Tekonsha Primus IQ Electric Trailer Brake Control for 03‑09 Lexus GX470 03‑07 Lexus LX470 w/ Plug Play Wiring Adapter Proportional Eletric Trailer Brakes Module Box Controller
Model: 90160 3040Brake Control Unit
Mounting hardware and bracket
Vehicle specific Plug and Play Wiring Adapter
Fits The Following Vehicles
2003 - 2009 Lexus GX470, All Styles
2003 - 2007 Lexus LX470, All Styles
Utilizing the primary sensor technology from Prodigy®, the Primus®IQ now includes the Boost feature that gives users the ability to apply more initial trailer braking when towing heavier trailers. It works proportionally in reverse for backing into tough spots and includes a snap-in dash mounting clip and removable electrical connector that allows the unit to be quickly stored when not in use. You will appreciate the digital readout depicting a secure electrical connection, amount of voltage delivery to the trailer brakes and diagnostic features incorporated in the LED display.
Brake Control Specs:
| Part Number | 90160 |
| Brand | Tekonsha |
| Type | Proportional |
| Axles | 1 to 3 axle trailers |
| Warranty | Lifetime |
| Features: | Utilizes Plug-N-Play port for 2-plug adapters Self-diagnostics features will illuminate LED readout when issues occur. Includes a "Boost" feature. Works proportionally in reverse. Snap-in dash mounting clip and hardware included. Digital LED readout. |
| Installation Instructions |  |
2-Plug Wiring Asapter Specs:
| Part Number | 3040 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions | |
Thank you for choosing Tekonsha the most powerful manufacturer of electric trailer brake control systems. Manufactured by the same people that brought you Reese, Draw-Tite and Hidden Hitch all of our products come with standard lifetime warranty and support. The included adapter will simply plug into the back of the brake control and the other end plugs into a matching plug on your vehicle. There is no splicing or worry involved, it is a very simple installation process. All parts in our store are sold at a discount. If you have any questions please do not hesitate to give us a call at 702-374-8999. We will match or beat anyones price.
Partial list of fitment years: 03 04 05 06 07 08 09 2003 2004 2005 2006 2007 2008 2009
$111 34 $168.70 34% OFF
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$168.70 $111 34
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Product Details
- Brand: Tekonsha
- Model: 90160 3040
- Includes: Primus IQ Proportional Brake Controller for Trailers with 1-3 Axles, Trailer Brake Controller Custom Harness
Compatibility Chart
Brake Control Unit
Mounting hardware and bracket
Vehicle specific Plug and Play Wiring Adapter
Fits The Following Vehicles
2003 - 2009 Lexus GX470, All Styles
2003 - 2007 Lexus LX470, All Styles
Utilizing the primary sensor technology from Prodigy®, the Primus®IQ now includes the Boost feature that gives users the ability to apply more initial trailer braking when towing heavier trailers. It works proportionally in reverse for backing into tough spots and includes a snap-in dash mounting clip and removable electrical connector that allows the unit to be quickly stored when not in use. You will appreciate the digital readout depicting a secure electrical connection, amount of voltage delivery to the trailer brakes and diagnostic features incorporated in the LED display.
Brake Control Specs:
| Part Number | 90160 |
| Brand | Tekonsha |
| Type | Proportional |
| Axles | 1 to 3 axle trailers |
| Warranty | Lifetime |
| Features: | Utilizes Plug-N-Play port for 2-plug adapters Self-diagnostics features will illuminate LED readout when issues occur. Includes a "Boost" feature. Works proportionally in reverse. Snap-in dash mounting clip and hardware included. Digital LED readout. |
| Installation Instructions | |
2-Plug Wiring Asapter Specs:
| Part Number | 3040 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions | |
Thank you for choosing Tekonsha the most powerful manufacturer of electric trailer brake control systems. Manufactured by the same people that brought you Reese, Draw-Tite and Hidden Hitch all of our products come with standard lifetime warranty and support. The included adapter will simply plug into the back of the brake control and the other end plugs into a matching plug on your vehicle. There is no splicing or worry involved, it is a very simple installation process. All parts in our store are sold at a discount. If you have any questions please do not hesitate to give us a call at 702-374-8999. We will match or beat anyones price.
Partial list of fitment years: 03 04 05 06 07 08 09 2003 2004 2005 2006 2007 2008 2009
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Tekonsha Primus IQ Electric Trailer Brake Control for 03-09 Lexus GX470 03-07 Lexus LX470 w/ Plug Play Wiring Adapter Proportional Eletric Trailer Brakes Module Box Controller Install Notes
Installation Instructions for Electric Trailer Brake Control Wiring Adapter
Part Number 304000
Tools Required:
- Drill with 3/32” Bit (if needed)
- Phillips Head Screwdriver
Step-by-Step Instructions:
Step 1: Locate the Vehicle’s Electric Brake Control Harness
- Locate the electric brake control harness:
- Underneath and left of the steering column, taped to another harness near the emergency brake pedal.
- The harness features a 5-pin connector matching the adapter plug.
Step 2: Secure the Ground Wire
- Find a suitable grounding point near the harness, such as:
- An existing ground stud, or
- If necessary, drill a 3/32” hole into a metal surface.
- Use the provided eyelet and screw to secure the white ground wire to the grounding point.
- CAUTION: Do not drill into the vehicle floor or bed.
- Clean dirt, rust, or rustproofing from the area before securing.
Step 3: Connect the Adapter
- Plug the brake control adapter into the 5-pin connector of the vehicle’s electric brake control harness.
- Follow the brake control manufacturer’s installation instructions to:
- Wire the adapter to the brake controller, and
- Mount the brake controller securely as instructed.
Final Step: Test the Installation
- Follow the test procedures provided by the brake controller manufacturer to confirm proper operation.
Warnings:
- Circuit Overload Can Cause Fires:
- DO NOT exceed the lower of:
- Vehicle towing capacity specified by the manufacturer, or
- Maximum Capacity: 4 axles / 8 brakes (24 amps).
- DO NOT exceed the lower of:
- Read and follow the vehicle’s owner’s manual and the brake control instructions.
Safety Notes:
- Always wear safety glasses during installation.
- Periodically inspect all wiring and connections for signs of damage or wear.
- Ensure wires are routed away from:
- Sharp edges
- Moving components
- Hot surfaces
End of Instructions
Installation Instructions for Electric Trailer Brake Control Wiring Adapter
Part Number 304000
Tools Required:
- Drill with 3/32” Bit (if needed)
- Phillips Head Screwdriver
Step-by-Step Instructions:
Step 1: Locate the Vehicle’s Electric Brake Control Harness
- Locate the electric brake control harness:
- Underneath and left of the steering column, taped to another harness near the emergency brake pedal.
- The harness features a 5-pin connector matching the adapter plug.
Step 2: Secure the Ground Wire
- Find a suitable grounding point near the harness, such as:
- An existing ground stud, or
- If necessary, drill a 3/32” hole into a metal surface.
- Use the provided eyelet and screw to secure the white ground wire to the grounding point.
- CAUTION: Do not drill into the vehicle floor or bed.
- Clean dirt, rust, or rustproofing from the area before securing.
Step 3: Connect the Adapter
- Plug the brake control adapter into the 5-pin connector of the vehicle’s electric brake control harness.
- Follow the brake control manufacturer’s installation instructions to:
- Wire the adapter to the brake controller, and
- Mount the brake controller securely as instructed.
Final Step: Test the Installation
- Follow the test procedures provided by the brake controller manufacturer to confirm proper operation.
Warnings:
- Circuit Overload Can Cause Fires:
- DO NOT exceed the lower of:
- Vehicle towing capacity specified by the manufacturer, or
- Maximum Capacity: 4 axles / 8 brakes (24 amps).
- DO NOT exceed the lower of:
- Read and follow the vehicle’s owner’s manual and the brake control instructions.
Safety Notes:
- Always wear safety glasses during installation.
- Periodically inspect all wiring and connections for signs of damage or wear.
- Ensure wires are routed away from:
- Sharp edges
- Moving components
- Hot surfaces
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
Specifications:
- Applicable for 2, 4, and 6 brake applications.
- Features proportional braking via an inertial sensor.
Tools Required:
-
6 x 3/8" screws.
- Drill with 1/8" bit.
- Screwdriver or wrench.
Safety Notes:
- Keep RF-generating devices (e.g., cell phones) at least 12 inches away from the brake control to avoid interference.
- Disconnect the trailer plug before testing a breakaway switch to prevent damage to the control unit.
- Do not exceed the vehicle’s Gross Combined Weight Rating (GCWR).
- This unit is not designed for electric-hydraulic trailer brake systems.
Hardware List:
- Brake control unit.
- Mounting bracket.
- Wiring harness.
Installation Instructions:
Mounting the Unit:
-
Traditional Bracket Mount:
- Secure the mounting bracket to a solid surface using the provided screws.
- Attach the brake control to the bracket and adjust to the desired position.
- Tighten screws securely.
-
Dash Mounting Clip:
- Secure the dash clip to a solid surface with screws.
- Slide the brake control into the clip, ensuring the rear slots engage with the clip's tabs.
- Adjust to the proper angle and tighten securely.
Wiring Options:
-
Generic Wiring Harness:
- Use the included pigtail wiring harness and follow the generic wiring guide.
-
OEM-Specific Harness:
- Use an OEM wiring harness compatible with your vehicle’s tow package.
Setting Power to Trailer Brakes:
- Connect the trailer to the tow vehicle.
- Adjust the power knob to indicate approximately 6.0 on the display.
- Test at 25 mph on a dry, level surface:
- If trailer brakes lock up, decrease power.
- If braking is insufficient, increase power.
- Repeat until braking is smooth and sufficient without wheel lock-up.
Boost Settings:
- Allows for increased trailer braking sensitivity.
- Three levels available:
- [b.1]: Starts at 13% of the power setting.
- [b.2]: Starts at 25%.
- [b.3]: Most aggressive setting.
- Adjust according to trailer weight and braking performance.
Automatic Leveling:
- The unit automatically levels the inertial sensor for optimal performance.
Troubleshooting Guide:
| Issue | Possible Cause | Solution |
|---|---|---|
| No brakes with manual or pedal activation | Poor power or ground connection. | Check power and ground connections. |
| Trailer brakes lock up | Excessive power setting. | Reduce power or inspect brake wiring. |
| "OL" error on display | Overload condition detected. | Inspect and correct wiring issues. |
| Flashing display | Connection or mounting angle issue. | Verify proper mounting and connections. |
Maintenance:
- Warm up trailer brakes before adjusting power.
- Inspect and adjust brakes after 200 miles and every 3,000 miles thereafter.
- Periodically check all connections and tighten if needed.
Warranty Information:
- Limited Warranty:
- Covers defects in materials and workmanship under normal use.
- Excludes damage caused by misuse, improper installation, or overloading.
- Attention: For complete warranty instructions, 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.
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