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OBD-II Stands For Second Generation; On-Board Diagnostics Codes
Diesel Common Check Engine Light; Diagnostic Trouble Codes
The Story Of OBD-II
What was OBD I?
So, (OBD I) was California’s first (OBD) regulation. Consequently, requiring manufacturers to monitor; the emission control components. So, starting with the 1988 model year; (OBD) I systems were not fully effective. Because, they were limited to monitoring only; a few of the emission related components. But, the monitors were not calibrated; to a specific level of emission performance.
What is OBD II?
So, OBD-II is an acronym for; On Board Diagnostic II. The second generation of; on board self diagnostic equipment. Also, if a problem or malfunction is detected; the OBD-II system; illuminates a warning light. As a result, this warning light will display the phrase; “Check Engine” or “Service Engine Soon”. Furthermore, the system will store information; about any detected malfunction. So, that a repair technician can find and fix the problem.
Why is OBD so important?
OBD is an important part of telematics and fleet management; making it possible to measure and manage vehicle health and driving.
Thanks to the OBD, fleets can:
- Track wear trends and see what vehicle parts are wearing out faster than others.
- Instantly diagnose vehicle problems before they occur, supporting proactive rather than reactive management.
- Measure driving behavior, speed, idling time and so much more.
What should I do if the warning light comes on?
Consequently, there are many problems that; can cause the light to illuminate. So, it is hard to generalize how severe a problem may be. Additionally, there are certain malfunctions; that can cause the warning light to blink. Finally, this indicates that a malfunction is occurring; that could be damaging your catalytic converter.
OBD-II not only controls engine functions, but also monitors other vehicle components like; chassis, body, accessory devices like mirrors, wipers etc. And, also the diagnostic control network of the vehicle. It also follows the California Air Resources Board (CARB) guidelines; for data storage and accessibility to be provided to the external scan tools. Thus OBD-II is a protocol for vehicle diagnostics communication.
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