Focus MK3 TDCi 喇叭異常 - 汽車
By Jack
at 2021-01-06T09:39
at 2021-01-06T09:39
Table of Contents
這台車已經七年了,開得很少才四萬多公里。
汽車喇叭出問題已經有一陣子,
就是按下方向盤喇叭,
喇叭會出現聲音很小或是類似破音無力的問題。
(嘗試過不同的喇叭按鈕位置 都依舊會破音)
(基本可以排除 按鈕接點問題)
原本是懷疑電瓶沒電,於似乎就開始一連串的除錯。
MK3 TDCi(C346) 原廠標配雙音蝸牛喇叭是義大利製的。
價格不便宜,Bosch 頂多五百以內解決。
(*原廠報價料錢大約 1500上下)
因為時好時壞,電瓶也剛換沒很久,
後來懷疑是喇叭本體壞掉,
當初回原廠也有跟技師提這問題,
但是回廠時測試都正常。。。。。。。
所以就沒有繼續裡她了。
直到最近又開始發作了,
上網估狗一下發現 MK3 這問題不外乎是方向盤上接點故障、
繼電器故障、喇叭本體故障。
https://youtu.be/C7u3jPkNIWE
因為喇叭本體是會發聲只是破音,所以當初先排除繼電器故障,
但是後來想繼電器老化不良也有可能時好時壞。
(處理過機車雷霆150 停等紅燈自己熄火發不動就是繼電器不良)
就淘了好幾顆同款繼電器來更換看看。
(淘寶價大約台灣原廠價的 5分之一)
更換後測試兩天喇叭聲音又回復宏亮紮實的狀態了。
繼電器料號(亞太件/Jugar電壓電流同也可流用):
(5M5T-14B192-AA 12V20A)
https://i.imgur.com/yAT3bMy.jpg
位置在引擎室保險絲盒R2繼電器(喇叭用):
https://i.imgur.com/nRPI9zy.jpg
R2繼電器4腳 12V20A
https://i.imgur.com/Hm9lQ8i.jpg
https://i.imgur.com/ipjnhox.jpg
故障繼電器時好時壞,拆開看未明顯氧化,
但未通電狀態呈現吸合導通,
可以判斷這繼電器已經不良了。
https://i.imgur.com/PmH5OAd.jpeg
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