正確連接(jie)(jie)點煙器(qi)三根線(xian)，需先明(ming)確各線(xian)功能(neng)，關閉車輛(liang)電(dian)源后(hou)按規則連接(jie)(jie)。

點(dian)煙器三(san)根線(xian)(xian)(xian)顏色(se)、功能因車(che)(che)(che)型而異(yi)。通常紅(hong)色(se)為電(dian)(dian)(dian)(dian)源(yuan)線(xian)(xian)(xian)，提(ti)供(gong) 12V 電(dian)(dian)(dian)(dian)壓(ya)，連接車(che)(che)(che)輛(liang)(liang)電(dian)(dian)(dian)(dian)源(yuan)正(zheng)(zheng)極(ji)，如保(bao)險絲盒(he)處；黑色(se)是地線(xian)(xian)(xian)，即(ji)負極(ji)線(xian)(xian)(xian)，用于回路，連車(che)(che)(che)輛(liang)(liang)金屬部件；藍色(se)或綠色(se)是控制線(xian)(xian)(xian)，功能不(bu)定。連接時，關閉車(che)(che)(che)輛(liang)(liang)電(dian)(dian)(dian)(dian)源(yuan)是基本安全要求，防(fang)(fang)止觸電(dian)(dian)(dian)(dian)及短(duan)路。連接順序上，先(xian)接電(dian)(dian)(dian)(dian)源(yuan)線(xian)(xian)(xian)與正(zheng)(zheng)極(ji)，保(bao)證電(dian)(dian)(dian)(dian)力(li)供(gong)應(ying)；再接地線(xian)(xian)(xian)，形成(cheng)完整回路；最后接控制線(xian)(xian)(xian)，依(yi)車(che)(che)(che)輛(liang)(liang)電(dian)(dian)(dian)(dian)路設計操作。此外，要確(que)認電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)標識，保(bao)持接線(xian)(xian)(xian)整潔，絕緣處理裸露電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)，檢查接線(xian)(xian)(xian)情況。接線(xian)(xian)(xian)穩(wen)固性很重要，防(fang)(fang)止接觸不(bu)良。

連接點煙(yan)(yan)器三根線(xian)，要牢記各線(xian)功(gong)能與(yu)連接位置，遵循操作順序(xu)，注重安全與(yu)穩固性。謹慎對待每一步，確保點煙(yan)(yan)器正常工作，保障車輛電(dian)氣系統安全穩定運行 。