Editing Electronic control unit (section)

==Testing and validation==
As part of the development cycle, manufacturers perform detailed [[Failure mode and effects analysis|FMEAs]] and other failure analyses to catch failure modes that can lead to unsafe conditions or driver annoyance. Extensive testing and validation activities are carried out as part of the [[Production part approval process]] to gain the confidence of the hardware and software. [[On-board diagnostics]] or OBD help provide specific data related to which system or component failed or caused a failure during run time and help perform repairs.