OBD2 to OBD1 Adapter Cable Fit for GM 12 Pins Male OBDI to OBDII 16 Pins
OBD2 to OBD1 Adaptation Function: Specially designed for GM models, converting the 12 pin OBD1 interface to a 16 pin OBD2 interface, compatible with OBD2 diagnostic tools, making it easy to read vehicle data.