Product Details
- Brand: Tekonsha
- Model: 8507120 3035-296
- Includes: Brakeman IV Time-Delay Brake Controller for Trailers with 1-4 Axles, Trailer Brake Controller Custom Harness
Compatibility Chart
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For 1997-1997 Ford F-250 HD Tekonsha Brakeman IV Brake Control + Plug & Play BC Adapter By Tekonsha Install Notes
Installation Instructions for Electric Trailer Brake Control Wiring Adapter
Part Number: 303500
Tools Required:
- Test Light
Step-by-Step Instructions:
Step 1: Locate the Vehicle’s Electric Brake Control Harness
- Locate the electric brake control harness under the dashboard:
- Near the center console on most vehicles.
- For Ford Full-Size Vans: Underneath and to the left of the steering column.
- For Ford Explorer/Mercury Mountaineer:
- Behind the glove box on the passenger side, or
- Underneath and to the left of the steering column, taped to another harness near the emergency brake pedal.
- Identify the 6-pin connector that matches the adapter’s plug.
Step 2: Verify Battery Power
- Use a test light to probe the connector and verify that battery power is supplied.
- Alternatively, follow the wires from the connector to ensure they are not disconnected behind the instrument panel.
If battery power is present:
- Proceed to Step 4.
If no battery power is present:
- Follow Step 3 to add power.
Step 3: Add Power to the Connector
- Use an electric brake control wiring kit to route the required wires as follows:
- Cut the battery feed wire at the vehicle connector, leaving enough wire to splice.
- Use the supplied butt connector to connect the wiring kit’s battery feed wire to the vehicle harness.
- Cut the trailer brake wire at the vehicle connector, leaving enough wire to splice.
- Connect the wiring kit’s trailer brake wire using the supplied butt connector.
Step 4: Connect the Adapter
- Plug the brake control adapter into the vehicle’s electric brake control harness connector.
- Follow the brake control manufacturer’s installation instructions to wire and mount the brake controller unit.
Step 5: Test the Installation
- Complete the installation as instructed by the brake control manufacturer.
- Perform all test procedures to verify proper operation of the trailer brake system.
Warnings:
- Overloading the Circuit May Cause Fires:
- DO NOT exceed the lower of the following:
- The vehicle manufacturer’s towing rating, or
- Maximum Capacity: 4 axles / 8 brakes (24 amps).
- DO NOT exceed the lower of the following:
- Always read and follow the vehicle owner’s manual and the brake controller installation instructions.
Wiring Overview:
- Battery Feed (Fused): Supplies power to the brake controller.
- Ground: Ensures proper grounding for the brake controller system.
- Stop Lamp Switch (Input): Provides a braking signal to the brake controller.
- Trailer Brake Controller (Output): Sends braking signals to the trailer brakes.
Safety Notes:
- Verify all wiring connections are secure and routed away from:
- Sharp edges
- Hot surfaces
- Moving parts
- Inspect the adapter and wiring periodically for wear or damage.
End of Instructions
Installation Instructions for Electric Trailer Brake Control Wiring Adapter
Part Number: 303500
Tools Required:
- Test Light
Step-by-Step Instructions:
Step 1: Locate the Vehicle’s Electric Brake Control Harness
- Locate the electric brake control harness under the dashboard:
- Near the center console on most vehicles.
- For Ford Full-Size Vans: Underneath and to the left of the steering column.
- For Ford Explorer/Mercury Mountaineer:
- Behind the glove box on the passenger side, or
- Underneath and to the left of the steering column, taped to another harness near the emergency brake pedal.
- Identify the 6-pin connector that matches the adapter’s plug.
Step 2: Verify Battery Power
- Use a test light to probe the connector and verify that battery power is supplied.
- Alternatively, follow the wires from the connector to ensure they are not disconnected behind the instrument panel.
If battery power is present:
- Proceed to Step 4.
If no battery power is present:
- Follow Step 3 to add power.
Step 3: Add Power to the Connector
- Use an electric brake control wiring kit to route the required wires as follows:
- Cut the battery feed wire at the vehicle connector, leaving enough wire to splice.
- Use the supplied butt connector to connect the wiring kit’s battery feed wire to the vehicle harness.
- Cut the trailer brake wire at the vehicle connector, leaving enough wire to splice.
- Connect the wiring kit’s trailer brake wire using the supplied butt connector.
Step 4: Connect the Adapter
- Plug the brake control adapter into the vehicle’s electric brake control harness connector.
- Follow the brake control manufacturer’s installation instructions to wire and mount the brake controller unit.
Step 5: Test the Installation
- Complete the installation as instructed by the brake control manufacturer.
- Perform all test procedures to verify proper operation of the trailer brake system.
Warnings:
- Overloading the Circuit May Cause Fires:
- DO NOT exceed the lower of the following:
- The vehicle manufacturer’s towing rating, or
- Maximum Capacity: 4 axles / 8 brakes (24 amps).
- DO NOT exceed the lower of the following:
- Always read and follow the vehicle owner’s manual and the brake controller installation instructions.
Wiring Overview:
- Battery Feed (Fused): Supplies power to the brake controller.
- Ground: Ensures proper grounding for the brake controller system.
- Stop Lamp Switch (Input): Provides a braking signal to the brake controller.
- Trailer Brake Controller (Output): Sends braking signals to the trailer brakes.
Safety Notes:
- Verify all wiring connections are secure and routed away from:
- Sharp edges
- Hot surfaces
- Moving parts
- Inspect the adapter and wiring periodically for wear or damage.
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.
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 Electronic Brake Control
Part Numbers:
- Included Brake Control Unit: Part Number N8507120
Tools Required:
- Drill with 1/8" bit.
- Screwdriver or 1/4" nut driver.
- Wire connector crimp tool.
- Probe-type circuit tester.
- Assorted end wrenches.
- Wire cutter/stripper.
Safety Notes:
- Ensure the area behind the panel is clear before drilling.
- Follow all instructions to prevent damage to the unit or injury during installation.
- Avoid using RF-generating devices closer than 12 inches to the brake control.
- Always verify proper electrical connections.
Hardware List:
- Brake Control Unit.
- Mounting Bracket.
- (4) Mounting Screws.
- Additional Materials Required:
- 10 Ga. wire.
- 30 Amp auto-reset circuit breaker.
- Assorted ring terminal & butt connectors.
- 4" cable ties (6-10).
Installation Instructions:
Mounting the Unit:
- Choose a Suitable Location:
- Ensure a secure, solid surface.
- Ensure the unit is within easy reach of the driver.
- Verify the area behind the panel is clear.
- Mark and Drill Holes:
- Use the bracket as a template to mark hole locations.
- Drill two 1/8" diameter holes.
- Attach the Bracket:
- Secure the bracket using two self-tapping screws provided.
- Avoid over-tightening to prevent damage to the holes.
- Mount the Brake Control Unit:
- Attach the control unit to the bracket with the remaining screws.
Wiring and Connections:
- Black Wire: Connect to the vehicle's power supply.
- Red Wire: Connect to the stoplight signal.
- White Wire: Connect to the vehicle's ground.
- Blue Wire: Connect to the trailer brakes.
Initial Setup:
- With the trailer connected, press and hold the brake pedal.
- Adjust the Output (Gain) Control to approximately 2.0 using the digital display.
- Adjust the Sync Control to a setting of 4°.
- Test the brake application by driving in an open area and using the manual slide control.
Sync and Output (Gain) Adjustments:
- Sync Control: Adjust the aggressiveness of trailer braking.
- Sync settings range from 0° (least aggressive) to 9° (most aggressive).
- Output (Gain) Control: Adjust the maximum power delivered to the brakes.
- Output ranges from 0 to 10, with 10 being maximum braking power.
Testing and Fine-Tuning:
- Conduct a test drive at low speeds in a clear area.
- Use the Manual Slide Control to apply trailer brakes and adjust the Gain as needed.
- Verify smooth stops without jerking or locking the brakes.
- Adjust Sync settings for road conditions and driver preferences.
Maintenance:
- Regularly inspect all connections and wires for damage or wear.
- Keep the unit clean and free of debris.
- Periodically check and tighten all mounting screws.
Troubleshooting Guide:
Condition | Probable Cause | Solution |
---|---|---|
No trailer brakes. | No power or incorrect wiring. | Check power and ground connections. |
Weak trailer braking. | Low Output (Gain) setting. | Increase the Gain setting. |
Brakes lock when applied. | High Output (Gain) setting. | Decrease the Gain setting. |
Display shows "OL" when active. | Short in the blue wire circuit. | Locate and correct the short. |
Display shows "Er". | Internal brake control issue. | Refer to the full installation PDF for guidance. |
Warranty Information:
- Limited Lifetime Warranty:
- Covers defects in materials and workmanship.
- Excludes damage caused by misuse or improper installation.
- 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.