所有电磁阀供电故障
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下一篇 2010-03-07 13:26:55 / 天气: 晴朗
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故障码中所涉及的电磁阀阀，是指ABS控制模块总成中的各制动分水排污泵管路的进、排油高压电磁阀，根据故障内容含义.很直观地就能想到最大的可能性是电源方面出了问题。打开发动机舱左后方的保险丝盒盖.对ABS电控系统的10、22、34号保险丝进行测量.正常。另外，在保险丝盒内.还有众多的继电器.其中有两个标有ABS记号，估计是ABS液压气动隔膜泵排污泵和电磁阀所用。经过初步检查得知.灰色的为ABS液压气动隔膜泵排污泵继电器，红色的为ABS电磁阀继电器.是一种最常见的ABS系统的供电方式。打开红色的电磁阀继电器外壳.查看里面的触点开关状况.没有烧蚀迹象，测量控制线圈阻值为90Ω，在标准范围内。将电磁阀阀继电器插回，打开点火开关.此时可看到继电器触点吸合O5s后断开，这说明ABS控制模块对继电器有所控制，至于吸合后为何又弹开，应该是系统监测到电路故障后的失效保护功能。接下来的检测工作.就是耍对继电器的电源输出状况进行测量。ABS控制模块位于真空助力器下方，整个液压单元只使用了一个圆形线束插头，其中包括了液压气动隔膜泵排污泵和电磁阀等电气元件线路。拧开插头.可看到为12针形式。为了找到插头中高压电磁阀继电器供电所用的针脚，采用按住电磁阀继电器触点的方法，再利用试灯对插头各针脚进行测量和识别.结果测得第3号为高压电磁阀供电针脚。接着打开点火开关进行试验，可看到试灯亮O.5s后熄灭.说明继电器供电正确到达控制模块的线束插头。至此.已基本能够确定故障在控制模块内部。
Fault code of the solenoid valve involved is the ABS control module assembly of the wheel brake line into the exclusive oil solenoid valve,in accordance with the contents of the meaning of failure.It will be able to intuitively think of the possibility of the largest power problem.Open the left rear of the engine compartment lid fuse.On the ABS electronic control system to measure fuse No.10,22,34.Normal.In addition,in the fuse box.There are alarge number of relays.In which there are two marks marked with ABS,it is estimated that the ABS hydraulic pump and electric solenoid valve used.After apreliminary examination to know.Gray electric hydraulic pump for the ABS relay,the red relay for the ABS solenoid valve.Is one of the most common power supply ABS system.Open the red cover of the solenoid valve relay.See the contact switch inside the situation.No signs of ablation,measurement and control for coil resistance 90Ω,in the standard range.Relay solenoid valve will be inserted to open th eignition switch.At this time the relay contacts can be seen after the pull-off O5s This shows that ABS control module has control of the relay,as why did it after the pull-bounce,it should be is asystem to monitor the failure of the circuit failure protection.The next testing.Is playing on the relay the status of the power output measurement.ABS control module is located at the bottom of the vacuum booster,the entire hydraulic unit using only around plug wiring harness,including electric hydraulic pumps and electrical components such as solenoid valve circuit.Screw plug opening.Can see the form. of 12 pin.In order to find the plug in the solenoid valve used in the relay power supply pin,press and hold the solenoid valve using the method of relay contacts,re-use test lights on the plug for the measurement and recognition pins.Results for the No.3 solenoid valve power supply pin.Then open the ignition switch to test,test to see after the lights went out O.5s.That the right relays reach the power supply control module wiring harness plug.This point.Has been able to identify the internal fault in the control module.
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