Product Details
- Brand: Tekonsha
- Model: 118325 74184 8506020 20212 80550 8506920-297744
- Includes: T-One T-Connector Custom Harness, Wiring Adapter, Trailer Brake Controller Installation Kit, Mounting Bracket, Pilot Trailer Time-Delay Brake Controller for Trailers with 1-3 Axles, Trailer Brake Controller Universal Harness
Compatibility Chart
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For 1993-1999 Ford Ranger 7 Way Trailer Wiring RV 7 Pin 7 Blade + Pro Series Pilot Brake Controller + Wiring Adapter By Tekonsha Install Notes
Installation Instructions for T-Connector Adapter
Part Numbers:
- 118325
Wiring Access Location:
- Inside the left rear frame rail of the vehicle.
Tools Required:
- Tie strap (provided in the kit).
Step-by-Step Instructions:
-
Locate the vehicle’s taillight wiring harness along the inside of the left rear frame rail.
- This harness will have a connection point with connectors matching the ends of the T-Connector adapter.
-
Separate the harness connectors.
- Note: Be careful not to break the locking tabs.
- Ensure that the mating surfaces of the connectors are free of dirt and clean them if necessary.
-
Insert the T-Connector adapter between the harness connectors and lock into place.
- Verify that the connectors are fully inserted with locking tabs secure.
-
Route the T-Connector harness to the center of the vehicle.
- Secure the black box to the bumper bracket or another mounting point using the tie strap provided.
-
Test the installation with a test light or trailer.
- Specifications:
- This unit is rated for 4 amps per circuit.
- Specifications:
Hardware List:
- T-Connector adapter.
- Black box.
- Tie strap.
Safety Notes:
- Handle all connectors with care to avoid damage.
- Ensure all connections are clean and securely fastened.
- Test the installation after completing all steps to verify functionality.
Manufacturer Notes:
- Follow all warnings and instructions provided with the product.
- Use a test light or trailer to confirm proper installation.
Installation Instructions for T-Connector Adapter
Part Numbers:
- 118325
Wiring Access Location:
- Inside the left rear frame rail of the vehicle.
Tools Required:
- Tie strap (provided in the kit)
Step-by-Step Instructions:
-
Locate the Vehicle’s Taillight Wiring Harness:
- Locate the taillight wiring harness along the inside of the left rear frame rail.
- This harness will have a connection point with connectors matching the ends of the T-Connector adapter.
-
Separate the Harness Connectors:
- Note: Be careful not to break the locking tabs.
- Ensure that the mating surfaces of the connectors are free of dirt and clean them if necessary.
-
Insert the T-Connector Adapter:
- Insert the T-Connector adapter between the harness connectors and lock it into place.
- Verify that the connectors are fully inserted with locking tabs secure.
-
Route the T-Connector Harness:
- Route the T-Connector harness to the center of the vehicle.
- Secure the black box to the bumper bracket or another mounting point using the provided tie strap.
-
Test the Installation:
- Test the installation with a test light or trailer to ensure all connections function properly.
Specifications:
- Maximum Current Rating: 4 amps per circuit
Hardware List:
- T-Connector adapter
- Black box
- Tie strap
Safety Notes:
- Handle all connectors with care to avoid damage.
- Ensure all connections are clean and securely fastened.
- Test the installation after completing all steps to verify functionality.
Additional Information:
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.
Warranty Information:
For complete warranty instructions, please download the full installation PDF.
Note: Follow all warnings and instructions provided with the product. Use a test light or trailer to confirm proper installation.
Installation Instructions for 4-Way to 7-Way Adapter and Brake Control Wiring (Economy Version)
Tools Required:
- Phillips Head Screwdriver
- Drill with 3/32" Drill Bit
- 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 near the hitch.
- Use a bracket (sold separately) to secure the adapter.
-
Connect the 4-Flat Plug:
- Plug the 4-flat connector from the adapter into the existing 4-flat plug on the vehicle.
- This connection provides tail lights, left turn, and right turn functions.
-
Ground the Adapter:
- Locate a solid grounding point near the adapter (e.g., frame or cross member).
- Clean the area to ensure good contact and secure the large white wire with the provided eyelet and screw.
-
Leave Additional Wires Disconnected:
- The blue wire (brake control) will remain disconnected at this stage.
- No additional power or reverse light connections are included with this economy kit.
-
Test Initial Connection:
- Verify functionality of the 4-way circuits (tail lights and turn signals) using a test light or trailer.
Part 2: Install the Brake Control Wiring Kit
Wire Functions:
- Red Wire: Connects to the cold side of the stoplight switch (active only when the brake pedal is pressed).
- Black Wire: Connects to the battery (+) via the 20A in-line fuse.
- White Wire: Ground (-) to the vehicle frame or negative battery terminal.
- Blue Wire: Connects to the blue wire from the 7-way adapter for trailer brakes.
Step-by-Step Instructions:
-
Disconnect the Battery:
- Disconnect the negative (-) battery cable before beginning installation.
-
Mount the Brake Controller:
- Secure the brake controller under the dash on a firm surface within reach of the driver.
-
Route and Connect Wires:
- Red Wire:
- Locate the stoplight switch under the dashboard.
- Use the provided wire tap to connect the red wire to the cold side of the stoplight switch.
- Black Wire:
- Connect one end of the black wire to the positive battery terminal using a ring terminal.
- Insert the provided 20A in-line fuse between the battery and the brake controller.
- White Wire:
- Connect the white wire to a solid ground point on the vehicle’s chassis or directly to the negative battery terminal.
- Blue Wire:
- Route the blue wire to the 7-way adapter and connect it to the blue wire from the adapter.
- Red Wire:
-
Secure the Wiring:
- Use cable ties to secure all wires, avoiding hot or moving parts.
- Pass wires through existing grommets or add a grommet/silicone to insulate wires passing through metal surfaces.
-
Reconnect the Battery:
- Reattach the negative (-) battery cable.
-
Test the System:
- Verify functionality of the brake controller using a trailer or test light.
- Ensure proper brake signal is sent to the trailer.
Notes:
- This economy kit does not include a dedicated power circuit for accessories or battery charging via the 7-way connector.
- The blue wire from the 7-way adapter is used exclusively for trailer brake control.
- Always verify all connections before use and follow safety guidelines during installation.
Warning: Improper installation or overloaded circuits can result in damage or fire. Test all connections carefully.
Installation Instructions for 4-Way to 7-Way Adapter and Brake Control Wiring (Economy Version)
Tools Required:
- Phillips Head Screwdriver
- Drill with 3/32" Drill Bit
- 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 near the hitch.
- Use a bracket (sold separately) to secure the adapter.
-
Connect the 4-Flat Plug:
- Plug the 4-flat connector from the adapter into the existing 4-flat plug on the vehicle.
- This connection provides tail lights, left turn, and right turn functions.
-
Ground the Adapter:
- Locate a solid grounding point near the adapter (e.g., frame or cross member).
- Clean the area to ensure good contact and secure the large white wire with the provided eyelet and screw.
-
Leave Additional Wires Disconnected:
- The blue wire (brake control) will remain disconnected at this stage.
- No additional power or reverse light connections are included with this economy kit.
-
Test Initial Connection:
- Verify functionality of the 4-way circuits (tail lights and turn signals) using a test light or trailer.
Part 2: Install the Brake Control Wiring Kit
Wire Functions:
- Red Wire: Connects to the cold side of the stoplight switch (active only when the brake pedal is pressed).
- Black Wire: Connects to the battery (+) via the 20A in-line fuse.
- White Wire: Ground (-) to the vehicle frame or negative battery terminal.
- Blue Wire: Connects to the blue wire from the 7-way adapter for trailer brakes.
Step-by-Step Instructions:
-
Disconnect the Battery:
- Disconnect the negative (-) battery cable before beginning installation.
-
Mount the Brake Controller:
- Secure the brake controller under the dash on a firm surface within reach of the driver.
-
Route and Connect Wires:
- Red Wire:
- Locate the stoplight switch under the dashboard.
- Use the provided wire tap to connect the red wire to the cold side of the stoplight switch.
- Black Wire:
- Connect one end of the black wire to the positive battery terminal using a ring terminal.
- Insert the provided 20A in-line fuse between the battery and the brake controller.
- White Wire:
- Connect the white wire to a solid ground point on the vehicle’s chassis or directly to the negative battery terminal.
- Blue Wire:
- Route the blue wire to the 7-way adapter and connect it to the blue wire from the adapter.
- Red Wire:
-
Secure the Wiring:
- Use cable ties to secure all wires, avoiding hot or moving parts.
- Pass wires through existing grommets or add a grommet/silicone to insulate wires passing through metal surfaces.
-
Reconnect the Battery:
- Reattach the negative (-) battery cable.
-
Test the System:
- Verify functionality of the brake controller using a trailer or test light.
- Ensure proper brake signal is sent to the trailer.
Notes:
- This economy kit does not include a dedicated power circuit for accessories or battery charging via the 7-way connector.
- The blue wire from the 7-way adapter is used exclusively for trailer brake control.
- Always verify all connections before use and follow safety guidelines during installation.
Warning: Improper installation or overloaded circuits can result in damage or fire. Test all connections carefully.
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 Instructions for Brake Control Plugin Wiring Harness (Part 20127/8506920)
Tools Required:
- Wire Stripper & Cutter
- Pliers
Overview:
This brake control plugin wiring harness is designed for quick and secure connections to your brake controller. It simplifies installation by matching functions and connecting to the corresponding wires in your vehicle.
Step-by-Step Instructions:
-
Disconnect the Battery:
- Before beginning, disconnect the battery terminals to prevent electrical shorts or damage.
-
Connect the Wires:
- Refer to the following chart to match the harness wires to their functions:
- Black Wire: Battery Positive (+)
- Red Wire: Stoplight Signal (active when the brake pedal is pressed)
- White Wire: Ground (-)
- Blue Wire: Output to Trailer Brakes
- Use the appropriate connectors to secure each wire, ensuring a solid connection.
- Refer to the following chart to match the harness wires to their functions:
-
Secure the Wiring Harness:
- Mount the wiring harness under the dashboard or another safe location, keeping it away from moving parts or sharp edges.
-
Plug in the Brake Controller:
- Insert the wiring harness connector into the brake controller, ensuring it clicks securely into place.
-
Reconnect the Battery:
- Reattach the battery terminals, ensuring they are clean and tightly connected.
-
Test the System:
- Use a test light, circuit tester, or trailer to verify all functions:
- The brake controller powers on.
- The manual override activates the trailer brakes.
- Stoplight signals and trailer brakes function properly when the brake pedal is pressed.
- Use a test light, circuit tester, or trailer to verify all functions:
Notes:
- Always connect wires based on function, not color, to ensure proper operation.
- Consult your vehicle manual for fuse locations related to the brake control system.
- Verify all connections are secure and tested before use.
Warning:
- All connections must be complete for the system to function properly.
- Overloading circuits can cause damage or fire. Do not exceed the lower of the towing manufacturer’s ratings or:
- Max. Right Turn, Left Turn, Stop, & Tail Light Circuits: 7.5 amps
- Max. (+) Battery, Reverse, and Electric Brake Circuits: 30 amps
- Refer to your vehicle’s owner’s manual for additional instructions. Additional fusing may be required.
For safe towing and optimal performance, ensure all connections are properly secured and tested.
Installation Instructions for Brake Control Plugin Wiring Harness (Part 20127/8506920)
Tools Required:
- Wire Stripper & Cutter
- Pliers
Overview:
This brake control plugin wiring harness is designed for quick and secure connections to your brake controller. It simplifies installation by matching functions and connecting to the corresponding wires in your vehicle.
Step-by-Step Instructions:
-
Disconnect the Battery:
- Before beginning, disconnect the battery terminals to prevent electrical shorts or damage.
-
Connect the Wires:
- Refer to the following chart to match the harness wires to their functions:
- Black Wire: Battery Positive (+)
- Red Wire: Stoplight Signal (active when the brake pedal is pressed)
- White Wire: Ground (-)
- Blue Wire: Output to Trailer Brakes
- Use the appropriate connectors to secure each wire, ensuring a solid connection.
- Refer to the following chart to match the harness wires to their functions:
-
Secure the Wiring Harness:
- Mount the wiring harness under the dashboard or another safe location, keeping it away from moving parts or sharp edges.
-
Plug in the Brake Controller:
- Insert the wiring harness connector into the brake controller, ensuring it clicks securely into place.
-
Reconnect the Battery:
- Reattach the battery terminals, ensuring they are clean and tightly connected.
-
Test the System:
- Use a test light, circuit tester, or trailer to verify all functions:
- The brake controller powers on.
- The manual override activates the trailer brakes.
- Stoplight signals and trailer brakes function properly when the brake pedal is pressed.
- Use a test light, circuit tester, or trailer to verify all functions:
Notes:
- Always connect wires based on function, not color, to ensure proper operation.
- Consult your vehicle manual for fuse locations related to the brake control system.
- Verify all connections are secure and tested before use.
Warning:
- All connections must be complete for the system to function properly.
- Overloading circuits can cause damage or fire. Do not exceed the lower of the towing manufacturer’s ratings or:
- Max. Right Turn, Left Turn, Stop, & Tail Light Circuits: 7.5 amps
- Max. (+) Battery, Reverse, and Electric Brake Circuits: 30 amps
- Refer to your vehicle’s owner’s manual for additional instructions. Additional fusing may be required.
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.
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.
Revision:
20127/8506920 Rev. A 2-6-07
Installation Instructions for Electronic Brake Control
Part Number: N80550
Components of the Brake Control:
- A. Power Knob
- B. Manual Slide Knob
- C. Anchor and Pivot Holes
- D. Two-Digit Power Display
- E. Optional Ball Mount Interface
Tools Required:
- Phillips Screwdriver
- Drill (Optional)
- Standard Adjusting Tool or Screwdriver
Important Notes:
- Do not mount or activate RF-generating devices (e.g., cell phones, radios) within 12 inches of the Brake Control.
- CAUTION: Reversing the connection to a breakaway battery on the trailer will destroy the Brake Control.
- Always disconnect the trailer plug before testing a breakaway switch to prevent damage to the Brake Control.
- WARNING: Ensure that the Gross Combined Weight Rating (GCWR) never exceeds the vehicle manufacturer’s recommendation.
- The Brake Control is specifically designed for use with electric trailer brakes.
Installation Steps:
Step 1: Mounting the Brake Control
- Select a solid surface under the dashboard for installation.
- Secure the mounting bracket using the provided #6 x 3/8" screws.
- Insert screws into the mounting holes (C) and adjust the Brake Control to the desired position.
- Tighten screws until snug.
Step 2: Connect the Wiring
- Connect the White Wire to the vehicle’s ground.
- Connect the Black Wire to the vehicle’s battery.
- Connect the Red Wire to the brake signal switch.
- Connect the Blue Wire to the trailer brake output.
Step 3: Adjust the Power to the Trailer Brakes
- Connect the trailer to the tow vehicle.
- Locate the Manual Slide Knob and Power Knob.
- Apply the Manual Slide Knob and turn the Power Knob until the display reads 4.0.
- Drive the vehicle with the trailer at 25 mph on a dry, level, paved surface.
- Apply the Manual Slide Knob:
- If the trailer brakes lock up: Turn the Power Knob down.
- If the braking is insufficient: Turn the Power Knob up.
- Repeat Step 5 until the power is just below wheel lock-up or at sufficient braking force.
Troubleshooting Guide:
Situation 1: No Display When Brakes Are Applied
- Cause: Poor connection on Power (Black Wire) or Ground (White Wire).
Situation 2: Display Reads Incorrectly
- Cause: Corrosion on the trailer plug or poor connection on the Brake Line (Blue Wire).
Situation 3: Braking is Too Aggressive
- Cause: Power is set too high.
Situation 4: Braking is Too Light
- Cause: Power is set too low.
Optional Mounting Ball Installation (Purchased Separately):
- Find a desired location and attach the mounting ball using double-sided tape.
- Drill three 1/16” holes for the screws.
- Secure the mounting ball with the provided #6 x 3/8" screws.
- Attach the Brake Control to the mounting ball using the mounting screw and foam gasket.
- Adjust the Brake Control to the desired position and tighten securely.
Changing the Display Orientation:
-
To Flip Display Upside Down:
- Connect the White, Red, and Blue Wires to the tow vehicle.
- While pressing the Manual Slide Knob or Brake Pedal, connect the Black Wire to the vehicle battery.
- The display will now be upside down.
-
To Reset Display to Right-Side Up:
- Disconnect the Black Wire from the battery.
- Wait 5 seconds.
- Reconnect the Black Wire without applying the brake pedal or Manual Slide Knob.
Brake Adjustment (Courtesy of Dexter Axle):
- Jack up the trailer and secure it on jack stands.
- Remove the adjusting hole cover on the brake backing plate.
- Use an adjusting tool to expand the brake shoes until the wheel is difficult to turn.
- Back off the adjuster until the wheel turns freely with slight lining drag.
- Repeat for all wheels.
End of Instructions
Installation Instructions for Electronic Brake Control
Part Number: N80550
Components of the Brake Control:
- A. Power Knob
- B. Manual Slide Knob
- C. Anchor and Pivot Holes
- D. Two-Digit Power Display
- E. Optional Ball Mount Interface
Tools Required:
- Phillips Screwdriver
- Drill (Optional)
- Standard Adjusting Tool or Screwdriver
Important Notes:
- Do not mount or activate RF-generating devices (e.g., cell phones, radios) within 12 inches of the Brake Control.
- CAUTION: Reversing the connection to a breakaway battery on the trailer will destroy the Brake Control.
- Always disconnect the trailer plug before testing a breakaway switch to prevent damage to the Brake Control.
- WARNING: Ensure that the Gross Combined Weight Rating (GCWR) never exceeds the vehicle manufacturer’s recommendation.
- The Brake Control is specifically designed for use with electric trailer brakes.
Installation Steps:
Step 1: Mounting the Brake Control
- Select a solid surface under the dashboard for installation.
- Secure the mounting bracket using the provided #6 x 3/8" screws.
- Insert screws into the mounting holes (C) and adjust the Brake Control to the desired position.
- Tighten screws until snug.
Step 2: Connect the Wiring
- Connect the White Wire to the vehicle’s ground.
- Connect the Black Wire to the vehicle’s battery.
- Connect the Red Wire to the brake signal switch.
- Connect the Blue Wire to the trailer brake output.
Step 3: Adjust the Power to the Trailer Brakes
- Connect the trailer to the tow vehicle.
- Locate the Manual Slide Knob and Power Knob.
- Apply the Manual Slide Knob and turn the Power Knob until the display reads 4.0.
- Drive the vehicle with the trailer at 25 mph on a dry, level, paved surface.
- Apply the Manual Slide Knob:
- If the trailer brakes lock up: Turn the Power Knob down.
- If the braking is insufficient: Turn the Power Knob up.
- Repeat Step 5 until the power is just below wheel lock-up or at sufficient braking force.
Troubleshooting Guide:
Situation 1: No Display When Brakes Are Applied
- Cause: Poor connection on Power (Black Wire) or Ground (White Wire).
Situation 2: Display Reads Incorrectly
- Cause: Corrosion on the trailer plug or poor connection on the Brake Line (Blue Wire).
Situation 3: Braking is Too Aggressive
- Cause: Power is set too high.
Situation 4: Braking is Too Light
- Cause: Power is set too low.
Optional Mounting Ball Installation (Purchased Separately):
- Find a desired location and attach the mounting ball using double-sided tape.
- Drill three 1/16” holes for the screws.
- Secure the mounting ball with the provided #6 x 3/8" screws.
- Attach the Brake Control to the mounting ball using the mounting screw and foam gasket.
- Adjust the Brake Control to the desired position and tighten securely.
Changing the Display Orientation:
-
To Flip Display Upside Down:
- Connect the White, Red, and Blue Wires to the tow vehicle.
- While pressing the Manual Slide Knob or Brake Pedal, connect the Black Wire to the vehicle battery.
- The display will now be upside down.
-
To Reset Display to Right-Side Up:
- Disconnect the Black Wire from the battery.
- Wait 5 seconds.
- Reconnect the Black Wire without applying the brake pedal or Manual Slide Knob.
Brake Adjustment (Courtesy of Dexter Axle):
- Jack up the trailer and secure it on jack stands.
- Remove the adjusting hole cover on the brake backing plate.
- Use an adjusting tool to expand the brake shoes until the wheel is difficult to turn.
- Back off the adjuster until the wheel turns freely with slight lining drag.
- Repeat for all wheels.
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.
Warranty:
The product comes with a [X]-year warranty that covers defects in materials and workmanship. For complete warranty instructions, please download the full installation PDF.