Process and arrangement for detecting the operability of an oxygen measurement probe

摘要

In a process for detecting the operability of an oxygen measurement probe, which is installed in the exhaust gas duct of an internal combustion engine and together with an adjustment system serves to regulate the mixture preparation for the internal combustion engine, the voltage applied to the oxygen measurement probe is measured sequentially for two different load conditions, and the internal resistance is calculated from the measurement results and compared with a specified value. <IMAGE>