Many users encounter challenges when attempting to connect OBD2 Bluetooth dongles to their Android head units in their vehicles. This issue can be frustrating, especially when the goal is to utilize the head unit for car diagnostics and performance monitoring. One user has reported difficulties in pairing their OBD2 dongles with a new Android 10 head unit, highlighting a common problem within the aftermarket car tech community.
The user detailed their experience trying to pair OBD2 dongles, specifically the KONNWEI KW902 and vgate iCar Pro OBD2 Bluetooth 4.0 (BLE), with their Android 10 car radio. Despite these dongles working flawlessly with phones, tablets, and laptops, including diagnostic software like DDT4ALL, pairing with the Android head unit proved unsuccessful. They accessed the Bluetooth hidden settings, attempted to change the pairing code and disable auto-connect, but encountered a persistent issue where the system rejected the correct pairing code.
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This user’s experience is not unique, and several factors could contribute to OBD2 Bluetooth pairing failures with Android head units. These can range from compatibility issues between the head unit’s Bluetooth module and specific OBD2 dongles, to software glitches within the Android operating system on the head unit itself. Sometimes, the Bluetooth protocol implementation on the Android head unit might not fully adhere to standards, causing problems with certain Bluetooth devices, including OBD2 readers.
In conclusion, while Android head units offer a versatile platform for in-car entertainment and information, pairing them with OBD2 Bluetooth devices for vehicle diagnostics can sometimes present hurdles. Troubleshooting steps often involve checking Bluetooth settings, ensuring dongle compatibility, and sometimes, exploring specific apps or firmware updates for the head unit that might improve Bluetooth connectivity. Further investigation into specific Android head unit models and OBD2 dongle compatibility lists may be necessary to find reliable solutions.
