VDO CONTISYS OBD Instruction Manual

Also see for CONTISYS OBD -: Brochure Manual Quick reference guide Quick reference guide Instruction manual

EOBD Application16System ReadinessWhen the ignition is turned on the vehicles control modules perform a number of testson the system (System Readiness tests). If the conditions are not correct for thecontroller to perform the test e.g. if the engine is too cold, "Not Ready" status will bereported. Readiness test status is also offered for inspection after communicationshave been established. These may be reviewed or ignored until later.The service tool allows the user to do continual reads of the status of the SystemReadiness tests i.e. whether the test is not supported, waiting to complete or hascompleted. This status can help a technician verify a repair in that they can check thatthe readiness tests that may have generated a DTC have run to completion. Thefollowing sub menu will let the user display the results in two ways.The option 'Show As A List' will give the user the options of 'DTCs Last Cleared' and'Current Drive Cycle'. The selection 'DTCs Last Cleared' is normally found on allEOBD vehicles and shows the status since the last clearing of DTCs, but it may notbe valid for the current drive cycle. The option 'Current Drive Cycle' will display thestatus of the tests for the current drive cycle, but this is rarely supported on vehiclesat this time.The option 'All On One Screen' will show an abbreviated text version of the status forall the tests since 'DTCs Last Cleared'.In both cases the service tool is continually updating the status displayed for each test.Tester SetupThis allows the user to select the units displayed in Live Data and Freeze Frame fromeither metric or imperial. The user may also select from abbreviated text or full textphrases. For more information, see ‘Diagnostic connector locations’, page 57.SYSTEM READINESS1. Show As A List2. All On One Screen