![]() ![]() See Check Engine Light and Onboard Diagnostics (OBD) ![]() It also contains information on pending codes, potential problems which have not got bad enough to turn on the check engine light. In addition to turning on the Check Engine light on your dash (also called a "MIL" or Malfunction Indicator Light) when it detects a problem it also contains other engine parameters such as idle speed settings. It is usually located in a computer module called a The Powertrain Control Module (PCM), in your engine compartment. Onboard Diagnostics II (OBD II or OBD2, OBD-II) is a second-generation emissions diagnostic system required by the U.S. Usually under the dash on the middle or drivers side. ![]() Overview | Hardware readers | Laptop Interface | Mobile Device Interfaceĭiagnostic code readers and Scan Tools allow you to read Diagnostic Trouble Codes (DTCs) in your cars Powertrain Control Module (PCM) which caused your check engine light to come on.Īllows the Code Scanner or Scan Tool to communicate or "plug into" your vehicle's computer(s). Diagnostic code readers Don's Home Products Diagnostic code readers
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