That’s a question we hear a lot, and it has a couple of layers to it. The straightforward answer is yes, almost any OBD2 reader can access the “P” codes on most vehicles. These “P” codes relate to powertrain issues, but that’s not the whole story, especially when you’re dealing with potentially older vehicle systems.
For comprehensive diagnostics, especially if you need to delve into systems beyond the engine, like Transmission and ABS, the capabilities of your OBDII or EOBD scanner become much more critical. While specialized and often expensive tools like the original Jaguar PDU (Problem Diagnostic Unit) can handle virtually everything, and the legacy WDS (Worldwide Diagnostic System) is also very capable, these are not everyday tools for the average user.
For a more accessible option that bridges the gap, consider tools like the Genrad 500 or 510 handheld code readers. These are designed to monitor system points and retrieve a wide range of diagnostic trouble codes. Importantly, while they excel at reading codes and monitoring data, they typically don’t offer advanced functions like resetting throttle position sensors (TPS) or recalibrating oxygen sensors. They are primarily focused on code reading and data stream monitoring, which for many DIY mechanics and enthusiasts, is exactly what’s needed. These units, though less common now, occasionally appear on the used market and represent a robust option for deeper diagnostics beyond basic OBDII readers.
Moving to more modern and readily available tools, brands like AUTEL and FOXWELL are popular in the automotive repair world. The question often arises: can AUTEL or FOXWELL units read ABS and Transmission codes on a broader range of vehicles, including older models that might predate full OBDII standardization? While specific model compatibility can vary, it’s generally advisable to check user forums and product specifications to confirm if a particular scanner model supports the specific vehicle and systems you need to diagnose. Searching online forums dedicated to your car’s make and model can often yield user experiences with different scanners.
To give you a clearer picture of tested compatibility, here’s a compilation of OBDII/EOBD scanners and their reported performance on various vehicle models. This list, gathered from user feedback, can help guide you in choosing a scanner that meets your needs:
- AutoEnginuity (Enhanced diagnostics for some makes/models available at extra cost; potential issues with pre-1996 vehicles)
- TOPTQK
- Innova 2030
- Innova 3030
- Innova 3100 (CAN compatible)
- Innova 3100f
- Innova 3120
- Innova 3130
- CodeKey
- Actron CP9035
- Actron CP9175
- Actron CP9180
- Actron CP9185
- Actron CP9575
- Actron CP9580A
- BAFX BAFX (with Torque app for Android)
- OBDkey
- OBDCOM
- CEN-TECH 94169
- CEN-TECH 98614-2VGA Scanner (Real-time data logging)
- CanOBD2 3030
- carcode.com software & cable
- Craftsman 87702 (Innova 3100g)
- ELM327 (Bluetooth or wired, with Torque app for Android)
- Kiwi PLX Bluetooth (with Torque app for Android)
- Memoscan U480
- ProScan (www.myscantool.com)
This list showcases a range of OBDII code readers and EOBD scanners that users have successfully employed for vehicle diagnostics. When selecting a scanner, consider not just its ability to read basic “P” codes, but also its capacity to access deeper systems like ABS and Transmission, especially if you are working with a vehicle that may utilize pre-OBDII or early OBDII protocols. Always verify compatibility with your specific vehicle year, make, and model before purchasing an OBDII code reader or EOBD scanner to ensure it meets your diagnostic needs.
