Many truck owners enhance their vehicles with AMP Research Powersteps for easier access. Typically, these aftermarket running boards are installed using an OBD2 splitter, especially when other devices like performance monitors or diagnostic tools are already utilizing the OBD2 port. However, relying on a splitter can sometimes lead to issues, such as signal interference or power fluctuations, particularly when using sensitive devices like the Edge Insight monitor, as highlighted by users in forums. If you’re experiencing irregularities or simply prefer a cleaner, more direct wiring solution for your AMP Research Powersteps installation, bypassing the OBD2 port entirely is a viable and often superior approach.
This guide provides a step-by-step method to directly wire your AMP Research Powersteps, eliminating the need for an OBD2 splitter. This method focuses on utilizing door trigger switches to control the deployment and retraction of your power steps, offering a reliable and independent system.
Understanding the OBD2 Splitter Issue and Direct Wiring Solution
The core problem with OBD2 splitters in this context arises when users, like the original poster, need to connect multiple devices to the OBD2 port simultaneously. While splitters offer convenience, they can sometimes compromise signal integrity or power delivery. For AMP Research Powersteps, which often rely on the OBD2 port for vehicle speed and door trigger signals, this can lead to operational glitches, especially when combined with other OBD2 devices like the Edge Insight.
Direct wiring circumvents these potential issues by establishing an independent trigger mechanism for the Powersteps. Instead of relying on OBD2 data, this method utilizes door jamb switches. These switches, commonly found in vehicles to activate interior lights when doors open, can be repurposed to signal the AMP Research controller to deploy the steps when a door is opened and retract them when closed.
Step-by-Step Guide to Direct Wiring AMP Research Powersteps
This installation method focuses on connecting your AMP Research Powerstep controller directly to door trigger signals and power sources, completely bypassing the OBD2 port.
Step 1: Identify Door Trigger Wires
Locate the door jamb switch wiring for your vehicle. These wires typically provide a ground signal when the door is opened. You’ll need to identify the specific wire for each door you want to trigger the Powersteps (usually all doors). Vehicle-specific wiring diagrams are invaluable for this step and can often be found in your vehicle’s repair manual or online vehicle-specific forums.
Step 2: Connect Door Trigger Wires to AMP Controller
Refer to the wiring schematic provided by AMP Research for your specific Powerstep model. Identify the input wires on the AMP controller designed for door trigger signals. Splice the door trigger wires you identified in Step 1 into these input wires on the AMP controller. Ensure a secure and reliable connection using appropriate wiring connectors or soldering and heat shrink tubing.
This image illustrates a typical door jamb switch, similar to those used for triggering AMP Research Powersteps without OBD2 connection.
Step 3: Verify Power and Ground Connections
Ensure your AMP Research Powerstep controller is properly connected to a 12V power source and ground. These connections are typically independent of the OBD2 port and should be wired directly to the vehicle’s battery or a suitable power distribution point. Double-check the AMP Research wiring diagram for the correct power and ground wire locations on the controller.
Step 4: Test the Installation
After completing the wiring, thoroughly test the Powersteps. Open and close each door to verify that the steps deploy and retract correctly with each door action. Check for any loose connections or wiring issues.
This wiring diagram provides a visual guide for connecting AMP Research Powersteps without utilizing the OBD2 port, focusing on door trigger and direct power connections.
Benefits of Bypassing the OBD2 Splitter
Opting for direct wiring offers several advantages:
- Eliminates OBD2 Splitter Issues: Completely avoids potential signal interference, power problems, or compatibility conflicts associated with OBD2 splitters.
- Cleaner Installation: Reduces clutter around the OBD2 port and can lead to a more streamlined and professional-looking installation.
- Independent Operation: The Powersteps operate independently of the OBD2 system, ensuring reliable deployment and retraction triggered directly by door actions.
- Diagnostic Port Availability: Frees up the OBD2 port for dedicated use by diagnostic tools or performance monitors without the need for cumbersome splitters.
By following this direct wiring method, you can achieve a robust and reliable installation for your AMP Research Powersteps, ensuring optimal performance and avoiding potential issues associated with OBD2 splitters. Always consult your vehicle’s wiring diagrams and the AMP Research Powerstep installation manual for precise wire identification and connection details specific to your vehicle and Powerstep model. If you are not comfortable with automotive electrical work, professional installation is highly recommended.
