Product Details
- Brand: Reese
- Model: 74378 3020-2
- Includes: Pilot Trailer Time-Delay Brake Controller for Trailers with 1-3 Axles, Trailer Brake Controller Custom Harness
Compatibility Chart
Year Range | Make | Model | Style |
---|
Description
Get Expert Help
Reese Pilot Trailer Brake Control for 95-09 Dodge RAM 1500 2500 3500 Electric Trailer Brakes Module Box Controller 1-3 Axle Install Notes
Installation Instructions for Electric Trailer Brake Control Wiring Adapter
Part Number: 302000
Tools Required:
- None
Step-by-Step Instructions:
Step 1: Locate the Vehicle’s Electric Brake Control Harness Connector
- The electric brake control harness connector is located:
- Underneath the dashboard
- To the left of the steering column, near the emergency brake pedal.
- It is typically taped to another harness and will feature a 4-pin connector that matches the adapter’s connector.
Step 2: Connect the Adapter
- Plug the brake control adapter into the 4-pin connector on the vehicle’s brake control harness.
- Connect the opposite end of the adapter to the brake controller.
- Follow the brake control manufacturer’s installation instructions for wiring and mounting the unit.
CAUTION:
Plug the adapter into the brake controller before attaching it to the vehicle connector.
Step 3: Complete Installation and Testing
- Mount the brake controller as per the manufacturer’s instructions.
- Perform all test procedures recommended by the brake controller manufacturer to verify proper operation.
Safety Warnings:
- Do NOT overload the circuit:
- Maximum capacity: 4 axles / 8 brakes (24 amps).
- Follow the lower of the towing manufacturer’s rating or the above maximum.
- Always refer to the vehicle owner’s manual and the brake controller instructions for proper installation and operation.
Wiring Overview:
- Stop Lamp Switch to Brake Controller (Input): Provides braking signal to the brake controller.
- Fused Battery Feed: Supplies power to the brake controller.
- Trailer Brake Controller (Output): Sends braking signal to the trailer brakes.
- Ground: Connects the brake controller to vehicle ground.
Final Notes:
- Periodically check all connections to ensure they remain secure and free of corrosion.
- Avoid exceeding the electrical limits specified for the towing system.
End of Instructions
Installation Instructions for Electronic Brake Control
Product Information:
- Model: Brake Control for 2 to 6 Brake Applications
- Part Number: N74378
Tools Required:
- Screwdriver
- Drill with 1/8" Drill Bit
- Wire Stripper/Cutter
- Crimping Tool
Components Included:
- Brake Control Unit
- Mounting Bracket
- Mounting Screws (#6 x 3/8") (Qty: 4)
Mounting Instructions:
-
Select Mounting Location:
- Choose a solid surface within easy reach of the driver.
- Ensure no wires or components are behind the mounting area.
-
Attach the Mounting Bracket:
- Place the bracket and mark the holes using the mounting bracket slots as a guide.
- Drill two 1/8" holes at the marked points.
- Secure the bracket with #6 x 3/8" screws.
-
Install the Brake Control:
- Slide the Brake Control into the bracket.
- Adjust to the desired position and secure it by tightening the screws.
Wiring Instructions:
- Black Wire: Connect to the 12V positive battery terminal using a 30A circuit breaker.
- White Wire: Connect to a clean, bare metal ground.
- Red Wire: Connect to the cold side of the stoplight switch (voltage present only when the brake pedal is pressed).
- Blue Wire: Connect to the trailer brake wire at the 7-way trailer connector.
Setting Power to Trailer Brakes:
- Connect the trailer to the tow vehicle.
- Locate the Manual Slide Knob and Power Knob on the Brake Control.
- Apply the Manual Slide Knob and turn the Power Knob until the display reads 4.0.
- Drive at 25 mph on a dry, level surface and apply the Manual Slide Knob:
- If brakes lock up: Reduce the power setting.
- If braking is insufficient: Increase the power setting.
- Repeat the test until braking is smooth, without wheel lock-up.
Adjusting Display Orientation:
To reverse the display from upside down to right side up:
- Disconnect the Black Wire (battery connection) from the tow vehicle.
- Wait 5 seconds.
- Reconnect the Black Wire.
- Do not press the brake pedal or Manual Slide Knob while reconnecting.
Important Notes:
- Always warm trailer brakes by driving 1/4 mile at 45 mph while applying a low brake level.
- Do not exceed power settings that lock up the trailer brakes. Wheel skidding can cause loss of vehicle control.
- Adjust power settings for different loads or road conditions.
Troubleshooting:
Issue | Probable Cause | Solution |
---|---|---|
No display when connected to power | Poor connection (Black or White wires) | Check wiring connections and ground. |
Trailer brakes are too aggressive | Power set too high | Reduce power using Power Knob. |
Braking is weak or insufficient | Power set too low or poor connections | Increase power; check Blue wire. |
Display shows "0.0" when activated | Poor trailer connection or wiring issue | Inspect trailer connector and wiring. |
Safety Notes:
- Disconnect the trailer plug before testing the breakaway switch. Failure to do so may damage the Brake Control.
- Regularly inspect trailer brakes and connections to ensure proper operation.
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: Do not exceed the vehicle's Gross Combined Weight Rating (GCWR) as recommended by the manufacturer.