LAUNCH                 Creader V+ User’s Manual 
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2.3 Location of the Data Link Connector (DLC) 
The DLC (Data Link Connector or Diagnostic Link Connector) is the 
standardized 16-cavity connector where diagnostic code readers interface with 
the vehicle's on-board computer. The DLC is usually located 12 inches from the 
center of the instrument panel (dash), under or around the driver’s side for most 
vehicles. If Data Link Connector is not located under dashboard, a label should 
be there telling location. For some Asian and European vehicles, the DLC is 
located behind the ashtray and the ashtray must be removed to access the 
connector. If the DLC cannot be found, refer to the vehicle’s service manual for 
the location. 
 
2.4 OBD II Readiness Monitors 
An important part of a vehicle’s OBD II system is the Readiness Monitors, which 
are indicators used to find out if all of the emissions components have been 
evaluated by the OBD II system. They are running periodic tests on specific 
systems and components to ensure that they are performing within allowable 
limits. 
 
Currently, there are eleven OBD II Readiness Monitors (or I/M Monitors) defined 
by the U.S. Environmental Protection Agency (EPA). Not all monitors are 
supported in every vehicles and the exact number of monitors in any vehicle 
depends on the motor vehicle manufacturer’s emissions control strategy. 
 
Continuous Monitors -- Some of the vehicle components or systems are 
continuously tested by the vehicle’s OBD II system, while others are tested only 
under specific vehicle operating conditions. The continuously monitored 
components listed below are always ready: 
1)Misfire