What does the Delawares inspection system check?
There are two basic steps to the OBD II inspection: With the key on and engine off, the MIL bulb is checked to verify that it works, and: The inspection tool is connected to the on-board computer that checks the OBD-II system status. The following is a typical OBD-II connector located in your vehicle. Three pieces of information are downloaded from the vehicle’s OBDII system: Emissions MIL command – on or off; Which, if any, fault codes are stored; and Readiness status of OBD II system.