Understanding Your Car’s OBD Codes

Vehicle manufacturers have made it easy for auto mechanics to diagnose your auto problems by creating On Board Diagnostics (OBD) codes. Unfortunately, these codes can only be read by certain machines and that leaves the average automobile consumer in the dark. But fortunately, you can buy one of these devices for around $50. Or you can take your car to a major auto parts store like AutoZone and they will probably test your car for free. But if you’re still stuck as to what exactly those codes mean, the following may enlighten you.

Why Engine Codes?

On Board Diagnostics is now in its second edition (OBD-II) and was set as the industry standard once it was introduced into most vehicle models in 1996. The OBD-II monitors engine controls and other parts of the vehicle, such as the chassis, the body and the brakes.
Reading the Codes
OBD-II Diagnostic Trouble Codes (DTC) vary depending on your vehicle’s make and model. However, a short rundown of generic codes includes:
P001-P90099 – Fuel and Air Metering and Auxiliary Emission Controls
P0100-P0199 – Fuel and Air Metering
P0200 – P0299 – Fuel and Air Metering (Injector Circuit)
P0300 – P0399 – Ignition System or Misfire
P0400 – P0499 – Auxiliary Emissions Controls
P0500 – P0599 – Vehicle Speed Controls and Idle Control System
P0600 – P0699 — Computer Output Circuit
P0700 – P0899 – Transmission

Never Diagnose a Vehicle Yourself

It is recommended that you purchase a code reader so that you always know what your vehicle is trying to tell you. But be aware that a vehicle’s engine and individual components are incredibly complex, and most often high-tech. That means you will need professional training and knowledge in order to make sense of most vehicle diagnostic trouble codes. That is why it is recommended that you always get your vehicle diagnosed, maintained and serviced by a professional. But not just any professional. You need a professional who is certified, trained and one who focuses on quality and customer service.
One you have figured out what your car is trying to tell you, you can use that knowledge to check your auto mechanic’s work. If you both come out with different codes, you’ll know that there’s a serious problem. But it’s always best to trust the professional, as figuring out what’s wrong with your car is exactly what they’re paid to do.
Finding the perfect mechanic is never easy. If you have vehicle trouble or you just need regular vehicle maintenance, visit Auto Air & Electric, where you’ll find this and much more, including vehicle OBD codes.