I/M Readiness function is used to check the operations of the Emission System on OBD2 compliant vehicles. The Proscan Automotive Tool is a go-to tool for quick vehicle health status. Proscan Automotive scanner not only reads and clear normal codes, but also retrieves generic (P0, P2, P3 and U0), manufacturer-specific (P1, P3 and U1), and pending codes.
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