潍柴国三闪码表
injection
important function
important function
important function
important function
important function
important function
Component/部件 1 缸喷油器错误
2 缸喷油器错误
Dfps/错误路径 Dfp_InjVlvCyl1A Dfp_InjVlvCyl1B Dfp_InjVlvCyl2A Dfp_InjVlvCyl2B Dfp_InjVlvCyl3A Dfp_InjVlvCyl3B Dfp_InjVlvCyl4A Dfp_InjVlvCyl4B Dfp_InjVlvCyl5A Dfp_InjVlvCyl5B Dfp_InjVlvCyl6A Dfp_InjVlvCyl6B Dfp_InjVlvBnk1A Dfp_InjVlvBnk1B Dfp_InjVlvBnk2A Dfp_InjVlvBnk2B Dfp_InjVlvChipA Dfp_InjVlvChipB
cooling & lubrication 冷却与润滑系统
rail pressure monitoring 轨压检测
ECU&overrun monitoring ECU 及超速检测
3
accessary functions 附件及功能 cooling component 冷却系统 air heater 进气加热 ErlpCD 故障灯
闪码按系统的基本分类
1
system running relative 系统运行相关
1 start relative, synconization 启动相关的同步
2 start relative, components 启动相关部件
3 power supply, main relay 电源供应，主继电器
闪码表
Blink code can be displayed in three levels of blinking. 闪码以三位的形式显示
1. First level of blinking will classify an error specific to part of an system, for e.g. if error is because of ECU, Hydraulics,Sensors, Actuatators
4 Bank & Chip 喷油器控制
5 injector system 喷射系统
6 CRS component 共轨系统部件
2
important Sensors 重要的传感器
fuel filter 柴油粗滤器
propulsion component 驱动部件
air system component 进气系统
Dfp_RailCD Dfp_RailCDOfsTst
133 133
共轨泄压阀问题
Dfp_PRVMon
134
Dfp_MeUnCD_ADC
135
流量计量单元错误
Dfp_MeUnCDNoLoad Dfp_MeUnCDSCBat
135 135
Dfp_MeUnCDSCGnd
135
System/系统 Cylinder1 Cylinder1 Cylinder2 Cylinder2 Cylinder3 Cylinder3 Cylinder4 Cylinder4 Cylinder5 Cylinder5 Cylinder6 Cylinder6 Bank Bank Bank Bank chip chip
important function
Air system 大气压力传感器
important function
Air system 进气温度传感器
important function
Cooling system 冷却水温度传感器
important function
Cooling system 水温过高报警
可能的闪码
4. 游车
故障原因
1. 喷油器工作不正常
141 146
2. 具有巡航功能的整车，停车时 324
有车速信号输入
可能的闪码
检修线路或更换计量单元 检查燃油管路密封性 检查水温、进气温度、轨压传感器
排除方法 重新接好松脱线，检查油门接线是否一一对应 用工具把接插件吹干再启动
排除方法 检查各缸喷油器线束 整车厂检查仪表及车速传感器
154
155
211
221
221
222
223
225
System/系统
Component/部件
important function
propulsion
important function
propulsion
important function
propulsion
important function
Air system 进气压力传感器
5
external tests 外部测试
misfire-dection 失火检测 engine test 发动机测试
System/系统
start relative start relative start relative start relative start relative start relative start relative start relative
important function important function
Cooling system 水温传感器测试
Rail Pressure Monitoring
Rail Pressure Monitoring
Rail Pressure Monitoring
Rail Rail Rail
Pressure Pressure Pressure
潍柴动力国 III 柴油机 故障诊断手册（草稿）
说明
1. 本手册仅针对国三柴油机电控方面的故障，机械方面的故障可以按照欧二方法解决。 2. 国三系列柴油机采用电控系统，与采用机械泵时有本质区别，需要采用专用的诊断工具。 3. 潍柴动力国三系列柴油机采用 bosch 公司的第二代共轨系统。共轨系统对油路（包括低压油路和高压油路）要
检查曲轴和凸轮轴传感器 充电或更换新的电瓶
排除方法 利用灭缸法或油管触感法判断 检查发动机冷却系统 检查曲轴和凸轮轴传感器 检修线路与元器件
5.流量计量单元故障
135
6.燃油管路泄漏引起轨压异常波动 251à257
7.传感器错误
133 231 241
3. 发动机始终运行在 1000 转
故障原因
1. 电子油门踏板线松脱或接错 221 2. 电子油门接插件体进水
start relative
start relative
start relative
start relative start relative start relative start relative start relative start relative start relative start relative CRS component CRS component
CRS component CRS component CRS component CRS component CRS component
Component/部件
Dfps/错误路径
Blink Code/闪码
ECU Supply AD 转换器出错
Dfp_ADCMon
111
Dfp_EngMCrS1
112
121 121
start system T15 开关错误
Dfp_T50CD
122
start system T50 开关错误
Dfp_T15CD
123
battery 电池
Dfp_BattCD
124
start system/标定错误非单调 map 图
Dfp_FMTC_NonMonotonMap 1 2 5
Synconisation 凸轮轴转速\曲轴转速传感器错误Dfp_EngMCaS1
113
Dfp_EngMBackUp
114
ECU Internal
Dfp_TPUMon
115
ECU Internal
Dfp_SOPTst
116
start system 启动继电器错误
Dfp_StrtCDHS Dfp_StrtCDLS
important function
mportant function
Cooling system 油压太低报警
important function
Cooling system 机油温度传感器
important function
Cooling system 机油温度过高报警
Dfp_InjVlvNumMinInj
Dfp_InjCrv_InjLim
Dfp_FlSys_WtDet
Dfp_APP1
Dfp_APP2
Dfp_ConvCD
Dfp_BrkCD
Dfp_AccPedPlausBrk
Blink Code/闪码 141 141 142 142 143 143 144 144 145 145 146 146 151 151 152 152 153 153
accessory button 按钮 EGR(not used in EIII) EGR(国三暂不用)
4
injector & CAN message 喷油器及 CAN 通讯
network manage 网络管理
潍柴动力专用故障码
0xa2,0x01,0x00,0x14,"0002","来自CAN的空调信号超时"0xa2,0x01,0x00,0x18,"0003","来自CAN的空调信号不可信"0xa2,0x01,0x00,0x21,"0010","模数转换器参考电压超出上限门槛值"0xa2,0x01,0x00,0x22,"0011","模数转换器参考电压低于下限门槛值"0xa2,0x01,0x00,0x24,"0012","模数转换器测试脉冲电压高出门槛值"0xa2,0x01,0x00,0x28,"0013","一定时间内只有部分数据流被转换"0xa2,0x01,0x00,0x31,"0020","HFM传感器进气温度电压值超出上限门槛值"0xa2,0x01,0x00,0x32,"0021","HFM传感器进气温度电压值低于下限门槛值"0xa2,0x01,0x00,0x41,"0030","HFM传感器平均电压值超出上限门槛值"0xa2,0x01,0x00,0x42,"0031","HFM传感器平均电压值低于下限门槛值"0xa2,0x01,0x00,0x51,"0040","空气流量比超出上限门槛值"0xa2,0x01,0x00,0x52,"0041","空气流量比低于下限门槛值"0xa2,0x01,0x00,0x61,"0050","单元时间内的空气流量超出上限门槛值"0xa2,0x01,0x00,0x62,"0051","单元时间内的空气流量低于下限门槛值"0xa2,0x01,0x00,0x71,"0060","油门踏板1电压值高出上限门槛值"0xa2,0x01,0x00,0x72,"0061","油门踏板1电压值低于下限门槛值"0xa2,0x01,0x00,0x74,"0062","油门踏板1与油门踏板2的两倍的信号关系不可信" 0xa2,0x01,0x00,0x81,"0070","油门踏板2电压值高出上限门槛值"0xa2,0x01,0x00,0x82,"0071","油门踏板2电压值低于下限门槛值"0xa2,0x01,0x00,0x84,"0072","油门踏板2与油门踏板1的1/2的信号关系不可信" 0xa2,0x01,0x00,0x91,"0080","大气压力传感器电压高出上限门槛值"0xa2,0x01,0x00,0x92,"0081","大气压力传感器电压低于下限门槛值"0xa2,0x01,0x00,0x94,"0082","来自CAN的大气压力传感器信号不可信"0xa2,0x01,0x00,0x98,"0083","大气压力传感器与进气压力传感器信号不可信"0xa2,0x01,0x00,0xa1,"0090","车速限制指示灯电源短路"0xa2,0x01,0x00,0xa2,"0091","车速限制指示灯电源短路"0xa2,0x01,0x00,0xa4,"0092","车速限制指示灯没有信号"0xa2,0x01,0x00,0xa8,"0093","车速限制指示灯超外温"0xa2,0x01,0x00,0xb8,"00a3","油门与刹车信号不可信"0xa2,0x01,0x00,0xc1,"00b0","进气量调节器正偏差超过上限门槛值"0xa2,0x01,0x00,0xd2,"00c1","进气量调节器负偏差低于下限门槛值"0xa2,0x01,0x00,0xe1,"00d0","进气加热常开故障"0xa2,0x01,0x00,0xf1,"00e0","进气加热器开时电压高于上限门槛值"0xa2,0x01,0x00,0xf2,"00e1","进气加热器开时电压低于下限门槛值"0xa2,0x01,0x01,0x01,"00f0","进气加热器闭时电压高于上限门槛值"0xa2,0x01,0x01,0x02,"00f1","进气加热器闭时电压低于下限门槛值"0xa2,0x01,0x01,0x11,"0100","进气加热器对电源短路"0xa2,0x01,0x01,0x12,"0101","进气加热器对地短路"0xa2,0x01,0x01,0x21,"0110","增压执行器电源短路故障"0xa2,0x01,0x01,0x32,"0121","增压执行器对地短路故障"0xa2,0x01,0x01,0x44,"0132","增压器没有信号"0xa2,0x01,0x01,0x48,"0133","增压器超温"0xa2,0x01,0x01,0x51,"0140","进气压力传感器电压超出上限门槛值"0xa2,0x01,0x01,0x52,"0141","进气压力传感器电压低于下限门槛值"0xa2,0x01,0x01,0x54,"0142","来自CAN的进气压力传感器信号不可信"0xa2,0x01,0x01,0x58,"0143","进气压力传感器与大气压力传感器信号不可信" 0xa2,0x01,0x01,0x61,"0150","电池电压原始值超出上限门槛"0xa2,0x01,0x01,0x62,"0151","电池电压原始值低于下限门槛"0xa2,0x01,0x01,0x74,"0162","来自CAN的刹车信号不可信"0xa2,0x01,0x01,0x78,"0163","刹车主、辅开关信号不可信"0xa2,0x01,0x01,0x81,"0170","中冷器旁通阀对电源短路"0xa2,0x01,0x01,0x82,"0171","中冷器旁通阀对地短路"0xa2,0x01,0x01,0x84,"0172","中冷器旁通阀没有信号"0xa2,0x01,0x01,0x91,"0180","冷却水水位传感器电压超出上限门槛值"0xa2,0x01,0x01,0x92,"0181","冷却水水位传感器电压低于下限门槛值"0xa2,0x01,0x01,0x94,"0182","冷却水位传感器开路"0xa2,0x01,0x01,0x98,"0183","冷却水水位传感器信号不可信"0xa2,0x01,0x01,0xa1,"0190","CRERCD电源短路"0xa2,0x01,0x01,0xa2,"0191","CRERCD地短路"0xa2,0x01,0x01,0xa4,"0192","CRERCD没有信号"0xa2,0x01,0x01,0xa8,"0193","CRERCD超温"0xa2,0x01,0x01,0xb1,"01a0","冷启动指示灯对电源短路"0xa2,0x01,0x01,0xb2,"01a1","冷启动指示灯对地短路"0xa2,0x01,0x01,0xb4,"01a2","没有冷启动指示灯信号"0xa2,0x01,0x01,0xb8,"01a3","冷启动指示灯超温"0xa2,0x01,0x01,0xc1,"01b0","冷却水温度传感器电压超出上限门槛"0xa2,0x01,0x01,0xc2,"01b1","冷却水温度传感器电压低于下限门槛"0xa2,0x01,0x01,0xc4,"01b2","来自CAN的冷却水温度传感器信号不可信"0xa2,0x01,0x01,0xc8,"01b3","冷却水温与油温信号不可信"0xa2,0x01,0x01,0xd8,"01c3","冷却水温在一定时间内没有达到最小值"0xa2,0x01,0x01,0xe8,"01d3","冷却水温在一定时间内上升幅度没有达到最小值" 0xa2,0x01,0x01,0xf1,"01e0","气缸1失火次数超过门槛值"0xa2,0x01,0x02,0x01,"01f0","气缸2失火次数超过门槛值"0xa2,0x01,0x02,0x11,"0200","气缸3失火次数超过门槛值"0xa2,0x01,0x02,0x21,"0210","气缸4失火次数超过门槛值"0xa2,0x01,0x02,0x31,"0220","气缸5失火次数超过门槛值"0xa2,0x01,0x02,0x41,"0230","气缸6失火次数超过门槛值"0xa2,0x01,0x02,0x51,"0240","多缸失火次数超过门槛值"0xa2,0x01,0x02,0x61,"0250","发动机控制单元内部错误"0xa2,0x01,0x02,0x71,"0260","压缩测试故障"0xa2,0x01,0x02,0x84,"0272","来自CAN的离合器信号不可信"0xa2,0x01,0x02,0x88,"0273","离合器状态信号不可信"0xa2,0x01,0x02,0x91,"0280","环境温度传感器电压超出上限门槛值"0xa2,0x01,0x02,0x92,"0281","环境温度传感器电压低于下限门槛值"0xa2,0x01,0x02,0x94,"0282","来自CAN的环境温度传感器信号不可信"0xa2,0x01,0x02,0xa1,"0290","环境温度传感器BET电压超出上限门槛值"0xa2,0x01,0x02,0xa2,"0291","环境温度传感器BET电压低于下限门槛值"0xa2,0x01,0x02,0xb1,"02a0","环境温度传感器CLgZn电压超出上限门槛值" 0xa2,0x01,0x02,0xb2,"02a1","环境温度传感器CLgZn电压低于下限门槛值" 0xa2,0x01,0x02,0xc1,"02b0","环境温度传感器InAir电压超出上限门槛值"0xa2,0x01,0x02,0xc2,"02b1","环境温度传感器InAir电压低于下限门槛值"0xa2,0x01,0x02,0xd8,"02c3","低怠速开关和刹车开关均激活并超过一段时间" 0xa2,0x01,0x02,0xe1,"02d0","EGR旁通阀对电源短路或超温"0xa2,0x01,0x02,0xe2,"02d1","EGR旁通阀对地短路"0xa2,0x01,0x02,0xe4,"02d2","没有EGR旁通阀信号"0xa2,0x01,0x02,0xf4,"02e2","车下启动/停止按钮卡住"0xa2,0x01,0x03,0x01,"02f0","排气管压力传感器电压超出上限门槛值"0xa2,0x01,0x03,0x02,"02f1","排气管压力传感器电压低于下限门槛值"0xa2,0x01,0x03,0x08,"02f3","排气管压力传感器信号不可信"0xa2,0x01,0x03,0x11,"0300","EGR对电源短路故障"0xa2,0x01,0x03,0x22,"0311","EGR对地短路故障"0xa2,0x01,0x03,0x34,"0322","没有EGR信号"0xa2,0x01,0x03,0x38,"0323","EGR超温"0xa2,0x01,0x03,0x41,"0330","只有凸轮轴信号,进入跛形回家状态"0xa2,0x01,0x03,0x51,"0340","没有凸轮轴信号"0xa2,0x01,0x03,0x52,"0341","凸轮轴信号不可靠"0xa2,0x01,0x03,0x61,"0350","没有曲轴信号"0xa2,0x01,0x03,0x62,"0351","曲轴信号不可信"0xa2,0x01,0x03,0x71,"0360","曲轴与凸轮轴信号偏差超出门槛值"0xa2,0x01,0x03,0x81,"0370","发动机转速超限"0xa2,0x01,0x03,0x91,"0380","排气制动蝶阀对电源短路或者超温"0xa2,0x01,0x03,0xa2,"0391","排气制动蝶阀地短路"0xa2,0x01,0x03,0xb4,"03a2","排气制动蝶阀没有信号"0xa2,0x01,0x03,0xb8,"03a3","排气制动蝶阀超温"0xa2,0x01,0x03,0xc8,"03b3","油量扭矩转化不可信"0xa2,0x01,0x03,0xd1,"03c0","燃油温度传感器电压超出上限门槛值"0xa2,0x01,0x03,0xd2,"03c1","燃油温度传感器电压超出下限门槛值"0xa2,0x01,0x03,0xe1,"03d0","风扇执行器(PWM波)对电源短路"0xa2,0x01,0x03,0xe2,"03d1","风扇执行器(PWM波)对地短路"0xa2,0x01,0x03,0xe4,"03d2","风扇执行器(PWM波)没有信号"0xa2,0x01,0x03,0xe8,"03d3","风扇执行器(PWM波)超温"0xa2,0x01,0x03,0xf1,"03e0","风扇执行器(数字信号)对电源短路"0xa2,0x01,0x03,0xf2,"03e1","风扇执行器(数字信号)对地短路"0xa2,0x01,0x04,0x01,"03f0","冷却风扇速度高出上限门槛值"0xa2,0x01,0x04,0x02,"03f1","冷却风扇速度低于下限门槛值"0xa2,0x01,0x04,0x11,"0400","燃油滤清器压差传感器电压高出上限门槛值" 0xa2,0x01,0x04,0x22,"0411","燃油滤清器压差传感器电压低于下限门槛值" 0xa2,0x01,0x04,0x38,"0423","燃油滤清器压差传感器信号不可信"0xa2,0x01,0x04,0x41,"0430","燃油滤清器加热器对电源短路"0xa2,0x01,0x04,0x42,"0431","燃油滤清器加热器对地短路"0xa2,0x01,0x04,0x51,"0440","油中有水传感器电压超出上限门槛值" 0xa2,0x01,0x04,0x62,"0451","油中有水传感器电压低于下限门槛值" 0xa2,0x01,0x04,0x74,"0462","燃油滤清器堵塞"0xa2,0x01,0x04,0x81,"0470","油中有水传感器检测到油中有水"0xa2,0x01,0x04,0x91,"0480","CAN-EngGsFlRtHtr 通讯错误"0xa2,0x01,0x04,0x92,"0481","CAN-EngGsFlRtHtr 通讯错误"0xa2,0x01,0x04,0x94,"0482","CAN-EngGsFlRtHtr 通讯错误"0xa2,0x01,0x04,0x98,"0483","CAN-EngGsFlRtHtr 通讯错误"0xa2,0x01,0x04,0xa1,"0490","CAN -RxEngTmp2Sens 通讯错误"0xa2,0x01,0x04,0xa2,"0491","CAN -RxEngTmp2Sens 通讯错误"0xa2,0x01,0x04,0xa4,"0492","CAN -RxEngTmp2Sens 通讯错误"0xa2,0x01,0x04,0xa8,"0493","CAN -RxEngTmp2Sens 通讯错误"0xa2,0x01,0x04,0xb1,"04a0","CAN -TODashDspl 通讯错误"0xa2,0x01,0x04,0xc4,"04b2","CAN-TOEBC1 通讯错误" 0xa2,0x01,0x04,0xd1,"04c0","CAN-TOERC1DR 通讯错误" 0xa2,0x01,0x04,0xe4,"04d2","CAN -TOETC1 通讯错误"0xa2,0x01,0x04,0xf4,"04e2","CAN -TOEngGsFlowR 通讯错误"0xa2,0x01,0x05,0x01,"04f0","CAN -TOHRVD 通讯错误" 0xa2,0x01,0x05,0x11,"0500","CAN -TORxAMCON 通讯错误" 0xa2,0x01,0x05,0x24,"0512","CAN-TORxCCVS 通讯错误" 0xa2,0x01,0x05,0x34,"0522","CAN-TORxEngTemp2 通讯错误" 0xa2,0x01,0x05,0x44,"0532","CAN-TOTCO1 通讯错误" 0xa2,0x01,0x05,0x51,"0540","CAN-TOTF 通讯错误" 0xa2,0x01,0x05,0x61,"0550","CAN -OTSC1AE 通讯错误" 0xa2,0x01,0x05,0x64,"0552","CAN -OTSC1AE 通讯错误" 0xa2,0x01,0x05,0x71,"0560","CAN -TOTSC1AR 通讯错误"0xa2,0x01,0x05,0x74,"0562","CAN -TOTSC1AR 通讯错误" 0xa2,0x01,0x05,0x81,"0570","CAN-TOTSC1DE 通讯错误" 0xa2,0x01,0x05,0x84,"0572","CAN-TOTSC1DE 通讯错误" 0xa2,0x01,0x05,0x91,"0580","CAN -TOTSC1DR 通讯错误" 0xa2,0x01,0x05,0x94,"0582","CAN -TOTSC1DR 通讯错误" 0xa2,0x01,0x05,0xa1,"0590","CAN-TOTSC1PE 通讯错误" 0xa2,0x01,0x05,0xa2,"0591","CAN-TOTSC1PE 通讯错误" 0xa2,0x01,0x05,0xb1,"05a0","CAN-TOTSC1TE 通讯错误" 0xa2,0x01,0x05,0xb4,"05a2","CAN-TOTSC1TE 通讯错误" 0xa2,0x01,0x05,0xc1,"05b0","CAN -TOTSC1TR 通讯错误" 0xa2,0x01,0x05,0xc4,"05b2","CAN -TOTSC1TR 通讯错误" 0xa2,0x01,0x05,0xd1,"05c0","CAN-TOTSC1VE 通讯错误" 0xa2,0x01,0x05,0xd4,"05c2","CAN-TOTSC1VE 通讯错误" 0xa2,0x01,0x05,0xe1,"05d0","CAN-TOTSC1VR 通讯错误" 0xa2,0x01,0x05,0xe4,"05d2","CAN-TOTSC1VR 通讯错误" 0xa2,0x01,0x05,0xf1,"05e0","CAN -TOTimeDate 通讯错误"0xa2,0x01,0x06,0x04,"05f2","CAN -TOWSI 通讯错误" 0xa2,0x01,0x06,0x14,"0602","CAN -TxTO通讯错误" 0xa2,0x01,0x06,0x21,"0610","档位提升间隙时间过长"0xa2,0x01,0x06,0x31,"0620","指示灯1电源短路"0xa2,0x01,0x06,0x32,"0621","指示灯1地短路"0xa2,0x01,0x06,0x34,"0622","指示灯1没有信号"0xa2,0x01,0x06,0x38,"0623","指示灯1超温"0xa2,0x01,0x06,0x41,"0630","指示灯2电源短路"0xa2,0x01,0x06,0x42,"0631","指示灯2地短路"0xa2,0x01,0x06,0x44,"0632","指示灯2没有信号"0xa2,0x01,0x06,0x48,"0633","指示灯2超温"0xa2,0x01,0x06,0x51,"0640","指示灯3电源短路"0xa2,0x01,0x06,0x52,"0641","指示灯3地短路"0xa2,0x01,0x06,0x54,"0642","指示灯3没有信号"0xa2,0x01,0x06,0x58,"0643","指示灯3超温"0xa2,0x01,0x06,0x61,"0650","CJ940通讯受干扰"0xa2,0x01,0x06,0x71,"0660","EEPROM报警"0xa2,0x01,0x06,0x72,"0661","EEPROM读错误"0xa2,0x01,0x06,0x74,"0662","EEPROM写错误"0xa2,0x01,0x06,0x78,"0663","EEPROM使用替代值"0xa2,0x01,0x06,0x88,"0673","系统修复故障"0xa2,0x01,0x06,0x98,"0683","系统修复故障"0xa2,0x01,0x06,0xa8,"0693","系统修复故障"0xa2,0x01,0x06,0xb1,"06a0","CJ940电压过高"0xa2,0x01,0x06,0xc2,"06b1","CJ940电压过低"0xa2,0x01,0x06,0xd1,"06c0","空气湿度传感器电压超出上限门槛值"0xa2,0x01,0x06,0xd2,"06c1","空气湿度传感器电压低于下限门槛值"0xa2,0x01,0x06,0xe1,"06d0","进气温度传感器电压超出上限门槛值"0xa2,0x01,0x06,0xe2,"06d1","进气温度传感器电压低于下限门槛值"0xa2,0x01,0x06,0xe4,"06d2","来自CAN进气温度传感器电压信号不可信" 0xa2,0x01,0x06,0xf1,"06e0","理想喷油次数受电流限制"0xa2,0x01,0x06,0xf2,"06e1","理想喷油次数受油量限制"0xa2,0x01,0x06,0xf4,"06e2","理想喷油次数受软件限制"0xa2,0x01,0x07,0x01,"06f0","1、2、3缸中某喷油器高端与电源或地短路" 0xa2,0x01,0x07,0x02,"06f1","1、2、3缸中某喷油器低端与地短路"0xa2,0x01,0x07,0x04,"06f2","看实际应用情况"0xa2,0x01,0x07,0x08,"06f3","没有标定的错误"0xa2,0x01,0x07,0x11,"0700","看实际应用情况"0xa2,0x01,0x07,0x12,"0701","看实际应用情况"0xa2,0x01,0x07,0x14,"0702","1、2、3缸中某喷油器断路"0xa2,0x01,0x07,0x18,"0703","看实际应用情况"0xa2,0x01,0x07,0x21,"0710","4、5、6缸中某喷油器高端与电源或地短路" 0xa2,0x01,0x07,0x22,"0711","4、5、6缸中某喷油器低端与地短路"0xa2,0x01,0x07,0x24,"0712","看实际应用情况"0xa2,0x01,0x07,0x28,"0713","没有标定的错误"0xa2,0x01,0x07,0x31,"0720","看实际应用情况"0xa2,0x01,0x07,0x32,"0721","看实际应用情况"0xa2,0x01,0x07,0x34,"0722","4、5、6缸中某喷油器断路"0xa2,0x01,0x07,0x38,"0723","看实际应用情况"0xa2,0x01,0x07,0x41,"0730","CY33X内部重新起动/时钟丢失/电压太高" 0xa2,0x01,0x07,0x42,"0731","CY33X没有被锁定/初始化错误"0xa2,0x01,0x07,0x44,"0732","CY33X工作在测试模式下"0xa2,0x01,0x07,0x48,"0733","CY33X SPI通讯错误"0xa2,0x01,0x07,0x51,"0740","CY33X内部奇偶错误"0xa2,0x01,0x07,0x52,"0741","CY33X程序错误"0xa2,0x01,0x07,0x54,"0742","CY33X check of inv. YSEL"0xa2,0x01,0x07,0x58,"0743","某缸的CY33X不工作"0xa2,0x01,0x07,0x61,"0750","喷油器1低端与电源短路"0xa2,0x01,0x07,0x62,"0751","看实际应用情况"0xa2,0x01,0x07,0x64,"0752","喷油器1高端与低端短路"0xa2,0x01,0x07,0x68,"0753","没有标定的错误"0xa2,0x01,0x07,0x71,"0760","看实际应用情况"0xa2,0x01,0x07,0x72,"0761","看实际应用情况"0xa2,0x01,0x07,0x74,"0762","喷油器1开路"0xa2,0x01,0x07,0x78,"0763","看实际应用情况"0xa2,0x01,0x07,0x81,"0770","喷油器2低端与电源短路" 0xa2,0x01,0x07,0x82,"0771","看实际应用情况"0xa2,0x01,0x07,0x84,"0772","喷油器2高端与低端短路" 0xa2,0x01,0x07,0x88,"0773","没有标定的错误"0xa2,0x01,0x07,0x91,"0780","看实际应用情况"0xa2,0x01,0x07,0x92,"0781","看实际应用情况"0xa2,0x01,0x07,0x94,"0782","喷油器2开路"0xa2,0x01,0x07,0x98,"0783","看实际应用情况"0xa2,0x01,0x07,0xa1,"0790","喷油器3低端与电源短路" 0xa2,0x01,0x07,0xa2,"0791","看实际应用情况"0xa2,0x01,0x07,0xa4,"0792","喷油器3高端与低端短路" 0xa2,0x01,0x07,0xa8,"0793","没有标定的错误"0xa2,0x01,0x07,0xb1,"07a0","看实际应用情况"0xa2,0x01,0x07,0xb2,"07a1","看实际应用情况"0xa2,0x01,0x07,0xb4,"07a2","喷油器3开路"0xa2,0x01,0x07,0xb8,"07a3","看实际应用情况"0xa2,0x01,0x07,0xc1,"07b0","喷油器4低端与电源短路" 0xa2,0x01,0x07,0xc2,"07b1","看实际应用情况"0xa2,0x01,0x07,0xc4,"07b2","喷油器4高端与低端短路" 0xa2,0x01,0x07,0xc8,"07b3","没有标定的错误"0xa2,0x01,0x07,0xd1,"07c0","看实际应用情况"0xa2,0x01,0x07,0xd2,"07c1","看实际应用情况"0xa2,0x01,0x07,0xd4,"07c2","喷油器4开路"0xa2,0x01,0x07,0xd8,"07c3","看实际应用情况"0xa2,0x01,0x07,0xe1,"07d0","喷油器5低端与电源短路"0xa2,0x01,0x07,0xe2,"07d1","看实际应用情况"0xa2,0x01,0x07,0xe4,"07d2","喷油器5高端与低端短路"0xa2,0x01,0x07,0xe8,"07d3","没有标定的错误"0xa2,0x01,0x07,0xf1,"07e0","看实际应用情况"0xa2,0x01,0x07,0xf2,"07e1","看实际应用情况"0xa2,0x01,0x07,0xf4,"07e2","喷油器5开路"0xa2,0x01,0x07,0xf8,"07e3","看实际应用情况"0xa2,0x01,0x08,0x01,"07f0","喷油器6低端与电源短路"0xa2,0x01,0x08,0x02,"07f1","看实际应用情况"0xa2,0x01,0x08,0x04,"07f2","喷油器6高端与低端短路"0xa2,0x01,0x08,0x08,"07f3","没有标定的错误"0xa2,0x01,0x08,0x11,"0800","看实际应用情况"0xa2,0x01,0x08,0x12,"0801","看实际应用情况"0xa2,0x01,0x08,0x14,"0802","喷油器6开路"0xa2,0x01,0x08,0x18,"0803","看实际应用情况"0xa2,0x01,0x08,0x21,"0810","正常工作的气缸数小于系统运转所需的最小缸数" 0xa2,0x01,0x08,0x22,"0811","未用"0xa2,0x01,0x08,0x24,"0812","未用"0xa2,0x01,0x08,0x28,"0813","未用"0xa2,0x01,0x08,0x38,"0823","巡航信号不可靠"0xa2,0x01,0x08,0x41,"0830","故障灯与电源短路"0xa2,0x01,0x08,0x42,"0831","故障灯与地短路"0xa2,0x01,0x08,0x44,"0832","故障灯没有信号"0xa2,0x01,0x08,0x48,"0833","故障灯超温"0xa2,0x01,0x08,0x51,"0840","主继电器2对电源短路"0xa2,0x01,0x08,0x52,"0841","主继电器2对地短路"0xa2,0x01,0x08,0x61,"0850","巡航开关对电源短路"0xa2,0x01,0x08,0x62,"0851","巡航开关对地短路"0xa2,0x01,0x08,0x68,"0853","巡航开关信号不可信"0xa2,0x01,0x08,0x71,"0860","主继电器1电源短路"0xa2,0x01,0x08,0x82,"0871","主继电器1地短路"0xa2,0x01,0x08,0x98,"0883","系统通讯故障"0xa2,0x01,0x08,0xa1,"0890","CAN通讯错误"0xa2,0x01,0x08,0xb1,"08a0","CAN通讯错误"0xa2,0x01,0x08,0xc1,"08b0","CAN通讯错误"0xa2,0x01,0x08,0xd1,"08c0","机油液位传感器电压电压超出上限"0xa2,0x01,0x08,0xd2,"08c1","机油液位传感器电压电压低于下限"0xa2,0x01,0x08,0xd4,"08c2","来自CAN的机油液位传感器信号不可靠" 0xa2,0x01,0x08,0xd8,"08c3","机油液位传感器信号不可靠"0xa2,0x01,0x08,0xe1,"08d0","机油压力传感器电压电压超出上限"0xa2,0x01,0x08,0xe2,"08d1","机油压力传感器电压电压低于下限"0xa2,0x01,0x08,0xe4,"08d2","机油压力传感器信号不可靠"0xa2,0x01,0x08,0xe8,"08d3","机油压力过高或机油温度信号不可靠"0xa2,0x01,0x08,0xf8,"08e3","机油压力过低"0xa2,0x01,0x09,0x01,"08f0","机油温度传感器电压超出上限门槛值"0xa2,0x01,0x09,0x02,"08f1","机油温度传感器电压低于下限门槛值"0xa2,0x01,0x09,0x04,"08f2","来自CAN的机油温度传感器信号不可信" 0xa2,0x01,0x09,0x08,"08f3","机油温度与冷却水温度信号"0xa2,0x01,0x09,0x18,"0903","机油温度与冷却水温度信号"0xa2,0x01,0x09,0x21,"0910","喷油器加电时间超出超速监视器设定值"0xa2,0x01,0x09,0x31,"0920","发动机转速不可信"0xa2,0x01,0x09,0x41,"0930","压力调节正偏差超出上限"0xa2,0x01,0x09,0x52,"0941","压力调节负偏差低于下限"0xa2,0x01,0x09,0x61,"0950","电动燃油泵对电源短路"0xa2,0x01,0x09,0x62,"0951","电动燃油泵对地短路"0xa2,0x01,0x09,0x64,"0952","电动燃油泵断路"0xa2,0x01,0x09,0x68,"0953","电动燃油泵超温"0xa2,0x01,0x09,0x78,"0963","加速测试错误"0xa2,0x01,0x09,0x82,"0971","看门狗开关错误"0xa2,0x01,0x09,0x84,"0972","冗余断缸测试电压超出上限"0xa2,0x01,0x09,0x88,"0973","冗余断缸测试电压低于下限"0xa2,0x01,0x09,0x91,"0980","传感器电源1电压超出上限门槛值"0xa2,0x01,0x09,0x92,"0981","传感器电源1电压低于下限门槛值"0xa2,0x01,0x09,0xa1,"0990","传感器电源2电压超出上限门槛值"0xa2,0x01,0x09,0xa2,"0991","传感器电源2电压低于下限门槛值"0xa2,0x01,0x09,0xb1,"09a0","传感器电源3电压超出上限门槛值"0xa2,0x01,0x09,0xb2,"09a1","传感器电源3电压低于下限门槛值"0xa2,0x01,0x09,0xc1,"09b0","断缸测试故障"0xa2,0x01,0x09,0xd1,"09c0","系统灯电源短路"0xa2,0x01,0x09,0xd2,"09c1","系统灯地短路"0xa2,0x01,0x09,0xd4,"09c2","没有系统灯信号"0xa2,0x01,0x09,0xd8,"09c3","系统灯超温"0xa2,0x01,0x09,0xe4,"09d2","T15信号错误"0xa2,0x01,0x09,0xf1,"09e0","T50接通时间超限"0xa2,0x01,0x0a,0x08,"09f3","时间处理器与系统计时器间的时间偏差超出门槛值" 0xa2,0x01,0x0a,0x11,"0a00","空气节流阀对电源短路"0xa2,0x01,0x0a,0x22,"0a11","空气节流阀对地短路"0xa2,0x01,0x0a,0x34,"0a22","空气节流阀没有信号"0xa2,0x01,0x0a,0x38,"0a23","空气节流阀超温"0xa2,0x01,0x0a,0x41,"0a30","车速1高于最大门槛值"0xa2,0x01,0x0a,0x42,"0a31","VSS或SPS传感器信号失效"0xa2,0x01,0x0a,0x44,"0a32","车速1的HW信号不可信"0xa2,0x01,0x0a,0x48,"0a33","车速1与喷油量及发动机转速不可信" 0xa2,0x01,0x0a,0x51,"0a40","车速2传感器电压高出上限门槛值" 0xa2,0x01,0x0a,0x52,"0a41","车速2传感器电压低于下限门槛值" 0xa2,0x01,0x0a,0x54,"0a42","来自CAN的车速信号无效"0xa2,0x01,0x0a,0x58,"0a43","车速2传感器电压信号不可信"0xa2,0x01,0x0a,0x61,"0a50","车速3信号脉宽超过上限门槛值"0xa2,0x01,0x0a,0x62,"0a51","车速3信号脉宽低于下限门槛值"0xa2,0x01,0x0a,0x64,"0a52","车速信号平均周期小于门槛值"0xa2,0x01,0x0a,0x74,"0a62","CAN通讯错误"0xa2,0x01,0x0a,0x78,"0a63","CAN通讯错误"0xa2,0x01,0x0a,0x88,"0a73","SPI通讯错误"0xa2,0x01,0x0a,0x91,"0a80","故障指示灯电源短路"0xa2,0x01,0x0a,0x92,"0a81","故障指示灯对地短路"0xa2,0x01,0x0a,0x94,"0a82","没有故障指示灯信号"0xa2,0x01,0x0a,0x98,"0a83","故障指示灯超温"0xa2,0x01,0x0a,0xa1,"0a90","空调压缩机对电源短路"0xa2,0x01,0x0a,0xa2,"0a91","空调压缩机对地短路"0xa2,0x01,0x0a,0xa4,"0a92","空调压缩机没有信号"0xa2,0x01,0x0a,0xa8,"0a93","空调压缩机超温"0xa2,0x01,0x0a,0xb1,"0aa0","BPA的AD转换信号超出上限"0xa2,0x01,0x0a,0xb2,"0aa1","BPA的AD转换信号低于下限"0xa2,0x01,0x0a,0xb4,"0aa2","BPA信号错误"0xa2,0x01,0x0a,0xc1,"0ab0","高压测试错误"0xa2,0x01,0x0a,0xd4,"0ac2","燃油计量器开路"0xa2,0x01,0x0a,0xd8,"0ac3","燃油计量器超温"0xa2,0x01,0x0a,0xe1,"0ad0","燃油计量器电源短路"0xa2,0x01,0x0a,0xf2,"0ae1","燃油计量器对地短路"0xa2,0x01,0x0b,0x01,"0af0","燃油计量器电压超过上限"0xa2,0x01,0x0b,0x02,"0af1","燃油计量器电压低于下限"0xa2,0x01,0x0b,0x11,"0b00","共轨泻压阀打开"0xa2,0x01,0x0b,0x12,"0b01","轨压要求时间超限"0xa2,0x01,0x0b,0x14,"0b02","压力波动时共轨泻压阀没有打开"0xa2,0x01,0x0b,0x21,"0b10","共轨泻压阀打开次数超出技术要求的最大次数"0xa2,0x01,0x0b,0x31,"0b20","轨压传感器电压超出上限门槛值"0xa2,0x01,0x0b,0x32,"0b21","轨压传感器电压低于下限门槛值"0xa2,0x01,0x0b,0x41,"0b30","轨压传感器电压超出最大偏差"0xa2,0x01,0x0b,0x42,"0b31","轨压传感器电压低于最小偏差"0xa2,0x01,0x0b,0x51,"0b40","轨压偏差超出上限门槛值"0xa2,0x01,0x0b,0x61,"0b50","轨压偏差超出上限门槛值并且喷油量超限"0xa2,0x01,0x0b,0x71,"0b60","轨压偏差低于下限门槛值并且喷油量低于门槛值"0xa2,0x01,0x0b,0x81,"0b70","轨压峰值低于下限门槛值"0xa2,0x01,0x0b,0x91,"0b80","轨压峰值超出上限门槛值"0xa2,0x01,0x0b,0xa1,"0b90","轨压下降过快"0xa2,0x01,0x0b,0xb1,"0ba0","超速模式下的油量剂量单元设定不可信"0xa2,0x01,0x0b,0xc1,"0bb0","燃油计量器中的油量超过门槛值"0xa2,0x01,0x0b,0xd1,"0bc0","轨压偏差超出门槛值并且燃油计量器中的油量超过门槛值"0xa2,0x01,0x0b,0xe1,"0bd0","12V传感器电源电压超过上限门槛值"0xa2,0x01,0x0b,0xe2,"0bd1","12V传感器电源低于下限门槛值"0xa2,0x01,0x0b,0xf1,"0be0","起动电机高端电源短路"0xa2,0x01,0x0b,0xf2,"0be1","起动电机高端对地短路"0xa2,0x01,0x0c,0x01,"0bf0","起动电机低端电源短路"0xa2,0x01,0x0c,0x02,"0bf1","起动电机低端对地短路"0xa2,0x01,0x0c,0x04,"0bf2","起动电机开路"0xa2,0x01,0x0c,0x11,"0c00","水温传感器工作正常但水温超出门槛值"0xa2,0x01,0x0c,0x21,"0c10","空转时，识别油量计量单元的变量修正错误"0xa2,0x01,0x0c,0x31,"0c20","制动开关错误的识别错误"0xa2,0x01,0x0c,0x41,"0c30","制动踏板踩下前，巡航控制抑制错误"0xa2,0x01,0x0c,0x51,"0c40","巡航控制要求的识别错误，使得故障灯常亮"0xa2,0x01,0x0c,0x61,"0c50","远程油门踏板1输出电压值超出上限" 0xa2,0x01,0x0c,0x62,"0c51","远程油门踏板1输出电压值低于下限" 0xa2,0x01,0x0c,0x64,"0c52","远程油门踏板1与远程油门踏板2的2倍的信号关系不可信" 0xa2,0x01,0x0c,0x71,"0c60","远程油门踏板2输出电压值超出上限" 0xa2,0x01,0x0c,0x72,"0c61","远程油门踏板2输出电压值低于下限" 0xa2,0x01,0x0c,0x74,"0c62","远程油门踏板2与远程油门踏板1的1/2的信号关系不可信"。
国三常见故障诊断表
接线端子：1- +5V、2 -信号+、3 -信号-
故障码：P0340没有相位传感器信号
P0341错误的相位传感器信号
故障说明：凸轮轴位置传感器配合1X变磁阻转子，向发动机控制单元提供信号电压。发动
机控制单元利用该信号电压确定凸轮轴的位置。当发动机控制单元检测到最少数量的凸轮轴
温度传感器信号电路的电压也降低。如果ECU检测到进气压力信号和进气温度信号不在正
常范围内，则设置故障码 功能及原理:
根据轨道内的燃油压力转换成电信号传递给ECU，ECU根据轨压控制进油油量阀的动作。
压力传感器由一个密封的弹性硅芯片和相应的桥式电路组成， 桥的一端；当压力的变化致使硅芯片变形，阻值随之变化,
增加至踏板完全踩下时的4伏以上。 在踩下踏板后，加速踏板位置传感器2的信号电压
增加，即从自由位置时的约0.3伏增加至踏板完全踩下时的2伏以上。2个数据通过控制
系统相互监测，如果系统监测2个数据异常，则设置故障码。
如果测试时需要探测发动机控制单元线束连接器或部件线束连接器，应使用诊断连接器测试
适配器组件。
轴带动；
加速踏板位置不同时，该传感器所反应给ECU的电阻信号也不同，系统根据它输出的信号 值及其变化速率判定发动机的实时负载和动态变化状况；
接线端子：1- +5V、2-+5V、3 -信号1地、4-信号1+、5 -信号2地、6-信号2+
故障码：P0122加速踏板电位器1输出电压低于下限
P0123――加速踏板电位器1输出电压高于上限
桥的一端；当压力的变化致使硅芯片变形，阻值随之变化，电桥的另一端与输入压力成正比
的0~5 V输出信号
潍柴国Ⅳ发动机故障闪码表
110
17
110
18
110
19
110
3
110
4
110
2
598
2
598
19
520269
14
520270
14
520271
14
520197
11
520272
14
520273
14
520274
14
520275
14
522004
19
522005
19
522006
14
522006
19
522007
19
522008
19
522009
潍柴国Ⅳ发动机故障闪码表
序号
中文描述
1 进气流量计电压错误 2 进气流量计修正系数高于最大允许值 3 进气流量计修正系数高于最大允许值（怠速时）或低于最小允许值 4 进气流量计修正系数怠速时高于最大允许值或低于最小允许值 5 进气流量计修正系数高于最大允许值或低于最小允许值 6 进气流量计传感器漂移高于最大门限值 7 进气流量计传感器漂移低于最小门限值 8 进气流量计传感器硬件信号错误 9 进气流量计原始信号高过最大门限值 10 进气流量计原始信号低过最小门限值 11 空调压缩机驱动无负载 12 空调压缩机驱动温度过高 13 空调压缩机减载驱动开路 14 空调压缩机减载驱动温度过高 15 空调压缩机减载驱动对电源短路 16 空调压缩机减载驱动对地短路 17 空调压缩机驱动对电源短路 18 空调压缩机驱动对地短路 19 空调开关CAN信号输入不信性 20 空调开关CAN信号输入超时 21 再生时空气控制器正向偏差超过上限门槛值 22 再生时空气控制器负向偏差超过上限门槛值 23 空气控制器正向偏差超过上限门槛值 24 空气控制器负向偏差超过上限门槛值 25 空气控制器从Rgn模式到Nrm时间太长
潍柴动力国三电控柴油机故障诊断及排
1.1 起动机不工作
检查是否挂在空档位置 检查车下停车开关的位置（应处于
断开状态） 检查空档开关（一般安装在变速箱
上）及接线是否完好，试着使用紧急 起动（点火开关持续按下3秒以上）
车下停车开关
空档开关
变速箱
潍柴动力机不工作
检查电瓶电压是否过低，以致 不能带动起动机
手压泵
回油空心螺 栓
放气螺 栓
潍柴动力国三柴油机故障诊断及排除
1.2 轨压无法建立（起动机能正常工作，但无法起动）
低压油路空气排净后仍不能起动柴油机，则判断 高压油路有空气，也需要排出高压油路的空气
排气方法：松开某缸高压油管，用起动机带动柴 油机运转直至高压油管持续出油为止！（不建议经 常拆卸高压油管接头！）
潍柴动力国三电控柴油机故障诊断及排除
潍柴动力股份有限公司 2019年8月12日
潍柴动力国三柴油机故障诊断及排除
柴油机的故障成
潍柴国三柴油机是在严格的质量保证体系下设计和 生产制造的，每一台出厂的柴油机都经过规定的测试。 同时柴油机又是一种精密机械，其功效要得到长久保 证，与正常的维护保养密不可分。引起柴油机早期失 效，一般有以下几个原因: 1.违章操作，管理和使用不善; 2.不按规定进行维护和保养甚至以修代养; 3.配件制造不良，特别是贪图便宜购买到假冒伪劣产 品，将大大缩短柴油机的寿命; 4.燃油和润滑油牌号选用不当或不合格 .
4)比较法：对某些总成或零部件，采用更换的 办法确定是否存在故障
潍柴动力国三柴油机故障诊断及排除
以上为机械方面故障的判断方法，在国三柴油机上 同样适用，机械故障可参照国二故障排除方法排除
5)故障诊断灯：当车出现故障时，可以通过整车仪表 盘上的闪码灯读出闪码，参照闪码表初步判断错误 原因
重汽潍柴步进电机国三组合仪表使用说明书
目录一、概述二、整体功能三、技术参数四、电气接线定义五、操作说明六、注意事项七、常见问题排查一、概述：DZ93189582160组合仪表是一款单片机编程控制、步进电机驱动指针指示、发光二极管背光的高档仪表。
在结构件上，仪表采用了流线型设计，塑料摩擦焊工艺，整体卡扣式安装，激光永久性标识。
图1 DZ93189582160组合仪表二、整体功能：1、仪表指示的表头由车速表、转速表、油量表、水温表、油压表、电压表、前后桥气压表等，共八个小表组成，采用步进电机驱动。
信号由传感器直接输入表头，车速表、转速表为脉冲频率信号，油量表、水温表、前后桥气压表为为电阻信号。
2、笔段液晶屏显示里程累计、小计和时钟。
3、仪表照明和报警图案全部由LED（发光二极管）点亮，发光寿命长，功耗低。
4、具有电压检测和数据保存功能，包括掉电数据保护。
掉电时，指针可以回零。
5、仪表当下列报警灯：被点亮激活时，STOP紧急停车报警灯同时被点亮激活。
仪表当下列报警灯：被点亮激活时，车辆故障报警灯同时被点亮激活。
三、技术参数：1、额定工作电压+24V DC，工作温度-30～+70℃；2、组合仪表的车速表速比为1000、车速传感器为每转8脉冲数、转速表为VECU 取信号M=4。
这里不列出具体品种的相关校验参数，详细请参见技术图纸。
四、电气接线定义（注意：两图需要拼接起来看）4.1插件A型号4.2插件B五、操作说明：1、双排液晶显示：上排显示里程小计或时钟，显示内容通过按键--短按是换页显示，长按是数值调整；液晶下排始终显示累计里程数。
上排显示时钟：0：00—23：59显示范围：里程：0—999999公里上排显示里程小计：0—999.9公里模式设定：●短按（≤2秒）：液晶上排在时钟、小计模式之间切换，下排一直显示累计里程●长按（≥2秒）：小计模式下，长按对小计清零时钟设定开关：●长按按钮进入小时调整状态，小时显示闪烁，短按单步调整、长按连续调整。
潍柴动力蓝擎国Ⅲ闪码表
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共轨系统相关部件
轨压传感器
共轨管限压阀打开，回油升温，发动机功率不足
轨压传感器损坏或连接线束短路、断路或1.77针脚短路
检查轨压传感器及其连接线束1.77针脚接线，必要时更换
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共轨限压阀问题
油路问题，可能是轨压传感器、流量计量单元，也有可能是进回油不畅导致轨压超调太多
检查油路是否有堵塞或弯折，轨压传感器、流量计量单元接插件是否插接不良
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进气温度传感器
检查进气传感器线束，必要时更换传感器
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冷却水温度传感器
跛行回家，导致进气加热不能正常工作
检查水温传感器线束，必要时更换传感器
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水温过高报警
水温超过设定值发动机限制功率运行
过热保护限制发动机功率
检查发动机冷却系统
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机油压力传感器压力过高报警
若仪表采用CAN总线，机油压力失真
潍柴动力蓝擎国Ⅲ闪码表（通用于WP高压共轨系列柴油机）
闪码
错误类型
相关部件
导致问题
出错原因
解决方法
闪码
灯亮
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与启动相关的错误
ECU内部AD转换器出错
ECU处理信号出错，发动机不能正常工作，甚至不启动
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钥匙（T15）断电一分钟，若问题仍存在则需要更换ECU
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同步信号出错
同步信号是喷油的正时依据。同步出错时不能正常喷油，可能启动困难、冒黑错误
潍柴国三电控柴油机
电磁阀 进油口
球阀 泻油孔 进油孔 控制腔
柱塞
针阀弹簧 进油槽 针阀腔
针阀
BOSCH电控高压共轨系统 BOSCH电控高压共轨系统 电控喷油器
喷油器接线柱
BOSCH电控高压共轨系统 BOSCH电控高压共轨系统
BOSCH电控高压共轨系统的优点
喷油压力的产生过程与喷油过程相互独立 喷油始点和燃油喷射量的控制各自独立，可实现精确控制 最小稳定燃油喷射量极小，可以达到1mm3/次 喷油系统响应灵敏，能灵活方便地实现预喷及后喷 高压喷射改善了进气和燃油的混合及燃烧过程，降低了柴油 机的排放 高压泵的驱动扭矩峰值小，机械噪音小 不必要对柴油机结构进行重大改进即可替代传统的喷油系统
点火开关 起动机
国三柴油机故障诊断及排除 1.2 轨压无法建立（起动机能正常工作，但无法起动） 轨压无法建立（起动机能正常工作，但无法起动） 共轨系统对燃油油路要求较高，低压油路（ 共轨系统对燃油油路要求较高，低压油路（油箱 精滤，回油）、高压油路（ ）、高压油路 粗滤 精滤，回油）、高压油路（高压油泵 共轨 喷油器）都要保证密闭。 高压油管 喷油器）都要保证密闭。任何一个环 节出了问题，轨压都不能正常建立， 节出了问题，轨压都不能正常建立，提示主机厂对 整个燃油油路高度重视。 整个燃油油路高度重视。
水温传感器 机油压力传感器 凸轮轴转速传感器
曲轴转速传感器
轨压传感器 进气压力传感器 进气压力传感器 进气压力传感器 进气压力传感器
BOSCH电控高压共轨系统 BOSCH电控高压共轨系统
3、BOSCH电控高压共轨系统工作原理 BOSCH电控高压共轨系统工作原理
在“共轨”蓄压器喷射系统中，压力的产生和燃油的喷射是完全 脱开的。喷射压力的产生跟发动机转速和喷油量毫不相干。燃油以一 定的压力储存在高压蓄压器（即所谓的“共轨”）内，时刻准备着进 行喷射。喷油量由驾车人确定，喷射起点、喷射持续时间和喷射压力 由ECU ECU（电子控制单元）计算出来。然后，ECU ECU触发电磁阀，使每一个 ECU ECU 气缸的喷油器（喷油单元）相应地进行喷射。 传感器组成如下：
潍柴国Ⅲ发动机故障闪码表_
4 缸喷油器错误
5 缸喷油器错误
6 缸喷油器错误
Bank1(控制 1.2.3 喷油器)错误
Bank2(控制 4.5.6 喷油器)错误
Chip(控制喷油)错误 最少正常工作的喷油器未达到 ECU 内部对喷油的限制 Fuel Filter 油中有水 propulsion 踏板传感器 1 错误 propulsion 踏板传感器 2 错误 propulsion 离合器开关错误 propulsion 制动开关错误 propulsion 油门与制动可信检测错误
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Dfp_IATSCD
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Dfp_CTSCD
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Dfp_CTSCDOvrTemp
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Dfp_OPSCD
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Dfp_OPSCD1
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Dfp_OTSCD
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Dfp_OTSCD1
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Dfp_Clg_AbsTst
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Dfp_Clg_DynTst
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Dfp_RailMeUn0
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Dfp_RailMeUn1
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流量计量单元错误
Dfp_MeUnCDNoLoad Dfp_MeUnCDSCBat
135 135
Dfp_MeUnCDSCGnd
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System/系统 Cylinder1 Cylinder1 Cylinder2 Cylinder2 Cylinder3 Cylinder3 Cylinder4 Cylinder4 Cylinder5 Cylinder5 Cylinder6 Cylinder6 Bank Bank Bank Bank chip chip
潍柴动力国 III 柴油机 闪码表
国三潍柴发动机故障案例汇总
维修方法
因在厂内该车就有启动困难现象，所以油箱至粗滤进油管路已经更换
过，客车的粗滤清一般为了考虑泵油方便，都将粗滤移到了车架后面，粗滤
的进油口及出油口接头都要由主机厂来自行设计，这一部分也是检查的重点。
拆下粗滤后，发现粗滤的进
油口螺纹有损伤，且进油口有细
微裂纹，因低压油路有密封不严
的环节，所以导致低压油路进入 空气，直接导致轨压难以建立，
未发现数据有任何错误。重新换上ECU3，在换之前将发电机和
电瓶的接线拆下，换上ECU3后再将电机和电瓶接线柱接上，并 刷如原数据，顺利起车，之后试车未出现异常现象，问题解决。
分析：
ECU2为什么会烧坏有以下可能： 1.在换ECU2时没有断开发电机，发电机内还存有一
定电压致使ECU2烧坏。
2.在换上ECU2上电后，车上的某个用电电器在打开 或关闭时产生的瞬时大电流或电压被ECU所消耗，
案例四（合肥中心：陈庭洲）
柴油机系列：WP10.336 配套厂家： 郑州宇通
故障时间：2008.02.26
故障描述
发动机无法启动 ，自检灯不自检 故障原因分析 怀疑ECU已烧坏
维修方法
检查1.02 1.03 1.08 1.09和1.40电压都为24V，说明有电压输 入，但是与ECU到底通讯上没有，还是存在接触不好的可能性。 经过进一步检查大插接头线束，发现1.40阵脚没有完全插入，接 触不好，插紧后故障灯常亮。K线这时也有电压23伏，但是INCA
此处已烧毁
图1
1．70针脚被烧断
图2
案例十（长沙中心）
柴油机系列：WP10.336 配套厂家：美的客车 故障描述 发动机不能启动 故障原因分析 1、首先确认ECU已经开始工作，方法是用钥匙 开关给ECU上电时，诊断灯和冷启动灯会闪下然 后灭掉，说明ECU在进行自检，并开始工作。
潍柴国Ⅳ发动机故障闪码表_
26 进气加热栅格关闭时电压信号高 27 进气加热栅格关闭时电压信号低 28 进气加热栅格开通时电压信号高 29 进气加热栅格开通时电压信号低 30 进气加热栅格常通 31 冷起动时温度_0不可信 32 冷起动时温度_1不可信 33 冷起动时温度_2不可信 34 冷起动时温度_3不可信 35 冷起动时温度_4不可信 36 冷起动时多个温度不可信 37 执行器_0对电源短路 38 执行器_1对电源短路 39 执行器_2对电源短路 40 执行器_0对地短路 41 执行器_1对地短路 42 执行器_2对地短路 43 蓄电池电压太高 44 蓄电池电压太低 45 蓄电池电压信号太高 46 蓄电池电压信号太低 47 主、辅刹车信号不在同一状态 48 刹车信号错误 49 CAN节点A总线错误 50 CAN节点B总线错误 51 CAN节点C总线错误 52 CAN节点D总线错误 53 CAN节点A总线关闭错误 54 CAN节点B总线关闭错误 55 CAN节点C总线关闭错误 56 CAN节点D总线关闭错误
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