What Is OBD2?
OBD2 (On-Board Diagnostics II) is a standardized automotive diagnostic system implemented in all vehicles manufactured after 1996. This protocol allows external devices to communicate with the vehicle's computer.
History of OBD2
The OBD2 system was introduced by the EPA (Environmental Protection Agency) in the United States to monitor pollutant emissions. Over time, it has become an essential tool for diagnosing mechanical problems.
How Does It Work?
The system works through various sensors installed in the vehicle that constantly monitor:
- Fuel System: Monitors the air-fuel mixture
- Ignition System: Checks for misfires
- Emissions: Controls the catalytic converter and oxygen sensors
- Transmission: Monitors gear shifts and temperature
Diagnostic Codes (DTC)
When a problem is detected, the system generates a DTC (Diagnostic Trouble Code). These codes follow a pattern:
- P: Powertrain (engine and transmission)
- B: Body (bodywork and accessories)
- C: Chassis (brakes, suspension)
- U: Network (communication between modules)
Why Evo is Superior?
While traditional scanners only show codes, Evo interprets these codes using AI, providing:
- Explanations in simple language
- Problem severity
- Recommended solutions
- Cost estimates
With Evo, you don't need to be a mechanic to understand what's happening with your vehicle!