Tag Archives: OBD 2

On Board Diagnostics (OBD) for Cars

On Board Diagnostics refers to any vehicle’s inherent ability to register and report issues and glitches that may occur, or have occurred within the system. One of OBD’s strengths is that it can detect problems long before the driver is even able to notice any symptoms, such as low-performance, lesser economy and heavy emissions. 

The OBD system functions by placing different kinds of sensors in vital areas of your vehicle, which report back to the diagnostic system whether those particular areas are working perfectly or not. When one or more sensors find a part of the vehicle that isn’t working within its designed specifications, the sensor triggers that warning light on the vehicle’s dashboard, indicating that the area needs to be addressed immediately.

There are something called as Diagnostic Trouble Codes (DTC) that are stored in the system. The codes are not the same across all vehicles. A mechanic can connect to the OBD port and diagnose the problem by reading the corresponding DTC. Let us see the various types of Diagnostic Systems.

VARIOUS TYPES OF OBD

OBD I:

The primary diagnostic system OBD I has certain Diagnostic Trouble Codes (DTCs) in vehicles that can usually be found without an expensive scan tool. All manufacturers can use the DTC’s to diagnose location, definitions, procedures, connectors etc. DTCs from the OBD-I cars are often read through blinking patterns of a ‘Check Engine Light’ (CEL) or ‘Service Engine Soon’ (SES) light. The ‘Check Engine’ light will output a two-digit number that corresponds to a particular error condition. 

OBD II:

OBD II is a comprehensive update of the OBD I.  The OBD-II standards specify the type of diagnostic connectors and its pin-outs as well as all the electrical signaling protocols available and the messaging format. OBD II is predominantly used by garages and pro-mechanics. However, solutions are available now for consumer use as well. 

Due to it being a more holistic system, OBD-II is heavily used by all professional mechanics for diagnosing. However, there are consumer oriented products that can also take advantage of its diagnostic abilities.

OBD Port
OBD Port

Having seen these types, we must realize that unless we really derive some benefits from this system, we cannot really understand its efficiency. Let us see some key benefits of OBD.

BENEFITS OF OBD

  1. OBD helps the technicians properly diagnose and repair complex problems.
  2. It encourages the design of durable and robust engine optimization systems.
  3. Exhaust Emissions can regulated by identifying the emission controls in need of repair and also provides for effective/inexpensive emission inspections.
  4. It generally works for life of the vehicle.
  5. Early detection of malfunctions to prevent secondary malfunctions (e.g., detect misfire before catalyst damaged).
  6. Fault codes are given out by the system that can be negated Apart from this it can provide vital data about area of malfunction or the specific component where attention is required.

The OBD process consists of four simple steps that is carried out by the system in aid to diagnose the issues.

THE PROCESS OF OBD:

  1. Your system continuously monitors and assesses operating conditions.  
  2. It observes the signals entering the computer directly from the component/system, or related to the performance of the component/system.
  3. It then verifies the performance / functionality / rationality of the malfunction criteria.
  4. It finally notifies the driver of the particular fault by the illumination of warning indicator or stores the unique fault code and throws up an error on the instrument panel.

IMPACT OF OBD ON MULTI-BRAND GARAGE SERVICES

It is easy to make the assumption that a Toyota service center can diagnose a Toyota car to perfection, that being its product. However, the same is not easy to do for a multi brand garage as they spend more time to even diagnose the issue. An authorized service center of a brand would have no trouble in diagnosis simply because they built the cars they have to service. The same is not the case for multi brand garages which have to fulfill multiple demands. This is where the On Board Diagnostic System proves to be a huge boon. As shown in the benefits of OBD, it can prove a life-saver for garages servicing multi brand cars. Their technicians just have to combine their expertise with an apt reading of the OBD codes to diagnose the problems. This in turn leads to faster checkout of serviced vehicles, easier diagnosis and better quality of service rendered.

OBD Diagnosis.jpg
OBD Diagnosis

Here at GoBumpr, On Board Diagnostics plays a big role in satisfying customers’ needs. We place our confidence with our own preferred multi-brand garages which carry out various responsibilities from our side. The garages affiliated with us make use of the benefits of OBD to diagnose and detect problems easily, assisting in proper application of apt solutions. So rest assured, you can safely contact us to service any car of yours that has any issue, small or big. Catch us on the Play Store under the name GoBumpr! or simply visit our website for more info.  

We hope we have given you a basic outline about On Board Diagnostics, its usage and benefits & hope that it helps you.  Wishing you a happy weekend and joyful rides!