C9故障码读取英文带图-高级班培训.ppt

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1、1DTC故障部件故障现象可能的原因维修方法备注112AcceleratorPedal1failure加速踏板1故障机动车加速缓慢,发动机怠速为500rpm线束短路或断开,油门踏板故障检查加速踏板信号或更换加速踏板113AcceleratorPedal/Brakeplausibility加速踏板与制动踏板干涉Acc.pedalpositionislimitedto0%.Transitionviaramp(Up:20,Down:50%/s)Lowidlesetpointspeedisincreasedto500rpm.加速踏板和制动踏板同时踩下的时间过长,加速踏板出现锁止

2、或故障,对机动车的操作存在错误检查加速踏板信号和踏板的机械运动情况116MainClutchSignalfailure离合信号故障Thedefaultvalue128isusedasoutputfortheclutchstatesignal.离合器开关故障,踏板线束短路或断路检查离合器开关或线束117BrakeSignalfailure制动踏板故障DuringdefectdetectionandforfinallydetecteddefectthebrakestatusBrkCD_stPressedissetto'brakepossiblyactuated'.Duri

3、nghealingthebrakestatusissetto'brakedefinitelyactuated'and'brakepossiblyactuated'.主级和副级制动开关未同步,其中的一个制动开关出现故障或未连接检查两个制动信号和线束2故障码:112AcceleratorPedal1failure加速踏板1故障故障描述:Apotentiometer/switchacceleratorpedalisinstalled.IncaseoftemporarydefectsthelastvalidvalueafAPP1isfrozen.ATTENTION:Witht

4、hecurrentmonitoringfunctionalityadisconnectionoftheacceleratorpedalcannotbedetected!!348加速踏板怠速开关负极77加速器电位计的供给电压78加速器电位计的接地电压79加速器电位计的信号B接口4标准值:1.拔下加速传感器接头2.将点火开关置于”点火”档(不起动发动机)3.测量加速传感器XX与XX之间的压降NOYES至第4步至第5步4.检查线束标准值:NOYESECU故障ECU端子故障线束故障55.连接加速传感器端子6.将点火开关置于”点火”档(不起动发动机)7.测量加速传感器的输出电压

5、:标准值:至第8步ECU故障ECU端子故障8.保持加速传感器端子连接9.将点火开关置于”点火”档(不起动发动机)10.测量加速传感器的输出电压:NOYES标准值加速传感器故障线束松脱或短路6AcceleratorPedal/Brakeplausibility加速踏板与制动踏板干涉故障码:113Implausibilityisdetectedifacceleratorpedalandbrakearepressedsimultaneously,whereastheacc.pedalwasactivatedfirst(Reactionofdrivertounwantedpr

6、opulsion).Plausibiltyischeckedevery20ms.Prerequisitsforplausiblitycheck:Nofailureofbrake,enginespeed>500rpm,vehiclespeed>0km/h原因:Acceleratorpedalandbrakepedalareactivatedtogether.Acceleratorpedallockedordefect检查:WronguseofvehicleChecksignalofacceleratorpedalandmechanicalmovementofaccele

7、ratorpedal7如果是出现误操作,该如何清除,恢复的条件是什么1.将点火开关置于”点火”档(不起动发动机)2.测量加速踏板的输出信号踩下加速踏板标准值:NOYES加速踏板故障8MainClutchSignalfailure离合信号故障故障码:116Monitoringoftheclutchstatesignal.TheSigfailureismonitoredcontinuously(ifthesignalisreceivedviaCAN).ThemonitoringoftheNplfailurestartswheneverthevehicle