Wire crimper
• Torx bit, T-27 Wire stripper
• Flathead screwdriver Electrical tape

WARNING

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

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.

INSTALLATION

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 rear hatch and locate the taillight trim cover. Use a flathead screwdriver to open the taillight fastener covers and use a T-27 torx bit to remove the screws. (Be careful to not lose the screws between the trim and taillight and the fasteners could be above the bumper or fall through to the floor).

Step 3

• Remove the taillight by pulling straight back. 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. Set the taillight aside
• Repeat on the other side of the vehicle.

Step 4

Route a fish wire down between the bumper cover and the body of the vehicle. Repeat this step on the other side of the vehicle.
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.
• 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

• Starting on the driver side, locate the housing with the yellow wire on the custom wiring harness. From under the vehicle bumper, attach this to the fish wire and pull the harness up to the taillight cavity. Attach the custom wiring harness to the vehicle factory wiring and attach to the taillight. Set the taillight inside the taillight cavity but do not completely install.

Step 6

• Route the housing with the green wire above the bumper mount and along the bumper to the passenger side. Zip tie as needed along the bumper. The route above the passenger-side bumper mount.
• Repeat step 6 to the housing with the green wire.

Step 7

• On the driver side, 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

Step 8

• Locate a flat spot on the vehicle. Adhere the black converter box using the provided double-sided tape and / or zip ties. Follow the instructions on the last page of this manual to connect power and test.

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.

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 i tems that may be behind or under any surface before drilling

NOTICE

1. This converter system is to be used only on 12-volt negative ground systems.
2. Secure power wire to vehicle chassis using cable ties provided.
3. 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.
4. Overall T-connector design may differ from illustration. The illustration should be used for power lead instruction only. Illustration is not to scale.

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