OBD Code Search
Search OBD/OBD2 codes.
Example: P3140
OBD Code
On-board diagnostics (OBD) is an automotive term referring to a vehicle's self-diagnostic and reporting system. OBD systems give the vehicle owner or repair technician access to the status of the various vehicle emissions and control systems.
The products are under continuous development. Vehicles and components produced after the above date may therefore have different specifications and repair methods. When this is deemed to have a significant bearing on this manual, an updated version of this manual will be issued to cover the changes.
What does the OBD system do?
OBD code is stored in the OBD system and can only be accessed by connecting a scan, or diagnostic tool into the EOBD diagnostic socket and reading the DTC off the display of the scanner.
- Body (B-codes)
- covers functions that are, generally, inside of the passenger compartment. These functions provide the driver with assistance, comfort, convenience, and safety.
- Chassis (C-codes)
- covers functions that are, generally, outside of the passenger compartment. These functions typically include mechanical systems such as brakes, steering and suspension.
- Powertrain (P-codes)
- covers functions that include engine, transmission and associated drivetrain accessories.
- Network & Vehicle Integration (U-codes)
- covers functions that are shared among computers and systems on the vehicle.
OBD2 Code Structure
First unit identifies the type of obd error code:
Bxxxx for body
Cxxxx for chassis
Uxxxx for class 2 network
Second digit shows whether the code is manufacturer unique or not:
x1xxx for manufacturer-specific code
Third digit shows us what system the trouble code references:
xx3xx shows ignition system
xx4xx shows emissions systems
xx5xx references speed/idle control
xx6xx deals with computer systems
xx7xx/xx8xx involve the transmission
xx9xx notates input/output signals and controls
Digits four and five show the specific failure code.