For car owners and DIY mechanics, understanding what’s happening under the hood is crucial. When the check engine light comes on, or you suspect issues with other systems like ABS, SRS, or transmission, a reliable scan tool becomes indispensable. The question then arises: what is the Best Scan Tool For Car That Can Read Everything? In today’s market, there’s a wide array of options, from basic code readers to professional-grade diagnostic scanners. Let’s delve into what to look for when you need a scan tool that truly covers all the bases.
Basic, entry-level scan tools, like some of the AL series mentioned in online discussions, are often affordable and great for reading basic OBDII engine codes. However, their capabilities are limited. They might not access systems beyond the engine and transmission, such as ABS (Anti-lock Braking System), SRS (Supplemental Restraint System – airbags), or deeper into transmission control modules (TCM). For comprehensive diagnostics, especially on a wide range of vehicle makes and models, you’ll need to step up to a more advanced scanner.
When seeking a scan tool that “reads everything,” you’re essentially looking for an all system diagnostic scanner. These advanced tools are designed to communicate with virtually all electronic control units (ECUs) in your vehicle. Brands like Autel are well-regarded in this category. Models such as the older DS708 and the newer MS906 and MS906BT are known for their extensive vehicle coverage and deep diagnostic capabilities. These scanners go beyond just reading codes; they often offer features like:
- Reading and clearing codes from all available modules (Engine, Transmission, ABS, SRS, Body Control, etc.)
- Live data streaming to monitor sensor readings in real-time
- Actuation tests to verify component functionality
- Service functions such as oil reset, electronic parking brake release, and battery registration
- Potential for software updates to expand vehicle coverage and add new features
While these advanced scanners come at a higher price point compared to basic code readers, the investment can be worthwhile if you need in-depth diagnostics across various vehicle systems and across different car brands. It’s always recommended to check the manufacturer’s website, like Autel’s, to confirm vehicle compatibility and specific features of each model to ensure it meets your needs for comprehensive scanning. For older vehicles, and especially if you work on a variety of makes, a scanner with broad compatibility and update capability is truly the “best scan tool for car that can read everything” you need.
