USA: California proposes industry-standard OBD-II, but for EVs

The rules also require automakers to show battery data within a menu, which drivers can easily access.

According to a media report, California is proposing an industry-standard diagnostic system for EVs. The new standardized system is expected to debut in 2026 and could give rise to the creation of an OBD-II, specifically for electric vehicles.

Currently, electric vehicles have their own diagnostic capabilities, however, none are subject to an industry standard for OBD. This is similar to combustion-powered cars, which had the same issue until the 1990s. However, the California Air Resources Board (CARB), and later, the EPA, mandated a standardised OBD-II for all cars.

For EVs, CARB states that the regulations cover all aspects, including the battery pack, power electronics, charging system & thermal systems – all of which will be accessible to dealers & independent shops. Having said that, the report states that having a standardized OBD system in EVs is more than just having a universal port. The introduction of an industry-standard OBD would also require EVs to have common hardware and underlying systems to scan and report faults.

The rules also require automakers to show battery data within a menu, which drivers can easily access. This, reportedly, will not only help make owning an EV less daunting but also make servicing easier.

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