RCBearings
Full Member
I bought two different ELM327 code readers and neither one will read the OBD codes. Both of them power up, the PC yellow light flashes on then off, then the green OBD light flashes on then off. I have paired them with my phone. Yes, I have the engine running. My Samsung phone with several code apps also get nothing from it. Is there something wrong with the connector? My Harbor Freight Cen-Tech reader reads codes just fine.