轎車自動變速器的故障往往是由發動機和電控系統引起，也有是由自動變速器本身引起，在進行檢修之前,根據由簡入繁、由易到難的原則，應先將故障部位大致分清(即發動機故障還是自動變速器故障)。若變速器帶有自我診斷系統，則應先進行自診。檢查自動變速器鼓掌一般按以下程序進行:
The faults of automatic transmissions in sedans are often caused by the engine and electronic control system, as well as by the automatic transmission itself. Before conducting maintenance, based on the principles of simplicity to complexity and ease to difficulty, the fault location should be roughly distinguished (i.e. engine fault or automatic transmission fault). If the transmission is equipped with a self diagnosis system, a self diagnosis should be conducted first. The following procedure is generally followed for checking automatic transmission applause:
(1)先進行基礎檢查:如變速器油的質量和數量是否合適;節氣門拉線記號是否正確;變速操縱桿系及空檔啟動開關是否工作正常;空轉轉速是否合適;輪胎氣壓是否標準。
(1) First, conduct a basic inspection: such as whether the quality and quantity of transmission oil are appropriate; Is the marking of the throttle cable correct; Check if the speed control lever system and neutral start switch are working properly; Is the idle speed appropriate; Is the tire pressure standard.
(2)然后進行時速試驗:以檢查發動機和自動變速器的性能。
(2) Then conduct a speed test to check the performance of the engine and automatic transmission.
(3)時滯試驗:對液壓管道進行基礎檢查后，通過液壓試驗來確認液壓系統是否有故障。
(3) Time delay test: After conducting a basic inspection of the hydraulic pipeline, hydraulic testing is conducted to confirm whether the hydraulic system is malfunctioning.
(4)后道路試驗:通過路試，進一步檢查變速器的性能，確認故障發生的部位，為變速器檢修提供依據。
(4) Post road test: Through road test, further check the performance of the transmission, confirm the location of the fault, and provide a basis for transmission maintenance.
