Product Details
- Brand: Reese
- Model: 74377 3034-7a
- Includes: POD Trailer Time-Delay Brake Controller for Trailers with 1-2 Axles, Trailer Brake Controller Custom Harness
Compatibility Chart
Description
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Reese POD Trailer Brake Control for 09-20 Ford E-150 E-250 E-350 E-450 Electric Trailer Brakes Module Box Controller 1-2 Axle Install Notes
Installation Instructions for Electric Trailer Brake Control Wiring Adapter
Part Number: 303400
Tools Required:
- Trim Panel Remover
- Flashlight
Step-by-Step Instructions:
Step 1: Preparation
- Make sure the vehicle is off, and the keys are removed from the ignition.
Step 2: Remove the Access Panel
- Locate the access panel in the center of the dash on the passenger side.
- Use a trim panel puller to carefully pry the panel away from the dash:
- Insert the tool at the notch in the panel.
- Avoid damaging the trim or panel.
- Unplug any housings attached to the panel.
- Be careful not to damage the locking tabs.
- Set the panel aside.
Step 3: Identify the Connector
-
If the vehicle has a factory-installed brake controller:
- Locate the large grey housing plugged into the back of the unit.
- You may need to disconnect additional harnesses to access the location.
NOTE: Disconnecting the factory-installed brake control may cause a fault code to display on the dash message center.
-
If the vehicle does not have a factory brake controller:
- Locate the grey housing on the back of the trim panel directly left of the access panel.
Step 4: Install the Brake Control Adapter
- Carefully pull the grey housing toward the access panel opening.
- Plug in the brake control adapter housing.
Step 5: Route the Adapter
- Locate a routing path for the adapter to exit the bottom of the dashboard:
- Use a flashlight to shine light through the bottom of the dash to find an exit hole.
- Route the adapter securely through the opening.
Step 6: Complete Installation
- Complete the installation per the brake controller manufacturer’s instructions.
- Mount the brake controller unit securely as directed.
- Perform the test procedures provided in the brake controller manual.
Step 7: Reassemble
- Plug any unused connectors back into their original housings.
- Snap the access panel back into place.
Notes:
- Vehicles not equipped with an OEM trailer tow package may require additional fuses and relays to complete the output and battery feed circuits.
- These components are sold separately.
- Refer to the vehicle owner’s manual for fuse and relay locations.
Safety Warnings:
- Overloading the Circuit Can Cause Fires:
- DO NOT exceed the lower of the following:
- Manufacturer’s towing rating, or
- Maximum Capacity: 3 axles / 6 brakes (18 amps).
- DO NOT exceed the lower of the following:
- Carefully follow all vehicle warnings and safety precautions.
- Always read and follow the vehicle owner’s manual and brake controller instructions.
Wiring Overview:
- Trailer Brake Controller (Output): Sends braking signal to the trailer brakes.
- Fused Battery Feed: Supplies power to the brake controller.
- Stop Lamp Switch (Input): Provides braking signal from the vehicle.
- Ground: Connects the controller to the vehicle chassis.
Final Notes:
- Inspect the adapter and connections periodically for wear or damage.
- Ensure all wires are routed away from sharp edges, hot surfaces, and moving parts.
End of Instructions
Installation Instructions for Electric Trailer Brake Control Wiring Adapter
Part Number: 303400
Tools Required:
- Trim Panel Remover
- Flashlight
Step-by-Step Instructions:
Step 1: Preparation
- Make sure the vehicle is off, and the keys are removed from the ignition.
Step 2: Remove the Access Panel
- Locate the access panel in the center of the dash on the passenger side.
- Use a trim panel puller to carefully pry the panel away from the dash:
- Insert the tool at the notch in the panel.
- Avoid damaging the trim or panel.
- Unplug any housings attached to the panel.
- Be careful not to damage the locking tabs.
- Set the panel aside.
Step 3: Identify the Connector
-
If the vehicle has a factory-installed brake controller:
- Locate the large grey housing plugged into the back of the unit.
- You may need to disconnect additional harnesses to access the location.
NOTE: Disconnecting the factory-installed brake control may cause a fault code to display on the dash message center.
-
If the vehicle does not have a factory brake controller:
- Locate the grey housing on the back of the trim panel directly left of the access panel.
Step 4: Install the Brake Control Adapter
- Carefully pull the grey housing toward the access panel opening.
- Plug in the brake control adapter housing.
Step 5: Route the Adapter
- Locate a routing path for the adapter to exit the bottom of the dashboard:
- Use a flashlight to shine light through the bottom of the dash to find an exit hole.
- Route the adapter securely through the opening.
Step 6: Complete Installation
- Complete the installation per the brake controller manufacturer’s instructions.
- Mount the brake controller unit securely as directed.
- Perform the test procedures provided in the brake controller manual.
Step 7: Reassemble
- Plug any unused connectors back into their original housings.
- Snap the access panel back into place.
Notes:
- Vehicles not equipped with an OEM trailer tow package may require additional fuses and relays to complete the output and battery feed circuits.
- These components are sold separately.
- Refer to the vehicle owner’s manual for fuse and relay locations.
Safety Warnings:
- Overloading the Circuit Can Cause Fires:
- DO NOT exceed the lower of the following:
- Manufacturer’s towing rating, or
- Maximum Capacity: 3 axles / 6 brakes (18 amps).
- DO NOT exceed the lower of the following:
- Carefully follow all vehicle warnings and safety precautions.
- Always read and follow the vehicle owner’s manual and brake controller instructions.
Wiring Overview:
- Trailer Brake Controller (Output): Sends braking signal to the trailer brakes.
- Fused Battery Feed: Supplies power to the brake controller.
- Stop Lamp Switch (Input): Provides braking signal from the vehicle.
- Ground: Connects the controller to the vehicle chassis.
Final Notes:
- Inspect the adapter and connections periodically for wear or damage.
- Ensure all wires are routed away from sharp edges, hot surfaces, and moving parts.
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 Instructions for Electronic Brake Control (2 to 4 Brake Systems)
Product Information:
- Part Number: N74377
Components of the Brake Control:
- A: Power Knob
- B: Manual Slide Knob
- C: Bracket Mounting Holes
- D: Bi-Colored Light
Tools Required:
- Drill with 1/8" Drill Bit
- Screwdriver
- Wire Cutter/Stripper
- Wire Crimping Tool
- Circuit Tester
Mounting Instructions:
-
Select the Mounting Location:
- Choose a solid surface within reach of the driver.
- Ensure no wires or components are behind the panel.
-
Install the Mounting Bracket:
- Hold the bracket in place and mark the holes using the bracket’s slots.
- Drill two 1/8" holes at the marked positions.
- Secure the bracket using #6 x 3/8" screws provided.
-
Attach the Brake Control:
- Slide the Brake Control into the bracket.
- Adjust to the desired position and tighten the screws until snug.
Wiring Instructions:
- Black Wire: Connect to the 12V positive terminal of the battery via a 20A circuit breaker.
- White Wire: Connect to a clean, bare metal ground on the vehicle chassis.
- Red Wire: Connect to the cold side of the stoplight switch (only active when the brake pedal is pressed).
- Blue Wire: Connect to the trailer brake wire at the 7-way trailer connector.
Setting the Power to Trailer Brakes:
- Connect the trailer to the vehicle.
- Locate the Manual Slide Knob and Power Knob on the control.
- Set the Power Knob to minimum. Turn it 1/4 turn in the + direction.
- Drive the vehicle and trailer at 25 mph on a dry, level surface.
- Apply the Manual Slide Knob:
- If brakes lock up: Turn the Power Knob down.
- If braking is insufficient: Turn the Power Knob up.
- Repeat until braking is smooth and just below the point of wheel lock-up.
Adjusting Trailer Brake Power:
- Manual Slide Knob: Applies trailer brakes independently without vehicle brakes.
- Bi-Colored Light:
- Green: Trailer connected.
- Red: Brakes applied (either manually or with the pedal).
- Flashing Red or Off: No trailer connection detected.
Important Notes:
- Always warm the trailer brakes before setting the power.
- Drive 1/4 mile at 45 mph while engaging the brakes at a low level.
- Adjust power for different load weights or road conditions.
- Never set power high enough to lock up trailer wheels during normal braking.
- Inspect and test connections regularly to ensure proper operation.
Troubleshooting:
Issue | Probable Cause | Solution |
---|---|---|
No brakes with manual activation | Power set to minimum | Adjust Power Knob upward. |
No brakes with foot pedal | Red wire misconnected or faulty | Verify Red wire and stoplight switch. |
Trailer braking is weak | Power set too low | Adjust Power Knob upward. |
Trailer braking too strong | Power set too high | Adjust Power Knob downward. |
Flashing RED light or OFF | Poor trailer connection | Inspect wiring and connector. |
Brakes locked when connected | Reversed Black/White wires or short | Verify wiring; replace damaged unit. |
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.
Warning:
Ensure the vehicle's Gross Combined Weight Rating (GCWR) does not exceed the manufacturer’s recommendation. Always test and adjust the braking system before driving.