ONBOARD DIAGNOSTIC SYSTEM — OBD II.

2022 Jeep Wrangler Onboard Diagnostic System OBD II User Manual ONBOARD DIAGNOSTIC SYSTEM — OBD II Your vehicle is equipped with a sophisticated Onboard Diagnostic system called OBD II. This system monitors the performance of the emissions, engine, and transmission control systems. When these systems are operating properly, your vehicle will provide excellent performance and … Read more