Some complaints will require a test drive as part of a diagnostic test or repair verification procedurThe purpose of the test drive is to try and duplicate the diagnostic trouble code and/or symptom condition.

• 有些故障需要一个测试驾驶作为诊断测试的一部分，或者需要一个确认过程。测试驾驶的目的是尝试并复制诊断出错代码和/或故障条件。