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一辆CA1091汽车的前照灯在踩1下制动踏板时居然亮起。驾驶员以为线束内出现了有关导线短接的情况,从仪表盘到底盘查找了一番,没有发现问题。即然前照灯亮起,灯光继电器必然工作,因此检查时踩下制动踏板的同时倾听灯光继电器的响声,确实听到了触点闭合的“咔哒”声,说明电流此时通过制动开关后面的电路流到了灯光继电器的线圈内。再一次踩下制动踏板观察,发现右制动灯不亮,拆下灯罩一看,灯泡烧坏了。换上好的灯泡,制动灯正常亮起,前照灯也不跟着制动踏板发亮了。制动灯泡烧坏却牵连到前照灯工作异常的现象从来没有遇到过,为什
The headlights of a CA1091 car actually lit when the brake pedal was depressed. The driver thought that there was a situation in the wiring harness about the short-circuit of the wires. From the dashboard to the chassis, there was no problem found. Now that the headlamps light up and the light relay must work so check the brake pedal while listening to the sound of the light relay and indeed hear the “click” sound of the contact closure, indicating that the current passes through the brake switch The circuit flows into the coil of the light relay. Depressed the brake pedal again and found that the right brake light is not bright, remove the lamp cover, the lamp burned out. Replace with a good light bulb, brake lights normal light, the headlamps do not follow the brake pedal shiny. Brake lamp burn but implicated in the phenomenon of headlamp abnormalities have never been encountered, why