For automotive enthusiasts and DIY mechanics, having a reliable OBD2 scanner is indispensable. The Bafx Products Bluetooth Diagnostic Obd2 Scanner has garnered positive reviews for its solid connection and compatibility, particularly when used with apps like Turbo3’s. Many users appreciate its robust build and consistent performance in vehicle diagnostics. One feature that can enhance its usability is modifying it for switched 12V power. This modification ensures that the scanner only draws power when the vehicle is on or in accessory mode, preventing potential battery drain when the car is off.
This guide will walk you through a simple 15-minute modification to convert your BAFX OBD2 scanner to switched ACC power. This is particularly useful if you prefer the device to be active only when your vehicle is running, and it’s a straightforward process even for those with basic DIY skills.
Step-by-Step Guide to Modify Your BAFX OBD2 Scanner for Switched 12V Power
Here’s how to modify your BAFX Products Bluetooth OBD2 adapter for switched 12V power:
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Access the Internals: Begin by removing the blue adhesive label on the BAFX OBD2 adapter to reveal the four screws underneath. Unscrew these to open the device casing.
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Disconnect the Connector: Carefully separate the two halves of the unit. Inside, you’ll see a white connector linking the OBDII port to the PC board. Gently unplug this white connector.
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Remove the OBDII Connector: Once disconnected, you can lift the OBDII connector assembly completely out of the unit’s shell. This provides easy access to the pins you need to modify.
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Reposition the Power Wire: Locate pin 16, which is the constant 12V power supply pin, and pin 8, the switched ACC 12V pin. In most configurations, pin 16 is on the top left, and pin 8 is on the bottom left. Carefully move the wire from pin 16 to pin 8. This crucial step reroutes the power source to be ignition-switched.
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Reassemble the Connector: Place the OBDII connector back into the shell and firmly replug the white connector back into the PC board.
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Close the Casing: Rejoin the two halves of the shell and secure them with the four screws you removed earlier. Be mindful of the internal components, especially the LEDs, to avoid bending them during reassembly.
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Final Touches: You can choose to reapply the blue label or leave it off. Your BAFX OBD2 scanner is now modified for switched power.
Testing and Conclusion
After modification, your BAFX Products Bluetooth Diagnostic OBD2 Scanner will function just as before, but now it will only power on when your vehicle is turned on or in ACC mode. This modification is fully compatible with diagnostic apps like Turbo3’s, ensuring seamless integration and operation. This simple DIY project enhances the longevity and convenience of your Bluetooth OBD2 scanner by preventing unnecessary battery drain, making it an even more valuable tool for vehicle diagnostics.
