Readiness code
Readiness code ( English for "readiness code") or Prüfbereitschaftstest is part of the engine electronics in all vehicles with OBD . Not all components of a vehicle relevant to emissions can be monitored under every operating or driving condition. The readiness code consists of a binary code with 12 digits (the 12th digit is not used here). A "0" stands for assembly tested or not installed and a "1" for not yet tested.
The following assemblies are integrated in the readiness code of a gasoline engine: misfire detection, fuel system, other systems, catalytic converter, heated catalytic converter, tank ventilation system, secondary air system, air conditioning, lambda probe, lambda probe heating, exhaust gas recirculation and valve adjustment.
The following assemblies are included in the readiness code of a diesel engine: misfire detection, fuel system, other systems, oxidation catalytic converter, nitrogen oxide exhaust gas treatment, boost pressure, exhaust gas sensors, particle filters, exhaust gas recirculation and valve adjustment.
The readiness code can be read out with a suitable device ("diagnostic tester" or vehicle diagnostic system ) and is used to identify whether all the vehicle's emission-related assemblies have been checked as part of the OBD. The query of the readiness code is part of the examination of the engine management and emission control system on a vehicle with OBD.
literature
- Werner Zimmermann and Ralf Schmidgall: Bus systems in vehicle technology - protocols, standards and software architecture . Vieweg + Teubner, 4th edition, 2010, ISBN 978-3-8348-0907-0