當液壓油溫度傳感器連接線路發生斷、短路故障時,控制單元將無法獲得液壓油溫度信息控制自動變速器換擋,使控制系統出現故障。當故障指示燈點亮時,通過人工方法或使用專用儀表(器)可以讀取故障碼。變速器油溫度傳感器的檢測方法與前面所介紹的幾種溫度傳感器相似。
具體的檢測方法(fa)如(ru)下(xia)。
(1) 直觀檢查檢查變(bian)速器(qi)油溫度傳感器(qi)連接器(qi)有無松動(dong),線(xian)路有無破損或燒焦(jiao)等,若有,則應予以修復(fu)。
(2) 檢(jian)測(ce)變(bian)速(su)(su)器(qi)油(you)溫度(du)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)的(de)電源電壓(ya)(ya)拔下(xia)變(bian)速(su)(su)器(qi)油(you)溫度(du)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)連接器(qi),測(ce)量變(bian)速(su)(su)器(qi)油(you)溫度(du)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)插(cha)頭(tou)(線束側)電源端子(zi)與搭鐵之(zhi)間的(de)電壓(ya)(ya),應為(wei)5V左(zuo)右。 如果 電壓(ya)(ya)低或無電壓(ya)(ya),則檢(jian)修變(bian)速(su)(su)器(qi)油(you)溫度(du)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)與ECU之(zhi)間的(de)線路(lu),若(ruo)線路(lu)良(liang)好,則需(xu) 更換ECU。
(3) 檢測(ce)變速器(qi)(qi)(qi)油溫(wen)度(du)(du)傳(chuan)感(gan)器(qi)(qi)(qi)的(de)電(dian)阻(zu)拔下變速器(qi)(qi)(qi)油溫(wen)度(du)(du)傳(chuan)感(gan)器(qi)(qi)(qi)連接(jie)器(qi)(qi)(qi)后,可(ke)拆下傳(chuan)感(gan) 器(qi)(qi)(qi),放在有水(shui)的(de)熱(re)杯(bei)中(zhong),加(jia)熱(re)杯(bei)中(zhong)的(de)水(shui),測(ce)量(liang)各(ge)種(zhong)不同溫(wen)度(du)(du)下的(de)電(dian)阻(zu)值, 若檢測(ce)的(de)電(dian)阻(zu)值與標準值相差較大,則應更換液壓油溫(wen)度(du)(du)傳(chuan)感(gan)器(qi)(qi)(qi)。
(4) 檢(jian)測變(bian)(bian)(bian)(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)(qi)油(you)(you)(you)(you)溫(wen)度(du)(du)傳(chuan)感器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)信(xin)號(hao)電(dian)壓需要時(shi),還可進行(xing)變(bian)(bian)(bian)(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)(qi)油(you)(you)(you)(you)溫(wen)度(du)(du)傳(chuan)感器(qi)(qi)(qi)(qi)(qi)信(xin)號(hao) 電(dian)壓的(de)(de)(de)檢(jian)測。接(jie)好變(bian)(bian)(bian)(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)(qi)油(you)(you)(you)(you)溫(wen)度(du)(du)傳(chuan)感器(qi)(qi)(qi)(qi)(qi)連接(jie)器(qi)(qi)(qi)(qi)(qi)后,用直流電(dian)壓表測量變(bian)(bian)(bian)(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)(qi)油(you)(you)(you)(you)溫(wen)度(du)(du)傳(chuan)感器(qi)(qi)(qi)(qi)(qi)兩 端子(zi),或ECU的(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)(qi)油(you)(you)(you)(you)溫(wen)度(du)(du)傳(chuan)感器(qi)(qi)(qi)(qi)(qi)信(xin)號(hao)輸入(ru)端子(zi)的(de)(de)(de)電(dian)壓,檢(jian)查在不同(tong)溫(wen)度(du)(du)下的(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)(qi)油(you)(you)(you)(you) 溫(wen)度(du)(du)傳(chuan)感器(qi)(qi)(qi)(qi)(qi)信(xin)號(hao)電(dian)壓是(shi)否在規定的(de)(de)(de)范圍之(zhi)內。幫手汽配平(ping)臺提(ti)供各個車型變(bian)(bian)(bian)(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)(qi)油(you)(you)(you)(you)溫(wen)度(du)(du)傳(chuan)感器(qi)(qi)(qi)(qi)(qi)原(yuan)車配件的(de)(de)(de)訂購服務
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