ICT Billet GM LS OBD2 Dash Diagnostic Port 4-Wire Harness Connector Plug Pigtail Instruction Manual

Product Overview

The ICT Billet GM LS OBD2 Dash Diagnostic Port 4-Wire Harness Connector Plug Pigtail (Model CA-WP0BD30) is designed to provide a functional OBD2 diagnostic port for various GM LS engine applications. This pigtail is ideal for LS engine swaps where an OBD2 port is needed, or for replacing a damaged or missing factory diagnostic port. It is assembled with OEM tooling, connectors, locks, seals, and terminals, utilizing OEM harness wire colors for seamless integration.

Image: The ICT Billet OBD2 Diagnostic Port 4-Wire Harness Pigtail, showing the connector and four colored wires extending from it.

Key Features

• Assembled with OEM tooling, connectors, locks, seals, and terminals for a precise fit.
• Utilizes OEM harness wire colors for straightforward installation and compatibility.
• Enables the addition of an OBDII (OBD2) port for LS engine swap projects.
• Serves as a direct replacement for damaged or non-functional existing OBD2 ports.
• Includes 6 inches of factory color wire for flexible integration.
• Constructed with USA-made OEM grade TXL wire for durability and reliable connections.

What's in the Box

• One (1) ICT Billet OBD2 Dash Diagnostic Port Pigtail with 6-inch wire leads.

Installation Guide

This section provides general guidance for installing the OBD2 diagnostic port pigtail. Professional installation is recommended if you are not familiar with automotive electrical systems.

Required Tools and Materials (Not Included):

• Wire strippers/crimpers
• Heat shrink tubing or electrical tape
• Solder (optional, for more secure connections)
• Multimeter for verifying connections
• Vehicle-specific wiring diagrams (for your ECM/PCM)

Installation Steps:

1. Safety First: Disconnect the vehicle's battery before beginning any electrical work to prevent short circuits or damage.
2. Identify Mounting Location: Determine a suitable location for the OBD2 port. This is typically under the dashboard on the driver's side. Ensure it is easily accessible and securely mounted.
3. Understand Wiring: The pigtail includes four wires. Refer to the OBD2 Port Wiring Diagram below to understand the function of each pin. The pigtail uses OEM wire colors to simplify identification.


Image: A diagram illustrating the 16-pin OBD2 connector with pin numbers and their typical functions: Pin #2 (to ECM), Pin #4 (to chassis ground), Pin #16 (positive 12 volt constant).

4. Connect Wires:
   • Pin #2 (ECM/PCM Data Line): Connect this wire to the appropriate data line from your vehicle's Engine Control Module (ECM) or Powertrain Control Module (PCM). Consult your vehicle's specific wiring diagram for the correct pin on your ECM/PCM (e.g., blue plug, pin 58 for some LS applications).
   • Pin #4 (Chassis Ground): Connect this wire to a reliable chassis ground point on the vehicle. Ensure a clean, secure connection for proper operation.
   • Pin #16 (Constant 12V Power): Connect this wire to a constant 12-volt power source. This source should be fused appropriately (e.g., 10A fuse).
   • Additional Wires (if applicable): While this pigtail is 4-wire, some applications may require additional connections for specific functions (e.g., Pin #5 for signal ground, if not combined with Pin #4). Always refer to your specific vehicle and ECM/PCM wiring diagrams.
5. Secure Connections: Use appropriate connectors (crimp, solder, or heat shrink butt connectors) to ensure secure and insulated connections. Protect all exposed wiring.
6. Verify Connections: Before reconnecting the battery, use a multimeter to verify continuity and correct voltage at the OBD2 port pins according to the diagram.
7. Reconnect Battery: Once all connections are secure and verified, reconnect the vehicle's battery.
8. Test Functionality: Connect an OBD2 scanner to the newly installed port to confirm proper communication with the vehicle's ECM/PCM.

Image: A close-up view of the OBD2 connector's pin receptacles, showing the internal contacts.

Operating Instructions

Once the ICT Billet OBD2 Dash Diagnostic Port is correctly installed and wired, it functions as a standard OBD2 diagnostic port for your vehicle. No special operation is required for the port itself.

• To use the port, simply plug in any standard OBD2 diagnostic scanner or compatible device.
• Ensure the vehicle's ignition is in the "ON" position (engine off or running, depending on the diagnostic task) for the scanner to communicate with the vehicle's computer.
• Follow the instructions provided with your specific OBD2 scanner for reading diagnostic trouble codes (DTCs), viewing live data, or performing other diagnostic functions.

Maintenance

The ICT Billet OBD2 Dash Diagnostic Port Pigtail requires minimal maintenance. Regular inspection can help ensure its longevity and proper function.

• Periodic Inspection: Periodically check the physical condition of the connector and the wiring. Ensure there are no signs of damage, corrosion, or loose connections.
• Cleanliness: Keep the port free from dirt, dust, and moisture. Use a clean, dry cloth to wipe down the connector if necessary. Avoid using harsh chemicals or abrasive materials.
• Secure Mounting: Ensure the port remains securely mounted in its chosen location to prevent strain on the wiring.

Troubleshooting

If you encounter issues with your ICT Billet OBD2 Dash Diagnostic Port, consider the following troubleshooting steps:

• No Communication with Scanner:
  • Verify that the vehicle's ignition is in the "ON" position.
  • Check all wiring connections (Pin #2 to ECM, Pin #4 to ground, Pin #16 to 12V constant) for looseness, corrosion, or incorrect wiring.
  • Ensure the 12V power source is active and the fuse is intact.
  • Test the OBD2 scanner on another vehicle to confirm it is functional.
  • Consult your vehicle's service manual for specific OBD2 communication protocols or common issues.
• Intermittent Connection:
  • Inspect the physical connection of the scanner to the port.
  • Check for any loose or damaged wires within the pigtail or at the connection points.
  • Ensure the port is securely mounted and not subject to excessive movement or vibration.
• Incorrect Readings/Data:
  • This is less common for the port itself and more likely related to the ECM/PCM or the scanner.
  • Verify the scanner's settings and compatibility with your vehicle.
  • Ensure the ECM/PCM is properly configured for your engine swap.

If issues persist after troubleshooting, it is recommended to consult with a qualified automotive technician.

Specifications

Warranty and Support

For specific warranty information regarding your ICT Billet product, please refer to the documentation included with your purchase or contact ICT Billet directly through their official website or customer service channels. ICT Billet is committed to providing high-quality products and support.

You can visit the official ICT Billet store on Amazon for more products and information: ICT Billet Amazon Store