What is the common problem of this kind of failure of guided vehicles? 16825.

17972 throttle body control unit (J338): the voltage is too low during the basic setting.

17973 throttle body control unit (J338): the bottom dead center has not been reached.

17974 load signal from air conditioning compressor: the signal is unreliable.

17975 load signal comes from air conditioning compressor: no signal.

17976 throttle body control unit (J338): mechanical failure

17977 cruise control switch (E45): unreliable signal.

17978 the engine control unit is locked by the burglar alarm control unit.

17979 left engine unit solenoid valve (N 144): short circuit to positive pole.

17980 left engine unit solenoid valve (N 144): short circuit to ground.

1798 1 left engine unit solenoid valve (N 144): open circuit.

17982 left engine unit solenoid valve (N 144): electrical fault.

17983 right engine unit solenoid valve (N 145): short circuit to positive pole.

17984 right engine unit solenoid valve (N 145): short circuit to ground.

17985 right engine unit solenoid valve (N 145): open circuit.

17986 right engine unit solenoid valve (N 145): electrical fault.

17987 throttle body control unit (J338): adaptation is not started.

17988 Throttle actuator (cylinder bank 1) malfunction.

17989 Throttle Body Control Unit (J338): Basic settings were not performed.

17990 reaches the adaptive limit of idle speed.

1799 1 transmission device solenoid valve (N262/N263): short circuit to positive pole.

17992 electromagnetic valve of transmission device (N262/N263): short circuit to ground.

17993 transmission device solenoid valve (N262/N263): open circuit.

17994 electromagnetic valve of engine installation (N 144/N 145): short circuit to positive pole.

17995 engine group solenoid valve (N 144/N 145): short circuit to ground.

17996 engine group solenoid valve (N 144/N 145): short circuit or open circuit.

17997 temperature setting potentiometer (G267): short circuit to ground.

17998 temperature setting potentiometer (G267): open circuit

17999 booster control valve (N75): not started.

18000 altitude/atmospheric pressure sensor: unreliable signal.

1800 1 altitude adaptation: signal out of tolerance.

18002 oil temperature sensor: cam timing adjustment (G277): short circuit to positive pole.

18003 oil temperature sensor: cam timing adjustment (G277): open circuit or short circuit to ground.

18004 power system data bus: the unreliable signal comes from the suspension height adjustment control unit.

18005 powertrain data bus: the missing information comes from the suspension height adjustment control unit.

18006 oil temperature sensor: cam timing adjustment (G277): unreliable signal.

18007 idle speed adjustment: it is lean (engine speed is too high).

18008 voltage supply terminal 15: the voltage is too low.

18009 voltage supply terminal 30 relay (J3 17): the signal is unreliable.

Voltage supply terminal 30: The voltage is too low.

180 1 1 Control unit self-diagnosis: internal error.

Driver's control unit: internal error.

180 13 road condition/electrical fault of acceleration sensor

180 14 road condition/engine torque signal (from ABS control) electrical fault.

180 15 speed error message: from the dashboard.

180 16 steering misalignment information: from the steering angle sensor.

180 17 collision shutdown has been activated.

180 18 control unit internal error.

180 19 engine fault indicator: short circuit to ground.

18020 Engine control unit coding error.

Engine fault indicator: open circuit or short circuit to positive pole.

Engine fault indicator: unreliable signal.

18023 engine oil temperature sensor (G8): unreliable signal.

18024 glow plug preheating indicator lamp (K29): short circuit to positive pole.

18025 glow plug preheating indicator (K29): open circuit or short circuit to ground.

18026 glow plug relay (J52): short circuit to positive pole.

18027 glow plug relay (J52): open circuit or short circuit to ground.

18028 engine coolant temperature signal: open circuit or short circuit to positive pole.

18029 engine coolant temperature signal: short circuit to ground.

18030 engine coolant temperature signal: the signal is unreliable.

1803 1 power data bus: no communication information.

18032 engine fault light request activation (check TCM fault memory)

18033 powertrain data bus: unreliable signal comes from transmission control unit.

18034 powertrain data bus: missing information: from transmission control unit.

18035 powertrain data bus: missing information: from injection control unit.

18036 powertrain data bus: missing information: from steering angle sensor.

18037 power system data bus: missing information: from ADR control unit.

18038 throttle position sensor (G79): signal is too small.

18039 throttle position sensor (G79): signal is too large.

18040 throttle position sensor (G79): power failure

1804 1 accelerator pedal position sensor 2(G 185): The signal is too small.

18042 accelerator pedal position sensor 2(G 185): The signal is too large.

18043 power system data bus: missing information: from air conditioning control unit.

18044 powertrain data bus: missing information: from airbag control unit.

18045 power system data bus: lost information: from electrical system.

18046 powertrain data bus: missing information: from clutch control unit.

18047 accelerator pedal position sensor 1/2(G79/G 185): The signal is unreliable.

18048 internal error of control unit: (EEPROM) error.

18049 Please check the fault memory: air conditioning control unit.

18050 Please check the fault memory: airbag control unit.

1805 1 Please check the fault memory: clutch electric control unit.

18052 Please check the fault memory: clutch control unit.

18053 power system data bus: missing information: from AWD control unit.

18054 Please check the fault memory: AWD control unit.

18055 check the coding of power data bus control unit.

18056 power data bus: fault.

18057 power system data bus: missing information: from ABS control unit.

18058 powertrain data bus: missing information: from the dashboard.

18059 power system data bus: missing information:

18060 Please check the fault memory: automatic transmission control unit.

1806 1 Please check the fault memory: ABS control unit.

18062 Please check the fault memory: instrument panel.

18063 Please check the fault memory: ADR control unit.

18064A/C clutch electromagnetic relay circuit: short circuit to ground.

18065A/C clutch electromagnetic relay circuit: short circuit to positive pole.

18066 power system data bus: the signal is unreliable from ADR control unit.

18067 cooling fan control 1: short circuit to positive pole.

18068 cooling fan control 1: short circuit to ground.

18069 cooling fan control 2: short circuit to positive pole

18070 cooling fan control 2: short circuit to ground

1807 1 injection control: positive short circuit.

18072 injection control: positive short circuit

Injection control: mechanical failure.

18074 fuel injection valve: cylinder 1(N240): electrical fault.

18075 fuel injection valve: cylinder 2 (N24 1): electrical fault.

18076 fuel injection valve: cylinder 3 (N242): electrical fault.

18077 fuel injection valve: cylinder 4 (N243): electrical fault.

18078 fuel injection valve: cylinder 5 (N244): electrical fault.

18079 fuel injection valve: cylinder 6 (N245): electrical fault.

18080 cooling fan control 1: open circuit or short circuit to ground.

1808 1 wrong speed signal: from ABS control unit.

18082 power system data bus: the signal is unreliable from the dashboard.

18083 power system data bus: unreliable signal comes from fuel injection control unit.

18084 fault indicator driving circuit (K 132): electrical fault.

18085 fault indicator driver circuit (K 132): short circuit to positive pole.

18086 fault indicator driver circuit (K 132): short circuit to ground.

18087 fault indicator driver circuit (K 132): open circuit.

18088 reset resistor limping mode activated

18089 control unit programming: incomplete.

18090 power system data bus: unreliable signal comes from ABS control unit.

1809 1 power system data bus: unreliable signal comes from airbag control unit.

18092 control unit programming: communication error.

18093 power system data bus: the signal is unreliable from the steering angle sensor.

18094 control unit failure: programming error.

18095 power system data bus: unreliable signal comes from air conditioning control unit.

18096 power system data bus: the signal from AWD control unit is unreliable.

18097 power system data bus: the signal is unreliable from the central electrical appliance.

18098 fault indicator (K83): electrical fault.

18099 fault indicator (K83): open circuit

18 100 fault indicator (K83): short circuit to ground.

18 10 1 fault indicator (K83): short circuit to positive electrode.

18 102 fault indicator (K83): open circuit or short circuit to ground.

18 103 power system data bus: the signal from the clutch control unit is unreliable.

18 104 powertrain data bus: the signal is unreliable from the steering wheel control unit.

Please check the fault memory: steering angle sensor.

18 106 Please check the fault memory: steering wheel electrical appliances.

18 107 powertrain data bus: missing information: from steering wheel appliances.

18 1 12 forced low speed switch (F8): electrical fault.

18 1 13 shift point monitoring: reaching the adaptive limit.

Left Front Wheel Speed Sensor (G47): The signal is unreliable.

18 124 wheel speed sensor: right front (G45): unreliable signal.

18 129 wheel speed sensor: left rear (G46): unreliable signal.

18 13 1 interlock start signal: open circuit.

18 132 internal lock start signal: short circuit to ground.

18 134 wheel speed sensor: right rear (G44): unreliable signal.

Wheel speed sensor: unreliable signal.

18 137 internal lock start signal: short circuit to positive pole.

18141tiptronic dn switch (F 189): short circuit to ground.

18 147TiptronicUp switch (F 189): short circuit to ground.

18 148 clutch temperature monitoring

18 149 reaches the adaptive limit of clutch pressure.

18 150 reaches the adaptive limit of clutch torque.

18 15 1 clutch monitoring: signal is too large.

18 152 electronic identification switch (F 189): short circuit to ground.

18 153 automatic transmission solenoid valve power supply voltage: short circuit to positive pole.

18 154 automatic transmission solenoid valve voltage supply: electrical fault.

18 155 power supply voltage of automatic transmission solenoid valve: open circuit or short circuit to ground.

Automatic transmission control unit: internal error.

18 157 automatic transmission control unit: coding error.

18 158 The power supply voltage is too low.

18 159 The power supply voltage is too high.

18 160 voltage supply failure

18161tiptronic switch (F 189): the signal is unreliable.

18 162TiptronicUp switch (F 189): open circuit or short circuit to positive pole.

18 163TiptronicDn switch (F 189): open circuit or short circuit to positive pole.

18 164 electronic identification switch (F 189): open circuit or short circuit to positive pole.

65438+

18 166 power supply voltage: terminal 15: open circuit.

18 168 shift lock solenoid valve (N 1 10): electrical fault.

18 169 shift lock solenoid valve (N 1 10): short circuit to ground.

18 170 shift lock solenoid valve (N 1 10): short circuit to positive pole.

18 17 1 shift lock solenoid valve (N 1 10): open circuit.

18 172 automatic transmission temperature monitoring

18 173 hydraulic pressure sensor 2(G 194): reaching the adaptive limit.

18 174 throttle angle signal from engine control unit: open circuit or short circuit to positive pole.

Throttle angle signal from engine control unit: short circuit to ground.

18 176 hydraulic sensor 2(G 194): the signal is too large.

18 177 hydraulic sensor 2(G 194): the signal is too small.

Load signal from engine control unit: The signal is unreliable.

18 179 load signal from engine control unit: open circuit or short circuit to positive pole.

Load signal from engine control unit: short circuit to ground.

18 18 1 hydraulic sensor 1(G 193): The signal is too large.

18 182 hydraulic sensor 1(G 193): the signal is too small.

18 183 hydraulic sensor 1(G 193): reaching the adaptive limit.

18 184 hydraulic sensor 1(G 193): the signal is unreliable.

18 185 hydraulic sensor 2(G 194): the signal is unreliable.

18 186 solenoid valve 7: electrical fault

18 188 The adjustment of the engine has taken effect.

Engine torque reduction signal: open circuit or short circuit to ground.

18 190 engine torque reduction signal: short circuit to positive pole.

18 192 upshift/downshift signal: open circuit or short circuit to ground.

18 193 liter/downshift signal: short circuit to positive pole.

18 194 backup lamp signal: open circuit.

18 195 backup lamp signal: short circuit to ground.

18 196 backup lamp signal: short circuit to positive pole.

18 197 idle signal: error message from ECU.

18 198 speed range display signal: open circuit.

18 199 speed range display signal: short circuit to ground.

18200 speed range display signal: short circuit to positive pole.

1820 1 gearbox output speed sensor 2(G 196): No signal.

18203 speed signal: open circuit

18204 speed signal: short circuit to ground.

18205 speed signal: short circuit to positive pole.

18206 gearbox output speed sensor 2(G 196): the signal is unreliable.

18207 transmission output speed sensor 2(G 196): the speed is too high.

18208 hydraulic valve (N33 1): electrical fault.

18209 sound signal circuit: short circuit to positive pole.

182 10 clutch pedal switch (F 194): unreliable signal.

182 1 1 planetary gear mechanism: mechanical failure.

182 12 hydraulic positioner sensor (G302): electrical fault.

182 13 hydraulic positioner sensor (G302): located above the top dead center.

182 14 hydraulic positioner sensor (G302): above the bottom dead center.

182 15 hydraulic positioner sensor (G302): basic setting/adaptive error.

182 16 hydraulic positioner sensor (G302): the signal is unreliable.

182 17 hydraulic pump (V 190): electrical failure.

1822 1 automatic transmission pressure regulating valve 1(N2 15): electrical fault.

18222 automatic transmission pressure regulating valve 1(N2 15): open circuit or short circuit to ground.

18223 automatic transmission pressure regulating valve 1(N2 15): short circuit to positive pole.

18226 automatic transmission pressure regulating valve 2(N2 16): electrical fault.

18227 automatic transmission pressure regulating valve 2(N2 16): open circuit or short circuit to ground.

18228 automatic transmission pressure regulating valve 2(N2 16): short circuit to positive pole.

1823 1 automatic transmission pressure regulating valve 3(N2 17): electrical fault.

18232 automatic transmission pressure regulating valve 3(N2 17): open circuit or short circuit to ground.

18233 automatic transmission pressure regulating valve 3(N2 17): short circuit to positive pole.

18236 automatic transmission pressure regulating valve 4(N2 18): electrical fault.

18237 automatic transmission pressure regulating valve 4(N2 18): open circuit or short circuit to ground.

18238 automatic transmission pressure regulating valve 4(N2 18): short circuit to positive pole.

18242 automatic transmission pressure regulating valve 5(N233): open circuit or short circuit to ground.

18243 automatic transmission pressure regulating valve 5(N233): short circuit to positive pole.

18249 incompatible engine/transmission control unit

18250 Please check the fault memory: instrument panel.

1825 1 Please check the fault memory: ADR control unit.

18252 Please check the fault memory: central electrical control unit.

18253 Please check the fault memory: Steering Electrical Appliance (J527).

18255 Please check the fault memory: ABS control unit.

18256 Please check the fault memory: engine control unit.

18257 Please check the fault memory: transmission control unit.

18258 power system data bus: missing information: from ECU control unit.

18259 power system data bus: missing information: from ABS control unit.

18260 power system data bus: ECU information is unreliable.

1826 1 power system data bus: unreliable information ECU comes from ABS control unit.

18262 data bus of power supply system: hardware failure

18263 power system data bus: software version monitoring

18264 throttle body positioner (G69): error message from ECU.

18265 load signal: error message from ECU.

18266 engine speed signal: error message from ECU.

18267 brake light switch signal: error message from ECU.

18268 forced low-speed switch signal: error message from ECU.

18269 throttle position sensor (G79): error message from ECU.

18270 powertrain data bus: missing information: from the dashboard.

1827 1 powertrain data bus: missing information: from steering angle sensor.

18272 power system data bus: missing information: from ADR control unit.

18273 power system data bus: missing information: from central electric appliance.

18274 power system data bus: lost information

18275 data bus of power supply system: missing information: from steering wheel electric appliance (J527)

18308 cooling fan control 2: open circuit or short circuit to ground

18309 cooling fan control after operation (J 138): short circuit to positive pole.

Cooling fan control after 183 10 operation (J 138): open circuit or short circuit to ground.

183 1 1 cooling valve (N3 13): the positive electrode is short-circuited.

183 12 cooling valve (N3 13): open circuit or short circuit to ground.

183 13 air conditioning fan relay (J536): short circuit to positive pole.

183 14 air conditioning fan relay (J536): open circuit or short circuit to ground.

183 15 engine/engine data bus: fault.

Engine/engine data bus: software version monitoring.

183 17 engine/engine data bus: information from the control unit-1- is lost.

183 18 engine/engine data bus: information from control unit -2- is lost.

183 19 synchronization signal between engines: electrical fault.

18320 brake booster pressure sensor (G294): short circuit to positive pole.

1832 1 brake booster pressure sensor (G294): short circuit to ground.

18322 brake booster pressure sensor (G294): the signal is unreliable.

18323 (j151) cooling fan relay after operation: short circuit to positive pole.

Cooling fan relay after18324 (j151) operation: short circuit to ground.

18325 cooling fan relay after operation (J 15 1): open circuit.

18326 load signal from generator terminal DF: open circuit or short circuit to positive pole.

18327 load signal from generator terminal DF: short circuit to ground.

18328 engine group solenoid valve (N 144/N 145): open circuit or short circuit to ground.

18329 external temperature sensor 2(G249): short circuit to ground.

18330 external temperature sensor 2(G249): open circuit or short circuit to positive pole.

1833 1 Query fault memory: control unit -2-

Controller pin code: unreliable signal

18333 auxiliary heat pump relay (J496): short circuit to positive pole.

18334 auxiliary heat pump relay (J496): short circuit to ground.

18335 auxiliary heat pump relay (J496): open circuit

18336 alarm query is not completed.

65280 development code-1-

6528 1 development code -2-

65282 development code -3-

65535 There is no fault or the control unit is damaged.

99000 Open circuit or short circuit to ground

9900 1 short circuit to positive electrode.

99002 short circuit to ground

There is no signal at 99003.

99004 mechanical failure

99005 input open circuit

99006 signal is too big.

99007 signal is too small.

99008 exceeds the adjustment limit.

99009 exceeds the adaptive limit.

990 10 did not reach the adaptive limit.

990 1 1 failed to reach the adjustment limit.

990 12 exceeds the adaptive limit (MUL).

990 13 did not reach the adaptive limit (MUL).

990 14 exceeds the adaptive limit (added)

990 15 did not reach the adaptive limit (added).

990 16 signal exceeds the specified value.

990 17 adjustment difference

990 18 high stop value

990 19 low stop loss value

99020 basic setup failure

9902 1 Pre-pressurization time is too long.

99022 front-end decompression time is too long.

After 99023, the pressurization time is too long.

99024 Rear decompression time is too long.

99025 undefined switching condition

99026 output is open.

99027 signal is unreliable.

99028 Short circuit to positive.

99029 Short circuit to ground

99030 Open circuit or short circuit to positive electrode

9903 1 Open circuit or short circuit to ground.

The resistance of 99032 is too high.

99033 resistance is too small.

99034 Currently undefined fault type

99035 Undefined fault type, please refer to the maintenance manual.

99036 open circuit

99037 Fault/Defect

The 99038 output cannot be switched or shorted to the positive pole.

99039 output cannot be switched or shorted to ground.

99040 is shorted to another output.

9904 1 is locked or has no voltage.

99042 speed difference is too big.

99043 closed

99044 short circuit

99045 connector

99046 leak

99047 There is no communication or connection error.

99048 voltage supply

99049 has no communication.

99050 setting not reached (early)

The setting of 9905 1 was not reached (late)

99052 voltage is too high

99053 voltage is too low.

99054 invalid device

99055 adaptive fault

99056 emergency mode

99057 electronic circuit failure

99058 cannot be locked.

99059 cannot be unlocked.

99060 lock not engaged.

9906 1 The lock is not disengaged.

99062 is not set or set incorrectly.

99063 temperature off

99064 is currently untestable.

99065 is not authorized.

99066 does not match.

99067 did not reach the marked position.

99068 cylinder 1

99069 cylinder 2

99070 cylinder 3

9907 1 cylinder 4

99072 cylinder 5

99073 cylinder 6

99074 cylinder 7

99075 cylinder 8

99076 Terminal 30 does not exist.

99077 internal voltage source

99078 information lost

99079 Please check the fault memory.

99080 single-wire operation mode

9908 1 open

99082