Why Perform OBD II Inspection?
On-Board Diagnostic systems (OBD) on 1996 and newer vehicles will be checked as part of Delaware’s vehicle inspection program. OBD technology benefits motorists, repair technicians and our environment. It’s good for motorists because it monitors the vehicles performance every time it is driven and identifies problems immediately allowing service to be done before more serious problems develop. It’s good for repair technicians because it helps to accurately diagnose problems, allowing for efficient and proper repairs. And it’s good for the environment and our health because it identifies problems that cause vehicle emissions to increase. If any of the following conditions are met, the vehicle will fail the OBDII inspection and the vehicle must be serviced. The Malfunction Indicator Light (MIL) does not illuminate at all when the ignition key is turned to the “key on, engine not running” position. Depending on the vehicle make, the MIL will display something similar to “Service Engine So