Body Codes (B) usually refers to the components INSIDE of the passenger compartment. When the system detects a "problem" a code is set and the check engine light will come on. To read the code you can use either a OBD Code Reader or a OBD Scan Tool which plugs into the OBD port.
OBD-II Body trouble codes start with the letter "B". These codes indicate a problem with a system or component related to the vehicle's body, which generally includes interior and exterior electronic features that aren't part of the powertrain or chassis. Some common categories of OBD-II Body (B) Trouble Codes:
Generic codes are defined in the OBD-II standards and are general codes which will be used by manufactures to discribe a common fault. Manufacture specific codes are added by the manifacturer when there is no generic code that is specific enough to discribe the issue or problem.
A inexpensive basic OBD2 code reader is a basic tool which is usually limited to just being able to read most of the stored trouble codes and being capable of clearing most of the stored trouble codes. A bi-directional scanner does so much more than a basic code reader due to it being capable of bi-directional or two way communication with ALL the vehicles various computer systems and sub systems. With a bi-directional scanner you can reset the codes and do advanced tests (turn systems on or off, etc) on all of the various systems and components which you can not do on a basic OBD-II reader.
Driver Frontal Stage 1 Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessDriver Frontal Stage 2 Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessDriver Frontal Stage 3 Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessDriver Knee Bolster Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessCollapsible Steering Column Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessPassenger Frontal Stage 1 Deployment Control
...Read MoreAn open or increased resistance in the passenger side airbag first inflator circuit
A OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessPassenger Frontal Stage 2 Deployment Control
...Read MoreAn open or increased resistance in the passenger side airbag first inflator circuit
A OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessPassenger Frontal Stage 3 Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessPassenger Knee Bolster Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessCenter Frontal Stage 1 Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessCenter Frontal Stage 2 Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessCenter Frontal Stage 3 Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessLeft Side Airbag Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessLeft Curtain Deployment Control 1
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessLeft Curtain Deployment Control 2
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessRight Side Airbag Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessRight Curtain Deployment Control 1
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessSecond Row Left Side Airbag Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessSecond Row Left Frontal Stage 1 Deployment Control (Subfault)
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessSecond Row Left Frontal Stage 2 Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessSecond Row Left Frontal Stage 3 Deployment Control (subfault)
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessSecond Row Right Side Airbag Deployment Control (Subfault)
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessSecond Row Right Frontal Stage 1 Deployment Control
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessRight Curtain Deployment Control 2
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessFirst Row Center Seatbelt Load Limiter Deployment Control
...Read MoreFirst Row Center Seat Belt Load Limiter Deployment Control
A OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read LessDrivers Side Airbag Issues
...Read MoreThe airbag light comes on telling you that there is a problem with the SRS system. The problem could be with any of the many air bags, sensors or wiring harnesses and connectors in the vehicle. If your like me and can't afford to have a dealership work on your vehicle so you will also need to fix the problem yourself. Airbags can cost thousand and most of the connectors and special sensors including crash sensors, clock-spring, seatbelt and seat sensors, airbags etc are only available from the dealer so they will be very expensive to buy. Because I can't afford to replace the wrong part the first thing you need to get is a good Bidirectional scanner to save money in the long run. The SRS system has a lot of components that could fail and it is imposable to diagnose and fix a system that complicated without the help of a up to date bidirectional scanner.
Basic scanners will allow you the ability to clear some of the codes and give you a vague diagnosis of what the issue is. Better Bidirectional scanners can go deeper into the system and can run tests on the systems which can help you pinpoint much more accurately where the fault is. My older scanner only indicated that there was a problem in the SRS system and it would allow me to clear the code just so that the codes could reappear again. My old scanner could not tell me which air bag was at fault. I also had other problems and codes which I did not know how to fix on two different vehicles so I finally "bite the bullet" and bought a new much more expensive scanner which I now wonder how I ever did without.
The scanner pulls the code B1054 which is the generic code for a open circuit in the drivers side air bag. This does not indicate that the air bag itself is defective and it only indicates that there is a problem with the circuit going to the steering wheel airbag or in the steering wheel airbag itself. Clearing the code and restarting the vehicle and letting it run did not cause the code to re appear; it only came back on when turning the steering wheel back and forth which suggesting a broken or loose wire in the clock spring.
I replaced the clock spring and cleared the code and all was good again with no more air bag faults.
Seat Driver Position Memory Error
...Read MoreA OBD-II Bi-Directional scanner is used for reading the codes, interacting with the various systems and testing those systems and individual components and then finally clearing the codes once you have fixed the problem. Basic scanners will allow you to read the codes and clear most of them. Bi-directional scanners do all that as well and allow you to dig deeper into the various systems and interact with the various sensors, actuators and computers to help you "nail down" the fault precisely.
It could be considered a minor or a major problem depending upon the root cause the fault. A minor easy to fix problems can become a large expensive problems if it is ignored long enough.
A warning fault light is just that, it's a warning that there is a problem and if you ignore the warning light long enough it can result in extra damage to the vehicle under certain conditions. A stop engine light is a warning that serious damage could now be occurring or that the vehicle is unsafe to drive. If the stop engine light comes on immediately pull over to a safe spot and shut off the engine and get help.
...Read Less