| 摘要 |
<p>The method involves storing information about occurrence and/or type of malfunction of operational information in a drive arrangement (16), if a malfunction of a heater (14) e.g. fuel supply arrangement, and/or the drive arrangement occurs, where the operational information includes additional information during operating a heater control unit (28) and the drive arrangement. The information includes a date of occurrence of malfunction, a time of occurrence of malfunction of ambient temperature and interior temperature, and a time of occurrence of malfunction on board voltage.</p> |
