I'm experiencing a P0700 general malfunction code on my 1996 Chevrolet Blazer. The vehicle is showing this error but I don't know where to begin troubleshooting. Can anyone provide guidance on how to diagnose or resolve this issue? I've checked the basics, but the code persists and I'm not sure if it's a serious concern or something that can be safely ignored.
I received the P0700 code after testing my new brakes — I stopped and then pressed the gas a few times. The transmission slipped, and I couldn't shift past first gear. I was only able to drive at around 30 mph before having to stop. After using a basic OBD2 scanner, I confirmed the P0700 code. I tried clearing it, but it remained. Since then, the transmission shifts normally, yet the code still stays. Is this a false positive or does it indicate an ongoing issue? Should I ignore it or seek help from a transmission specialist? Thanks for any advice.
Start with a thorough scan using a quality OBD2 scanner to check all related sensors and other diagnostic trouble codes. The P0700 code indicates a transmission control system issue, so look for underlying problems like faulty shift solenoids, sensor malfunctions, or communication errors. A professional transmission technician should be consulted for accurate diagnosis and repair.