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故障现象一辆2010年5月份出厂的丰田锐志车(车型为GRX122L-AETQKC),累计行驶里程为1.4万km,该车在行驶中左侧B柱处偶尔出现“哒哒哒”类似继电器触点吸合的异响声。故障诊断由于此异响声时有时无,顾客前几次来店试车时都没能再现异响声,在同顾客交谈问诊过程中了解到,该异响的出现不受路况、冷热机和车速等因素的影响,异响出现时可能连续响一会儿,也可能响几个小时,有时将发动机熄火再重新起动,该声音就可能消失,因此该故障的出现
Symptom A May 2010 factory Toyota Reiz car (model GRX122L-AETQKC), the cumulative mileage of 14,000 km, the car driving in the left B column occasionally “da da da ” similar to the relay The sound of contact pull-in noise. Fault diagnosis due to the noise sometimes no sound, the customer several times before the shop test car failed to reproduce abnormal sound, chatting with the customer during the consultation process that the abnormal sound from the road, hot and cold machines and Speed and other factors, the abnormal sound may occur continuously for a while, may also ring a few hours, and sometimes the engine flame out and restart, the sound may disappear, so the failure of