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(ti)的檢測方法如(ru)下。
(1) 直觀檢查檢查變速器(qi)(qi)油溫度傳感(gan)器(qi)(qi)連接器(qi)(qi)有(you)無松(song)動,線路有(you)無破損或燒焦等,若有(you),則應予以修(xiu)復。
(2) 檢測變(bian)(bian)速(su)器(qi)油(you)溫(wen)(wen)度傳感(gan)器(qi)的(de)電(dian)(dian)源電(dian)(dian)壓拔下變(bian)(bian)速(su)器(qi)油(you)溫(wen)(wen)度傳感(gan)器(qi)連接器(qi),測量(liang)變(bian)(bian)速(su)器(qi)油(you)溫(wen)(wen)度傳感(gan)器(qi)插頭(線束側)電(dian)(dian)源端子與(yu)搭鐵(tie)之(zhi)間(jian)的(de)電(dian)(dian)壓,應為(wei)5V左右。 如果 電(dian)(dian)壓低(di)或無電(dian)(dian)壓,則檢修變(bian)(bian)速(su)器(qi)油(you)溫(wen)(wen)度傳感(gan)器(qi)與(yu)ECU之(zhi)間(jian)的(de)線路,若線路良好,則需(xu) 更換ECU。
(3) 檢測變速器(qi)(qi)油溫(wen)(wen)度傳感(gan)器(qi)(qi)的電阻拔下(xia)變速器(qi)(qi)油溫(wen)(wen)度傳感(gan)器(qi)(qi)連(lian)接器(qi)(qi)后,可拆下(xia)傳感(gan) 器(qi)(qi),放在(zai)有(you)水的熱(re)杯中,加熱(re)杯中的水,測量各種不同溫(wen)(wen)度下(xia)的電阻值, 若(ruo)檢測的電阻值與標準(zhun)值相差較(jiao)大,則(ze)應更換液(ye)壓油溫(wen)(wen)度傳感(gan)器(qi)(qi)。
(4) 檢(jian)測(ce)變(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)油(you)(you)溫(wen)(wen)度(du)(du)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)信號(hao)電(dian)壓(ya)(ya)(ya)需要(yao)時,還可進行變(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)油(you)(you)溫(wen)(wen)度(du)(du)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)信號(hao) 電(dian)壓(ya)(ya)(ya)的(de)(de)(de)(de)檢(jian)測(ce)。接好變(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)油(you)(you)溫(wen)(wen)度(du)(du)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)連接器(qi)(qi)(qi)(qi)后(hou),用直流電(dian)壓(ya)(ya)(ya)表(biao)測(ce)量(liang)變(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)油(you)(you)溫(wen)(wen)度(du)(du)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)兩 端(duan)子(zi),或(huo)ECU的(de)(de)(de)(de)變(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)油(you)(you)溫(wen)(wen)度(du)(du)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)信號(hao)輸(shu)入端(duan)子(zi)的(de)(de)(de)(de)電(dian)壓(ya)(ya)(ya),檢(jian)查在不同溫(wen)(wen)度(du)(du)下的(de)(de)(de)(de)變(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)油(you)(you) 溫(wen)(wen)度(du)(du)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)信號(hao)電(dian)壓(ya)(ya)(ya)是否在規定的(de)(de)(de)(de)范圍之內。幫(bang)手汽配平臺提供(gong)各個車型(xing)變(bian)(bian)速(su)(su)(su)器(qi)(qi)(qi)(qi)油(you)(you)溫(wen)(wen)度(du)(du)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)原車配件(jian)的(de)(de)(de)(de)訂購服務
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