DME 5.2.2 Diagnosis: General: Notes

Requirements for the OBD II System:

• Testing of the Three-Way Catalytic Converter efficiency.
• Recognition of combustion misfire
• Monitoring of the tank ventilation system.
• Monitoring of the secondary air injection.
• Monitoring of the adaptation limitation of the oxygen sensor system.
• Monitoring of the oxygen sensors.
• Monitoring of other emission relevant components (up to now OBD I component).
• Triggering the Malfunction Indicator Lamp (MIL) and fault memory.
• Protection against manipulation of control modules.
• Indication of the monitoring readiness (ready code).
• Indication of the Diagnostic Trouble Code.
• Storing of operation parameters in the event of a fault (freeze frame).
• Functional evidence of the OBD-system (trip, warm-up cycle, driving cycle).
• Standardized control module tester (Scan Tool).
• Standardized read out of operating data such as RPM, temperature, etc.