- GM OBD1 DIAGNOSTIC TROUBLE CODES HOW TO
- GM OBD1 DIAGNOSTIC TROUBLE CODES CODE
- GM OBD1 DIAGNOSTIC TROUBLE CODES SERIES
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GM OBD1 DIAGNOSTIC TROUBLE CODES SERIES
Modern OBD implementations use a standardized digital communications port to provide real-time data in addition to a standardized series of diagnostic trouble codes, or DTCs, which allow a person to rapidly identify and remedy malfunctions within the vehicle. Early versions of OBD would simply illuminate a malfunction indicator light or " idiot light" if a problem was detected but would not provide any information as to the nature of the problem. The amount of diagnostic information available via OBD has varied widely since its introduction in the early 1980s versions of on-board vehicle computers. OBD systems give the vehicle owner or repair technician access to the status of the various vehicle sub-systems. On-board diagnostics ( OBD) is an automotive term referring to a vehicle's self-diagnostic and reporting capability. Used to connect to the SAE J1962 Data Link Connector (DLC) found in many cars of the era.
GM OBD1 DIAGNOSTIC TROUBLE CODES CODE
You can get to the bottom of your vehicle’s diagnostics by purchasing your own code reader, or you can bring your car to your local AutoZone and get it scanned as a part of our free Fix Finder service.Various angles and details of a "MaxScan OE509" - a fairly typical onboard diagnostics (OBD) handheld scanner from the first decade of the 21st century.
Additionally, while an OBD code is not necessarily specific to a certain make or model of vehicle, the steps required to remedy it likely depend on the type of car, truck or SUV you drive. That is, you may see a certain code on an OBD-II system for your BMW, Chevrolet, Chrysler, Dodge, Ford, GMC, Jeep, Subaru, Toyota or another type of vehicle. The error detected may be dependent on what different makes of vehicles are capable of generating. On most vehicles nowadays, there are hundreds of possible DTCs a car can generate. For example, if your vehicle’s OBD detects a leak in the evaporative emission system, you may see a P0442 code. Reading as a series of five letters and numbers, the DTC allows you to home in on the system that is not functioning properly. The diagnostic trouble code is the code your OBD generates to tell you something is wrong.If your vehicle has this system, you need an OBD-II diagnostic scanner to communicate with its OBD system. Since 1996, vehicles have an OBD-II diagnostic system. The OBD may alert you to problems with your vehicle’s engine, airbags, antilock brakes and other components. The on-board computer diagnostic system is the integrated tool that monitors many of your vehicle’s essential systems.
GM OBD1 DIAGNOSTIC TROUBLE CODES HOW TO
Of course, if your vehicle’s computer produces one, you need to know what your trouble code means.īefore exploring what each code means and how to fix it, you should understand two important concepts. Modern vehicles have internal computers that not only control the overall performance of your car, truck or SUV, but they also alert you to a problem by generating trouble codes.