故障闪码读取方法.docx
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故障闪码读取方法.docx
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故障闪码读取方法
发动机的故障闪码读取方法及故障代码
(1)故障灯状态说明:
本电控系统的故障灯一般位于仪表盘显示屏上(如下图所示),个别整车厂也可能把故障灯布置于仪表盘的按键位置。
正常来说,电控系统上电后,未起动发动机时故障灯是常亮的,发动机起动后故障灯熄灭,如果出现电控系统上电后故障灯不亮,此时可能是故障灯或其驱动线束有问题;如果电控系统上电后故障灯闪烁,此时可能发动机存在电控系统相关故障(可能为当前故障或历史故障),若其故障为历史故障则发动机起动后故障灯会熄灭,历史故障码一般可以通过关钥匙后断开发动机供电总闸片刻(20秒以上)来清除;如果电控系统上电后,故障灯常亮或闪烁,发动机起动后故障灯仍然常亮或闪烁,则发动机可能存在电控系统相关故障,此时可以通过读取故障闪码来判断是什么故障以针对性检查排除故障。
(2)故障闪码的读取方法和输出原理:
在电控系统上电后,当ECM的56#针脚接收到接地信号后,故障闪码功能将被激活并通过故障指示灯闪烁输出。
当ECM监测到用户请求故障闪码输出时,ECM将通过闪码按照顺序以一个标准次数输出一个标准代码。
该标准代码设置为123,故障代码闪码输出标准次数设置为3次。
标准代码以标定的次数输出后,第一个储存在ECM中的历史故障码将以同样的速度和次数输出,然后根据储存在ECM中的故障脉谱依次输出故障码,ECM不会根据故障码激活的先后顺序输出故障码。
如果没有历史故障码了,那么将一直重复输出标准故障码。
图一为一个通过故障灯闪码进行故障输出的一个例子:
说明:
该例子中闪码输出次序是先输出标准码123,然后逐一输故障码,标准码和故障码输出时均连续闪2遍,上述读取的故障码为221,可对应诊断手册查找故障码DTC221查找相关故障解析。
玉柴故障闪码输出相关参数设置如下表:
MILBlinkCodeTimings
Delaybeforestartofcodeblinking
启动闪码功能之前的延时时间
200
Ms
Blinkon-time
闪亮时间
400
Ms
Blinkoff-time
闪灭时间
400
Ms
Timebetweendigitsinacode
一个故障码中的数字之间的间隔时间
1200
Ms
Extratimebetweencoderepeats
一个故障码的重复周期
2000
Ms
Extratimebetweencodes
故障码之间的时间周期
3000
Ms
Extratimebeforestartingcodesover
启动一个更新的故障码的时间周期
2000
Ms
Numberoftimestorepeatacode
故障码重复次数
3
Defaultfirstcode(alwaysoutput)
缺省的第一个故障码(一直输出)
123
Key-onengine-offstoredfaultMILon-time
钥匙开关打开、发动机不启动,但有历史故障码时故障灯亮着的时间
4500
Ms
Key-onengine-offstoredfaultMILoff-time
钥匙开关打开、发动机不启动,但有历史故障码时故障灯灭的时间
500
Ms
PowerderatemodeMILfast-blinkon-time
降功率保护时MIL快闪亮时间
250
Ms
PowerderatemodeMILfast-blinkoff-time
降功率保护时MIL快闪灭时间
250
Ms
(3)故障代码及故障解释列表
故障描述
故障码/闪码
rankand/orcamcouldnotsynchronizeduringstart--曲轴信号或凸轮轴信号启动时不能同步
16
FPlowvoltage
91
FPhighvoltage
92
MAPvoltagelow--进气岐管空气压力(MAP)电压低
107
MAPpressurehigh--进气歧管压力高
108
IAThigherthanexpectedstage1--IAT高于1级限值
111
IATvoltagelow--IAT电压低
112
IATvoltagehigh--IAT电压高
113
ECThigherthanexpectedstage1--ECT高于1级限值
116
ECTvoltagelow-ECT/CHT电压低
117
ECTvoltagehigh-ECT/CHT电压高
118
TPS1-2lowerthanexpected-TPS1比TPS2低
121
TPS1voltagelow-TPS1信号电压低
122
TPS1voltagehigh-TPS1信号电压高
123
IAThigherthanexpectedstage2-IAT高于2级限值
127
BPpressurelow-大气环境压力低
129
EGO1open/lazy-氧传感器开路/罢工
134
EGO3open/lazy
140
EGO2open/lazy
154
EGO4open/lazy
160
Adaptive-learngasolinebank1high
171
Adaptive-learngasolinebank1low
172
Adaptive-learngasolinebank2high
174
Adaptive-learngasolinebank2low
175
FTlowvoltage
182
FThighvoltage
183
Gaseousfueltemperaturesenderlowvoltage
187
Gaseousfueltemperaturesenderhighvoltage
188
ECThigherthanexpectedstage2-发动机冷却液温度高于2级限值
217
RPMhigherthanmaxallowedgovernspeed-发动机转速比最大允许调速转速高
219
TPS1-2higherthanexpected-TPS1比TPS2开度高
221
TPS2voltagelow-TPS2信号电压低
222
TPS2voltagehigh-TPS2信号电压高
223
Boostcontroloverboostfailure
234
TIPactive-TIP传感器报错
236
TIPlowvoltage-TIP电压低
237
TIPhighvoltage-TIP传感器电压高
238
Injector1openorshorttoground
261
Injector1coilshorted
262
Injector2openorshorttoground
264
Injector2coilshorted
265
Injector3openorshorttoground
267
Injector3coilshorted
268
Injector4openorshorttoground
270
Injector4coilshorted
271
Injector5openorshorttoground
273
Injector5coilshorted
274
Injector6openorshorttoground
276
Injector6coilshorted
277
Injector7openorshorttoground
279
Injector7coilshorted
280
Injector8openorshorttoground
282
Injector8coilshorted
283
Injector9openorshorttoground
285
Injector9coilshorted
286
Injector10openorshorttoground
288
Injector10coilshorted
289
Boostcontrolunderboostfailure
299
Knock1excessiveorerraticsignal
326
Knock1sensoropenornotpresent
327
Knock2excessiveorerraticsignal
331
Knock2sensoropenornotpresent
332
CRANKinputsignalnoise-曲轴输入信号有干扰
336
Cranksignalloss曲轴输入信号丢失
337
CAMinputsignalnoise凸轮轴输入信号干扰
341
LossofCAMinputsignal凸轮轴输入信号丢失
342
Catalystinactiveongasoline(Bank1)
420
Catalystinactiveongasoline(Bank2)
430
Roadspeedinputlossofsignal
502
IACgroundshort
508
IACcoilopen/short
509
Oilpressuresenderhighpressure
521
Oilpressuresenderlowvoltage
522
Oilpressuresenderhighvoltage
523
Oilpressurelow
524
Oilpressuresenderlowpressure
524
Vbatvoltagelow电源电压低
562
Vbatvoltagehigh电池电压高
563
Microprocessorfailure-FLASH微处理器失效
601
Microprocessorfailure-RAM--微处理器-随机存储器失效
604
Microprocessorfailure-COP处理器-COP部分失效
606
Startrelaycoilopen
615
Startrelaygroundshort
616
Startrelaycoilshorttopower
617
Fuelpumprelaycoilopen
627
Fuel-pumphigh-sideopenorshorttoground
628
Fuelpumprelaycontrolgroundshort
628
Fuel-pumphigh-sideshorttopower
629
Fuelpumprelaycoilshorttopower
629
Sensorsupplyvoltage1low提供给传感器的5伏参考电压1低
642
Sensorsupplyvoltage1high输出的5V参考电压1高于预定值
643
MILopen故障灯开路
650
Sensorsupplyvoltage2low
652
Sensorsupplyvoltage2high
653
Powerrelaycoilopen
685
Powerrelaygroundshort
686
Powerrelaycoilshorttopower
687
RPMabovefuelrevlimitlevel发动机转速高于燃料转速限制
1111
RPMabovesparkrevlimitlevel发动机转速高于点火限制转速
1112
FPP1/2simultaneousvoltagesout-of-range(redundan
1121
FPP1/2donotmatcheachotherorIVS(redundancyl
1122
WGPvoltagehigh
1131
WGPvoltagelow
1132
Closed-loopLPGhighLPG闭环修正量高
1151
Closed-loopLPGlowLPG闭环修正量低
1152
Closed-loopNGhighNG闭环修正量高
1153
Closed-loopNGlowNG闭环修正量低
1154
Closed-loopgasolinebank1high
1155
Closed-loopgasolinebank1low
1156
Closed-loopgasolinebank2high
1157
Closed-loopgasolinebank2low
1158
Adaptive-learnLPGhighLPG自适应高
1161
Adaptive-learnLPGlow
1162
Adaptive-learnNGhigh
1163
Adaptive-learnNGlow
1164
CatalystinactiveonLPG
1165
CatalystinactiveonNG
1166
MegaJectordeliverypressurehigherthanexpected
1171
MegaJectordeliverypressurelowerthanexpected
1172
MegaJectorcommlost
1173
MegaJectorvoltagesupplyhigh
1174
MegaJectorvoltagesupplylow
1175
MegaJectorinternalactuatorfaultdetection
1176
MegaJectorinternalcircuitryfaultdetection
1177
MegaJectorinternalcommfaultdetection
1178
Fuelrun-outlongerthanexpected
1181
EMWT1voltagehigh
1411
EMWT2voltagehigh
1412
EMWT1voltagelow
1413
EMWT2voltagelow
1414
EMWT1higherthanexpectedstage1
1415
EMWT2higherthanexpectedstage1
1416
EMWT1higherthanexpectedstage2
1417
EMWT2higherthanexpectedstage2
1418
AUXanalogPull-Up1highvoltage1511模拟信号辅助通道PU1电压高
1511
AUXanalogPull-Up1lowvoltage辅助通道PU1电压低
1512
AUXanalogPull-Up2highvoltage
1513
AUXanalogPull-Up2lowvoltage
1514
AUXanalogPull-Down1highvoltage
1515
AUXanalogPull-Down1lowvoltage
1516
AUXanalogPull-Up3highvoltage
1517
AUXanalogPull-Up3lowvoltage
1518
CHThigherthanexpectedstage1
1521
CHThigherthanexpectedstage2
1522
Gov1/2/3interlockfailure
1531
AUXanalogPull-Up/Down1highvoltage
1541
AUXanalogPull-Up/Down1lowvoltage
1542
AUXanalogPull-Up/Down2highvoltage
1543
AUXanalogPull-Up/Down2lowvoltage
1544
AUXanalogPull-Up/Down3highvoltage
1545
AUXanalogPull-Up/Down3lowvoltage
1546
AUXdigital1highvoltage
1551
AUXdigital1lowvoltage
1552
AUXdigital2highvoltage
1553
AUXdigital2lowvoltage
1554
AUXdigital3highvoltage
1555
AUXdigital3lowvoltage
1556
Sensorsupplyvoltage1and2out-of-range传感器供给电压(5伏输出1/2)同时超出范围
1611
Microprocessorfailure-RTI1
1612
Microprocessorfailure--微处理器故障-RTI2
1613
Microprocessorfailure-RTI3
1614
Microprocessorfailure-A/D
1615
Microprocessorfailure-Interrupt
1616
RS-485Rxinactive
1621
RS-485Rxnoise
1622
RS-485Rxbadpacketformat
1623
RS-485remoteshutdownrequest
1624
J1939shutdownrequest
1625
CAN-J1939Txfault
1626
CAN-J1939Rxfault
1627
J1939CANaddress/engine-numberconflict-CAN通讯地址冲突故障
1628
J1939TSC1messagereceiptloss
1629
J1939ETCmessagereceiptloss
1630
PWM1-Gauge1open/groundshort-PWM1/Gauge1开路/对地短接
1631
PWM1-Gauge1shorttopower-PWM1/Gauge1与电源短路
1632
PWM2-Gauge2open/groundshort
1633
PWM2-Gauge2shorttopower
1634
PWM3-Gauge3open/groundshort
1635
PWM3-Gauge3shorttopower
1636
PWM4open/groundshort
1637
PWM4shorttopower
1638
PWM5open/groundshort
1639
PWM5shorttopower
1640
Buzzercontrolgroundshort-蜂鸣器控制对地短路
1641
Buzzeropen-蜂鸣器开路
1642
Buzzercontrolshorttopower-蜂鸣器控制与电源短路
1643
MILcontrolgroundshort-故障指示灯控制地线短路
1644
MILcontrolshorttopower-故障指示灯控制与电源短路
1645
UnabletoreachlowerTPS--不能达到较低TPS电压
2111
UnabletoreachhigherTPS--不能达到更高TPS
2112
FPP1higherthanIVS--FPP1比IVS高
2115
FPP2higherthanIVS
2116
FPP1invalidvoltageandFPP2disagreeswithIVS(re
2120
FPP1-2lowerthanexpected
2121
FPP1voltagehigh---FPP1电压高
2122
FPP1voltagelow
2123
FPP2invalidvoltageandFPP1disagreeswithIVS(re
2125
FPP1-2higherthanexpected
2126
FPP2voltagelow
2127
FPP2voltagehigh
2128
IVSstuckat-idle,FPP1/2match
2130
IVSstuckoff-idle,FPP1/2match
2131
TPS1/2simultaneousvoltagesout-of-range
2135
FPP1lowerthanIVS
2139
FPP2lowerthanIVS
2140
BPpressurehigh
2229
Sparkcoil1primaryopenorshorttoground-1#点火线圈初级线圈开路或短路接地
2300
Sparkcoil1primaryshorted-1#点火线圈初级线圈与电源短接
2301
Sparkcoil2primaryopenorshorttoground-1#点火线圈初级线圈开路或短路接地
2303
Sparkcoil2primaryshorted-2#点火线圈初级线圈与电源短接
2304
Sparkcoil3primaryopenorshorttoground-3#点火线圈初级线圈开路或短路接地
2306
Sparkcoil3primaryshorted-3#点火线圈初级线圈与电源短接
2307
Sparkcoil4primaryopenorshorttoground-4#点火线圈初级线圈开路或短路接地
2309
Sparkcoil4primaryshorted-4#点火线圈初级线圈与电
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