Are you using a Bafx Products Bluetooth Obd2 Scan Tool App to monitor your vehicle’s diagnostics? Many enthusiasts and DIY mechanics rely on these tools for real-time data and troubleshooting. A common concern with Bluetooth OBD2 adapters is their constant draw on your car battery, as they often remain powered even when the ignition is off. This article provides a simple, step-by-step guide to modify your BAFX Bluetooth OBD2 adapter for switched power, ensuring it only operates when your vehicle is running or in ACC mode. This modification is particularly beneficial for users who frequently use OBD2 scan tool apps and want to avoid battery drain.
This modification focuses on relocating a single wire within the BAFX Products PIC18F2480 Bluetooth OBD2 adapter. This adapter is well-regarded for its compatibility and solid connection, making it a popular choice for various OBD2 applications. The process is straightforward and can be completed in about 15 minutes with basic tools. By switching from constant 12V to switched ACC 12V, your BAFX Bluetooth OBD2 scan tool app setup becomes more energy-efficient and convenient.
Here’s how to modify your BAFX Bluetooth OBD2 adapter for switched power:
Step-by-Step Guide to Modify Your BAFX OBD2 Adapter
Tools You Will Need:
- Phillips head screwdriver (small size)
- Your BAFX Products PIC18F2480 Bluetooth OBD2 adapter
Step 1: Accessing the Internals
The first step is to open the BAFX adapter casing. Locate the blue label on the adapter. Beneath this label, you will find four screws. Carefully peel off the adhesive label to reveal these screws. Using your Phillips head screwdriver, remove all four screws.
Step 2: Separating the Unit and Disconnecting the Connector
Once the screws are removed, gently separate the two halves of the adapter casing. Inside, you’ll see a white connector linking the PC board to the OBDII connector. Carefully unplug this white connector from the PC board. This disconnection allows you to safely remove the OBDII connector from the housing.
Step 3: Wire Relocation – Switching to Switched 12V Power
Now, carefully lift the OBDII connector out of the adapter’s shell. Identify pin 16 and pin 8 on the connector. Pin 16 is the wire providing constant 12V power, and pin 8 is designated for switched ACC 12V power. In most configurations, pin 16 is located on the top left, and pin 8 is on the bottom left. Gently move the wire currently in pin 16 and relocate it to pin 8. This single wire move is what switches your adapter to ACC power.
Step 4: Reassembly
After relocating the wire, place the OBDII connector back into the shell and reconnect the white connector to the PC board. Carefully reassemble the two halves of the casing, ensuring you don’t bend the LEDs inside. Secure the casing by re-inserting and tightening the four screws. You can choose to reapply the blue label or leave it off.
Step 5: Testing Your Modified Adapter
With the modification complete, test your BAFX Bluetooth OBD2 adapter. Plug it into your vehicle’s OBDII port and turn your ignition to ACC or fully on. Verify that the adapter powers up and connects with your chosen Bluetooth OBD2 scan tool app, such as the Turbo3 app mentioned in the original context, or any other compatible app on your smartphone or tablet.
Conclusion
Modifying your BAFX Products Bluetooth OBD2 scan tool app adapter for switched power is a quick and effective way to enhance its usability and prevent unnecessary battery drain. This simple wire relocation ensures that your adapter only draws power when your vehicle is in use, making it a more convenient and reliable tool for vehicle diagnostics and monitoring. Enjoy the improved experience with your BAFX Bluetooth OBD2 scan tool app!
