Launch CRP123 User Manual

Launch CRP123 User Manual Manual pdf 12 page image

3LAUNCH Creader Professional CRP123 User's Manualon-board computer. The DLC is usually located 12 inches from the center of theinstrument panel (dash), under or around the driver’s side for most vehicles. IfData Link Connector is not located under dashboard, a label should be theretelling location. For some Asian and European vehicles, the DLC is locatedbehind the ashtray and the ashtray must be removed to access the connector. Ifthe DLC cannot be found, refer to the vehicle’s service manual for the location.Figure 2-22.4 OBD II Readiness MonitorsAn important part of a vehicle’s OBD II system is the Readiness Monitors, whichare indicators used to find out if all of the emissions components have beenevaluated by the OBD II system. They are running periodic tests on specificsystems and components to ensure that they are performing within allowablelimits.Currently, there are eleven OBD II Readiness Monitors (or I/M Monitors) definedby the U.S. Environmental Protection Agency (EPA). Not all monitors aresupported in every vehicles and the exact number of monitors in any vehicledepends on the motor vehicle manufacturer’s emissions control strategy.Continuous Monitors -- Some of the vehicle components or systems arecontinuously tested by the vehicle’s OBD II system, while others are testedonly under specific vehicle operating conditions. The continuously monitoredcomponents listed below are always ready:1. Misfire2. Fuel System3. Comprehensive Components (CCM)Once the vehicle is running, the OBD II system is continuously checking theabove components, monitoring key engine sensors, watching for engine misfire,