AI4Car quick readA short, original guide from the AI4Car knowledge library.
P0720 is associated with the transmission output-speed sensor circuit. A warning light, incorrect speed reading, or altered shifting may be present, but symptoms vary by vehicle.
Check for companion transmission codes and inspect the circuit using the wiring information for the exact model. A sensor fault and a wiring fault can look similar until the signal is tested.
Quick educational note
For information, not a diagnosis or repair instruction. Vehicle-specific checks are still required. Consult the manufacturer's guidance and a qualified technician.
How to use this information
This article explains general principles and does not establish what is wrong with your vehicle. Read the content limitations.