Product Details
- Brand: Tekonsha
- Model: 118394 85343 20506 7012A 90885-451267
- Includes: T-One T-Connector Custom Harness, Wiring Adapter, Trailer Brake Controller Installation Kit, Circuit Breaker, Prodigy P2 Proportional Brake Controller for Trailers with 1-4 Axles
Compatibility Chart
Description
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For 2005-2006 Jeep Grand Cherokee 7 Way Trailer Wiring RV 7 Pin 7 Blade + Tekonsha Prodigy P2 Brake Controller By Tekonsha Install Notes
Installation Instructions for T-Connector Adapter
Part Numbers:
- 118394
Tools Required:
- T-20 Torx® Bit and Driver
- Drill with a 3/32” Drill Bit
Step-by-Step Instructions:
-
Remove Rear Taillight Assemblies:
- Open the rear tailgate to access the screws holding the taillights in place.
- Use a T-20 Torx® bit to remove the screws.
- Carefully pry the taillight housings rearward away from the vehicle, ensuring the alignment tabs are not broken.
-
Access Wiring and Disconnect Connectors:
- Locate the black housings that match the T-Connector housings.
- Disconnect the wire harness from both taillight sockets.
- Ensure all connector surfaces are clean and free of dirt.
-
Ground the White Wire:
- Locate a suitable grounding point on the driver’s side near the connectors.
- Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.
- Caution: Verify what is behind any surface before drilling to avoid damage to the vehicle or personal injury. Do not drill into exposed surfaces.
-
Install the T-Connector:
- Beginning on the driver’s side, plug the T-Connector harness containing the yellow wire between the vehicle’s mating connectors.
- Ensure the connectors are fully inserted with locking tabs secured.
-
Route the Wiring Harness:
- Route the harness containing the green wire and the 4-flat connector down through the opening behind the taillight on the driver’s side.
- Route the 4-flat harness to the center of the vehicle and the green wire under the vehicle to the passenger side.
- Bring the green wire up through the opening behind the passenger’s side taillight.
Warning:
- Avoid routing the wire near hot pipes, heat shields, the fuel tank, or any other areas that may pinch or break the wire.
-
Install the Passenger Side T-Connector:
- Repeat step 4 on the passenger’s side using the T-Connector harness containing the green wire.
-
Secure the Wiring and Black Box:
- Use the provided cable ties to secure the wiring harness.
- Mount the converter (black box) inside the driver’s side taillight pocket, below the taillight, and between the vehicle body and bumper.
-
Reinstall the Taillights:
- Reinstall both rear taillights, ensuring all connections are complete and wires are not pinched.
-
Test the Installation:
- Test the T-Connector installation with a test light or trailer to verify proper functionality.
Specifications:
- Max. stop/turn light: 1 per side (2.1 amps).
- Max. tail lights: (5.0 amps).
Safety Notes:
- Overloading circuits can cause fires. Do not exceed the towing manufacturer’s rating or the unit specifications.
- Test thoroughly after installation to ensure proper functionality.
Manufacturer Notes:
- Follow all warnings and installation instructions provided.
- Refer to the vehicle owner’s manual for additional guidance.
Installation Instructions for T-Connector Adapter
Part Numbers:
- 118394
Tools Required:
- T-20 Torx® Bit and Driver
- Drill with a 3/32” Drill Bit
Step-by-Step Instructions:
-
Remove Rear Taillight Assemblies:
- Open the rear tailgate to access the screws holding the taillights in place.
- Use a T-20 Torx® bit to remove the screws.
- Carefully pry the taillight housings rearward away from the vehicle, ensuring the alignment tabs are not broken.
-
Access Wiring and Disconnect Connectors:
- Locate the black housings that match the T-Connector housings.
- Disconnect the wire harness from both taillight sockets.
- Ensure all connector surfaces are clean and free of dirt.
-
Ground the White Wire:
- Locate a suitable grounding point on the driver’s side near the connectors.
- Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.
- Caution: Verify what is behind any surface before drilling to avoid damage to the vehicle or personal injury. Do not drill into exposed surfaces.
-
Install the T-Connector:
- Beginning on the driver’s side, plug the T-Connector harness containing the yellow wire between the vehicle’s mating connectors.
- Ensure the connectors are fully inserted with locking tabs secured.
-
Route the Wiring Harness:
- Route the harness containing the green wire and the 4-flat connector down through the opening behind the taillight on the driver’s side.
- Route the 4-flat harness to the center of the vehicle and the green wire under the vehicle to the passenger side.
- Bring the green wire up through the opening behind the passenger’s side taillight.
Warning:
- Avoid routing the wire near hot pipes, heat shields, the fuel tank, or any other areas that may pinch or break the wire.
-
Install the Passenger Side T-Connector:
- Repeat step 4 on the passenger’s side using the T-Connector harness containing the green wire.
-
Secure the Wiring and Black Box:
- Use the provided cable ties to secure the wiring harness.
- Mount the converter (black box) inside the driver’s side taillight pocket, below the taillight, and between the vehicle body and bumper.
-
Reinstall the Taillights:
- Reinstall both rear taillights, ensuring all connections are complete and wires are not pinched.
-
Test the Installation:
- Test the T-Connector installation with a test light or trailer to verify proper functionality.
Specifications:
- Max. Stop/Turn Light: 2.1 amps per side
- Max. Tail Lights: 5.0 amps
Safety Notes:
- Overloading circuits can cause fires. Do not exceed the towing manufacturer’s rating or the unit specifications.
- Test thoroughly after installation to ensure proper functionality.
Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Installation Instructions for 4-Way to 7-Way Adapter and Brake Control Wiring
Tools Required:
- Phillips Head Screwdriver
- Drill with 3/32" Drill Bit
- 10mm Socket & Ratchet or Wrench
- Wire Crimpers
- Wire Cutters
- Test Light or Multimeter
- Cable Ties
Part 1: Install the 4-Way to 7-Way Adapter
Step-by-Step Instructions:
-
Mount the Adapter:
- Choose a suitable mounting point on the vehicle, typically near the hitch.
- Use the provided bracket and screws to secure the adapter.
-
Connect the 4-Flat Plug:
- Plug the 4-flat connector on the adapter into the existing 4-flat plug on the vehicle.
- This connection enables tail lights, left turn, and right turn signals.
-
Ground the Adapter:
- Locate a clean, solid grounding point near the adapter.
- Drill a 3/32" hole if necessary and secure the white ground wire from the adapter using the provided screw and eyelet.
-
Leave Additional Wires Disconnected:
- The following wires will remain disconnected until Part 2:
- Black Wire: Power from the battery.
- Blue Wire: Brake control output.
- Yellow Wire: Reverse light (optional; leave disconnected unless needed).
- The following wires will remain disconnected until Part 2:
-
Test Initial Connection:
- Use a test light or trailer to verify functionality of the 4-way connections (tail lights, turn signals).
Part 2: Install Brake Control Wiring
Step-by-Step Instructions:
-
Mount Circuit Breakers:
- Install two 30A circuit breakers on the firewall or another suitable location near the battery.
- Use self-tapping screws to mount them securely.
-
Route Power Wires:
- Connect the black 12-gauge wire from the 7-way adapter to the auxiliary side of one circuit breaker (this powers the 7-way socket).
- Run a heavy-gauge wire from the battery's positive terminal to the battery side of this circuit breaker, using a ring terminal.
- Run another heavy-gauge wire from the battery's positive terminal to the auxiliary side of the second circuit breaker (for the brake controller).
-
Install the Brake Controller:
- Mount the brake controller under the dash on a firm surface.
- Use the following connections:
- Red Wire: Connect to the cold side of the brake switch (active only when the brake pedal is pressed).
- Blue Wire: Connect to the blue wire on the 7-way adapter for trailer brakes.
- White Wire: Connect to a solid ground point on the vehicle body.
- Black Wire: Connect to the auxiliary side of the second 30A circuit breaker (provides power to the brake controller).
-
Optional: Connect Reverse Light Circuit:
- If the trailer has a reverse light circuit, connect the yellow wire from the 7-way adapter to the vehicle’s reverse light circuit.
-
Reconnect the Battery:
- Reattach the negative battery cable and ensure all connections are secure.
- Insert the fuses into both circuit breakers.
-
Secure All Wires:
- Use cable ties to secure all loose wires and prevent damage or rattling.
-
Test the System:
- Verify functionality of all circuits (running lights, turn signals, brake lights, and brake controller output).
- If applicable, test the reverse light circuit.
Notes:
- Most installations will only require connecting the black and blue wires from the 7-way adapter.
- Leave the yellow wire disconnected unless the trailer has a reverse light or surge brake lockout circuit.
- Always adhere to safety guidelines and verify all connections before use.
Warning: Incorrect wiring can cause damage to the vehicle or trailer. Test all connections carefully before use.
Installation Instructions for 4-Way to 7-Way Adapter and Brake Control Wiring
Tools Required:
- Phillips Head Screwdriver
- Drill with 3/32" Drill Bit
- 10mm Socket & Ratchet or Wrench
- Wire Crimpers
- Wire Cutters
- Test Light or Multimeter
- Cable Ties
Part 1: Install the 4-Way to 7-Way Adapter
Step-by-Step Instructions:
-
Mount the Adapter:
- Choose a suitable mounting point on the vehicle, typically near the hitch.
- Use the provided bracket and screws to secure the adapter.
-
Connect the 4-Flat Plug:
- Plug the 4-flat connector on the adapter into the existing 4-flat plug on the vehicle.
- This connection enables tail lights, left turn, and right turn signals.
-
Ground the Adapter:
- Locate a clean, solid grounding point near the adapter.
- Drill a 3/32" hole if necessary and secure the white ground wire from the adapter using the provided screw and eyelet.
-
Leave Additional Wires Disconnected:
- The following wires will remain disconnected until Part 2:
- Black Wire: Power from the battery.
- Blue Wire: Brake control output.
- Yellow Wire: Reverse light (optional; leave disconnected unless needed).
- The following wires will remain disconnected until Part 2:
-
Test Initial Connection:
- Use a test light or trailer to verify functionality of the 4-way connections (tail lights, turn signals).
Part 2: Install Brake Control Wiring
Step-by-Step Instructions:
-
Mount Circuit Breakers:
- Install two 30A circuit breakers on the firewall or another suitable location near the battery.
- Use self-tapping screws to mount them securely.
-
Route Power Wires:
- Connect the black 12-gauge wire from the 7-way adapter to the auxiliary side of one circuit breaker (this powers the 7-way socket).
- Run a heavy-gauge wire from the battery's positive terminal to the battery side of this circuit breaker, using a ring terminal.
- Run another heavy-gauge wire from the battery's positive terminal to the auxiliary side of the second circuit breaker (for the brake controller).
-
Install the Brake Controller:
- Mount the brake controller under the dash on a firm surface.
- Use the following connections:
- Red Wire: Connect to the cold side of the brake switch (active only when the brake pedal is pressed).
- Blue Wire: Connect to the blue wire on the 7-way adapter for trailer brakes.
- White Wire: Connect to a solid ground point on the vehicle body.
- Black Wire: Connect to the auxiliary side of the second 30A circuit breaker (provides power to the brake controller).
-
Optional: Connect Reverse Light Circuit:
- If the trailer has a reverse light circuit, connect the yellow wire from the 7-way adapter to the vehicle’s reverse light circuit.
-
Reconnect the Battery:
- Reattach the negative battery cable and ensure all connections are secure.
- Insert the fuses into both circuit breakers.
-
Secure All Wires:
- Use cable ties to secure all loose wires and prevent damage or rattling.
-
Test the System:
- Verify functionality of all circuits (running lights, turn signals, brake lights, and brake controller output).
- If applicable, test the reverse light circuit.
Notes:
- Most installations will only require connecting the black and blue wires from the 7-way adapter.
- Leave the yellow wire disconnected unless the trailer has a reverse light or surge brake lockout circuit.
- Always adhere to safety guidelines and verify all connections before use.
Warning: Incorrect wiring can cause damage to the vehicle or trailer. Test all connections carefully before use.
Attention:
This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Warranty Information:
For complete warranty instructions, please download the full installation PDF.
Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Installation and Operation Instructions for Prodigy P2 Electronic Brake Control
Part Numbers:
- N90885
Specifications:
- Supports 2, 4, 6, and 8 brake applications.
- Proportional braking with inertial sensing for smooth and effective trailer braking.
Tools Required:
- Drill with 1/8" bit.
- Screwdriver.
- Wire crimp tool.
- Wire stripper.
- Circuit tester.
Wiring Access Location:
Not specified.
Safety Notes:
- Keep the control away from RF-generating devices, such as cell phones, within 12 inches.
- The unit supports proportional braking even in reverse.
- Always adhere to the Gross Combined Weight Rating (GCWR) recommended by the vehicle manufacturer.
- Warm trailer brakes before setting power for more accurate adjustments.
- Inspect brakes and connections regularly for safety and performance.
Hardware List:
- Brake control unit.
- Mounting bracket.
- Screws for mounting.
Step-by-Step Instructions:
Mounting the Brake Control:
- Choose a Mounting Location:
- Install on a solid, flat surface.
- The front of the unit must be horizontal within ±20°.
- Attach the Mounting Bracket:
- Secure the bracket using #8 x 3/8" machine screws.
- Install the Brake Control:
- Position the brake control on the bracket and adjust for easy access.
Wiring the Brake Control:
- Black Wire: Connect to a positive 12V battery source.
- White Wire: Connect to the vehicle ground.
- Blue Wire: Connect to the trailer brake system.
- Red Wire: Connect to the cold side of the brake pedal switch.
Initial Power Setup:
- Connect the trailer to the tow vehicle.
- Set the power knob to approximately 6.0.
- Drive on a flat surface at 25 mph and test the manual control.
- Adjust the power to prevent brake lock-up or ensure sufficient stopping force.
Boost Settings:
- Boost Levels:
- [b.1]: For light braking or minimal loads.
- [b.2]: Moderate braking for medium loads.
- [b.3]: Aggressive braking for heavy loads.
- Press the boost button repeatedly to adjust the level. The display will show the current setting.
Troubleshooting Guide:
Problem | Possible Cause | Solution |
---|---|---|
No trailer brakes. | Poor ground or disconnected wires. | Inspect and reconnect wires. |
Brakes lock up. | Power too high. | Lower the power setting. |
Display error. | Overload or short circuit detected. | Check all connections for faults. |
No display or response. | Power interruption or loose connections. | Verify the black wire and connections. |
Maintenance:
- Adjust brakes after the first 200 miles and every 3,000 miles.
- Periodically inspect connections, wires, and the brake control unit.
Warranty Information:
- Limited Warranty:
- Covers defects in materials and workmanship.
- Excludes misuse, improper installation, and overloading.
- For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.