When it comes to diagnosing car troubles, an OBD2 code reader is an invaluable tool. Many car owners and mechanics wonder about the extent of their capabilities, particularly when faced with diverse vehicle systems and error codes. The question often arises: what kind of codes can a standard OBD2 code reader actually access?
The simplest answer is that virtually any OBD2 reader you pick up will be able to retrieve “P” codes. These “P” codes, or powertrain codes, are standardized across the automotive industry and relate to issues within the engine and transmission systems. If your check engine light is on, a basic OBD2 reader will likely be able to tell you why by pulling these P-codes.
However, the diagnostic landscape becomes more complex when you need to delve deeper into other vehicle systems. For issues related to systems like the Transmission or ABS (Anti-lock Braking System), a standard, entry-level OBD2 reader might fall short. These readers are often limited to the generic “P” codes mandated for emissions-related diagnostics.
For comprehensive diagnostics, especially on older or luxury vehicles, specialized tools become necessary. In the realm of advanced diagnostic equipment, tools like the original factory-level diagnostic systems such as the PDU (Problem Diagnosis Unit) and WDS (Worldwide Diagnostic System) were designed to access virtually all systems. The PDU is exceptionally rare, and the WDS, while powerful, has some limitations like resetting base idle adaptations. These professional-grade systems can read codes across all modules and often offer functionalities beyond basic code reading.
Stepping down from these top-tier, expensive options, we find tools like the Genrad 500 or 510 handheld code readers. These offer a balance by providing access to a broader range of codes and the ability to monitor data points. Crucially, they can often read codes beyond just the “P” codes, potentially including Transmission and ABS codes depending on the vehicle. While not capable of advanced functions like resetting throttle position sensors or recalibrating oxygen sensors, they serve as robust code readers and system monitors.
For those seeking more affordable yet capable options, brands like AUTEL and FOXWELL are popular choices. The ability of these units to read ABS and Transmission codes on older vehicles can vary. It’s advisable to research specific models and check user forums for compatibility reports, particularly from owners of vehicles with engines similar to yours. Real-world testing and user feedback are invaluable in determining if a particular reader will access the specific codes you need for your car.
Numerous OBD2 reader models have been tested on various vehicles, demonstrating a range of compatibility. Here are some examples of tested OBD2 readers and their reported compatibility with different car models:
- AutoEnginuity (enhanced options available for wider compatibility)
- TOPTQK
- Innova (various models like 2030, 3030, 3100, 3100f, 3120, 3130)
- CodeKey
- Actron (CP9035, CP9175, CP9180, CP9185, CP9575, CP9580A)
- BAFX BAFX (with Torque app)
- OBDkey
- OBDCOM
- CEN-TECH (94169, 98614-2VGA Scanner)
- CanOBD2 3030
- carcode.com software and cable
- Craftsman 87702 (Innova 3100g)
- ELM327 (with Torque app)
- Kiwi PLX bluetooth (with Torque app)
- Memoscan U480
- ProScan (from myscantool.com)
This list, compiled from user experiences, highlights the diverse range of OBD2 readers that have been successfully used on various vehicles. When selecting an OBD2 code reader, especially if you need to access codes beyond the basic “P” codes, consider researching model-specific compatibility and user reviews to ensure it meets your diagnostic needs. Understanding the limitations of basic readers and the capabilities of more advanced tools will help you choose the “Codes For Obd2 Code Reader” that is right for you and your vehicle.
