| 摘要 |
A first detection device detects radio waves from a wireless key. A second detection device has a smaller detection range than the first detection device also detects radio waves from the key. The operation of an operator control element for switching the motor vehicle on and/or off performs a search process using the first detection device and then, if a key associated with the motor vehicle has not been found by the first detection device, performance of a search process using the second detection device from a fallback instant. Subsequent to the fallback instant the first and second detection devices perform a search process at least intermittently in parallel or alternately. |
