Reference information for self-troubleshooting for Caterpillar machines equipped with an electronic selfdiagnostic and engine management system.
Diagnostic codes are used to locate and repair faulty parts when servicing Caterpillar engines.
(CID) is the diagnostic trouble code, it indicates the number of a specific node, component or system fault.
762 Transmission oil temperature sensor
763 electromagnet of the trench digging regime
764 Transmission light
765 Pressure sensor in the piston cavity of the hydraulic ram
766 Pressure sensor in the lubrication system of the differential (bridge)
767 Oil pressure switch for variable displacement pump in the hydraulic circuit of the working equipment
768 Communication channel RS-485
769 Pressure sensor for the cylinder of the lifting cylinder
770 Caterpillar Data Link 2
771 Relays of blinds
772 Block for regulating the composition of the combustible mixture for elimination of detonation
773 Lift control lever switch
774 Accelerator Pedal Position Sensor
775 The relay of inclusion of heating of a water distributor
776 Navigation system control unit
777 Steering angle sensor for steering assist steering
778 Auxiliary air pressure sensor
779 temperature sensor in the cockpit
780 Stand-alone start switch relay
781 Lighting relays
782 Engine stop indicator light by external switch (ground level)
783 Speed stabilization indicator light
784 Engine Vibration Sensor
785 temperature sensor cooling liquid in the engine cooling circuit
786 Coolant pressure sensor. In the engine cooling circuit
787 Coolant level sensor. In the engine cooling radiator
788 Engine retarder mode switch
789 Main control circuit pressure sensor
790 Outlet pressure sensor for the platform swing drive pump
791 electromagnet of the brakes set by Jake Brake in a weak / strong braking state
792 electromagnet brake setpoint firm Jake Brake in the state of medium / strong braking
793 Main Steering System Hydraulic Pump Pressure Sensor Contact
794 Hydraulic auxiliary steering pressure sensor connector
795 Intermediate auxiliary steering relay
796 electromagnet high-speed fan cooling differential (bridge)
798 Common alarm output
799 Service tool
800 The main unit of the basic information processing system (VIMS)
801 Coordination unit (interface unit) 1 of the basic information processing system (VIMS)
802 Coordination unit 2 of the VIMS system
803 Coordination unit 3 of the VIMS system
804 VIMS
805 Coordination unit 5 of the VIMS system
806 VIMS Coordination Unit 6
807 VIMS Coordination Unit 7
808 Coordination unit 8 of the VIMS system
809 Speedometer / Tachometer 1
810 Speedometer / Tachometer 2
811 Instrument panel 1
812 Instrument panel 2
813 Instrument panel 3
814 Instrument panel 4
815 Message Center 1
816 Message Center 2
817 Internal backup battery of the electronic control unit (ECM)
818 Power Mode Switch
819 Data link for display
820 Data link from the keyboard
821 Display Power Circuit
822 Liquid crystal display backlight (LCD)
823 Service maintenance indicator light
824 Indicator 1 (green) of the truck’s payload measurement system (TPMS)
825 Indicator light 2 (red) of the payload measurement system (TPMS)
826 converter oil temperature sensor
827 left-hand exhaust manifold temperature sensor
828 right-side exhaust gas temperature sensor
829 temperature sensor for cooling fluid in the rear section of the charge air cooler
830 front brake oil temperature sensor
831 Metal Particle Indicator in the Left Final Transfer
832 Metal Particle Indicator in Right Final Destination
833 temperature sensor for rear brake oil
834 Indicator of metal particles in the differential (bridge)
835 differential oil temperature sensor (bridge)
836 left end oil temperature sensor
837 right end final oil temperature sensor
838 Left Front Suspension Hose Pressure Sensor
839 Right front hydraulic cylinder pressure sensor
840 Pressure sensor for left rear suspension hydraulic cylinder
841 Right Rear Cylindrical Pressure Sensor
842 Metal front left working equipment indicator
843 Right front working equipment metal particle indicator
844 Metal Particle Indicator in Left Rotary Pump Motor
845 Metal particles indicator in the left hydraulic motor of the platform swing mechanism
846 Indicator of metal particles in the right hydraulic motor of the platform swing mechanism
847 Indicator of metal particles of the left rear working tool
848 Indicator of metal particles of the right rear working tool
849 Air pressure sensor in pneumatic system
850 Indicator of metal particles in the reducer
851 Gearbox pressure sensor
852 brake oil temperature sensor (right front)
853 brake oil temperature sensor (left front)
854 brake oil temperature sensor (right rear)
855 brake oil temperature sensor (left rear)
856 Incl. Sensor unit 1
857 Inclination sensor 2
858 Circuit breaker protection circuit breaker
859 Generator Power Relay
860 Pump drive oil temperature sensor
861 Service maintenance indicator light
862 Transmission pressure sensor P1
863 Transmission pressure sensor P2
864 Oil pressure switch for variable displacement pump hydraulic system of working equipment
865 Engine Exhaust Temperature Indicator
866 Output signal proportional to load
Electromagnet of engine retarder
868 Automatic transmission change mode indicator light
869 Right-hand ram hydraulic rod extension
870 Left Rod Extension Rod Extension Sensor
871 Tilt sensor
872 Step-ratio sensor
873 Oil pump pressure sensor for contour skew
874 Blade control switch
875 Manual blade control switch
876 Quick start switch
877 Blade return sensor
878 Blade load selector switch
879 Ripper attack angle sensor
880 Ripper position sensor (raised / lowered)
881 Ripper automatic lift switch
882 electromagnet of working equipment locking
883 quick discharge electromagnet
884 Stepper electromagnet
885 RV valve solenoid electromagnet
886 electromagnet of ripper penetration
887 ripper extractor electromagnet
888 ripper lowering solenoid
889 ripper lifting electromagnet
890 Telemetric data transmission channel
900 Left lifting electromagnet
901 Left lowering solenoid
902 Right lifting magnet
903 Right-hand lowering solenoid
904 Rear Electromagnet Lift
905 Rear electromagnet lowering
906 Left slope sensor
907 Right slope sensor
908 Blade angle sensor
909 Display 1 slope steepness
910 Display 2 slope gradients
911 Display 3 slope gradients
912 Display 4 slope steepness
913 Display 5 slope steepness
914 Display 6 slope steepness
915 Indicators of direction of inclination from the left sensor
916 Indicator light for a given slope from the left slope sensor
917 Inclination direction indicator lamps from the right sensor
918 Indicator light for a given slope from the right tilt sensor
919 Inclination slope mismatch signal from the left
920 Slope steepness inconsistency sound signal to the right
921 Inclination slope
922 Automatic close stop sensor
923 Proximity to the reference height sensor
924 Electronic control unit for burner operation
925 Burner operating mode indicator light
926 Burner operation mode switch
927 Burner Fuel Pump Relay
928 Relay of the glow plug of the burner of the left expander
929 Fan motor of the left expander
930 The solenoid valve of the fuel valve of the left expander
931 Hand-operated torch switch for left expander
932 Left main spark plug relay
933 Motor left main fan
934 Left main fuel valve
935 Hand switch left main burner
936 The pilot spark plug of the right expander
937 Right Expander Fan Motor
938 Right Expander Fuel Valve
939 Right-hand burner manual switch
940 Relay of the right main glow plug
941 Motor of the right main fan
942 Right main fuel valve
943 Main right burner automatic switch
944 Feed speed switch
945 Transporter mode selector switch
946 Electromagnet for regulating the speed of the conveyor
Electromagnet of increased transmission
948 Gear Shift Switch
949 electromagnet for controlling the power of the running hydraulic motor
950 Dial Speed Sensor
951 Rotor Clutch Oil Pressure Sensor
952 Rotor depth switch
953 Switch for manual control of the depth of the rotor
954 Rotor lifting lock switch
955 Rotor penetration sensor
956 electromagnet for lifting the rotor
957 rotor lowering solenoid
958 Rotor rotation gear switch
959 Rotor speed sensor
960 electromagnet of 1st rotor transfer coupling
961 electromagnet of clutch of 2nd rotor transmission
962 electromagnet of 3rd rotor transmission coupling
963 Slope control unit
964 Dual power mode selection signal output
965 Automatic digging switch
966 Traction Control System Indicator Light (TCS)
967 Machine Application Terms
968 Transmission Lock Indicator Lamp
969 front axle differential lock solenoid
970 electromagnet for locking the differential of the central / rear axle
971 electromagnet of interlocking differential lock
972 Left screw auger operation switch
973 Left-hand conveyor operation switch
974 Left side feed mode selector switch
975 Rotary switch of speeds of the left conveyor
976 Blade material height sensor in the left screw
977 Ultrasonic material height sensor in the left auger
978 Rotary regulator of material height in the left auger
979 electromagnet of the left pump of the material control system
980 Bypass electromagnet of the left transporter
981 backward electromagnet of the left auger
982 Bypass electromagnet of the left auger
983 Left auger rotation sensor
984 Material flow control system diagnostic light
985 Feeder control unit for asphalt paver
986 Right screw auger operation switch
987 Right-hand transport mode switch
988 Right side feed mode switch
989 Right-hand conveyor speed selector
990 Blade material height sensor in the right auger
991 Ultrasonic material height sensor in the right auger
992 Rotary height adjuster in the right auger
993 electromagnet of the right pump of the material control system
994 Right-hand drive bypass solenoid
995 electromagnet of the backstroke of the right auger
996 Bypass electromagnet of right auger
997 Right screw auger
998 electromagnet of the traction control system
999 Maximum speed control
1011 solenoid of low speed of the cooling fan of the differential (bridge)
Electromagnet of the front brake
1013 Proportional front brake solenoid
1014 electromagnet of oil supply to the front brake
Electromagnet of rear brake
1016 Proportional electromagnet of rear brake
1017 electromagnet of oil supply to the rear brake
1018 Steering angle resolver sensor
1019 Auxiliary steering angle resolver
1020 Front Brake Coolant Filter Sensor
1021 Rear brake cooling system filter sensor
1022 Grease level sensor in the automatic lubrication system tank
1023 Hydraulic system pressure manometer
1024 Right-hand pump pressure sender
1025 Left Hand Pump Pressure Sensor
1026 The filter of the filter of a return flow of oil from system of a steering in a hydro tank
1027 Power supply unit 5
1028 Power supply unit 1
1029 Power Supply Unit 2
1030 Power supply 3
1031 Power supply of radio devices 14 V DC
1032 Main power supply 14 V DC
1033 Power supply of the keyboard 5 V DC
1034 Manual blade unloading switch
1035 Receiver of satellite navigation system (GPS)
1036 Function keys
1037 Display unit
1038 Analog signal output circuit for speed controller adjustment
1039 Circuit of the output pulse width adjustment signal of the speed controller
1040 Combustion Control Module for Combustible Combustion (ICSM) 1
1041 Combustion Combustion Control Engine (ICSM) 2
1042 Integrated Temperature Control Module (ITSM)
1043 Combustion ignition signal in cylinder 1
1044 Combustion ignition signal in all cylinders
1045 power transmission oil temperature sensor
1046 Oil Pressure Filter Clogging Sensor
1047 swash electromagnet by one hydraulic cylinder
1048 Output signal 1 from the control source
1049 Output signal 2 from the control source
1050 Power supply unit 4
1051 Auxiliary power supply 14 V DC
1052 Bulb Light Assembly
1053 Drainage oil temperature sensor for the left oil pump of the hydraulic system
1054 temperature sensor drainage oil of the central oil pump hydraulic system
1055 Drainage oil temperature sensor for the right oil pump of the hydraulic system
1057 Transmission / Gearbox Control Module
1058 electromagnet of the floating position of the lifting mechanism
1059 Contact pressure sensor for the control loop of the hydraulic system for lifting the working equipment
1060 The contact pressure sensor of the pilot circuit of the hydraulic system of lowering the working equipment
1061 Bucket return control circuit pressure sensor
1062 Contact pressure sensor for the pilot circuit of the hydraulic system for bucket unloading
1063 Automatic digging switch
1064 Indication light for automatic digging
1065 Remote control unit for the machine
1066 Auto digging indicator light
1067 Automatic digging sound signal
1068 Automatic digging machine button
1069 Lifting signal of the working tool
1070 Lowering of the working tool
1071 Bucket return signal
1072 Bucket discharge signal
1073 Main Information Display System Display (VIDS)
1074 solenoid valve oil regeneration
1075 solenoid valve oil filling
1076 Knock sensor A
1077 Knock Sensor B
1078 Detonation sensor C
1079 Knock Sensor D
1080 Knock sensor E
1081 Detonation sensor F
1082 Detonation sensor G
1083 Knock sensor H
1084 Knock Sensor I
1085 Knock sensor J
1086 Oxygen sensor sensor
1087 Oxygen Concentration Sensor Buffer Block
1088 Oxygen sensor power supply circuit
1089 Data analysis unit
1101 Combustion sensor in the cylinder 1
1102 Combustion sensor in the cylinder 2
1103 Combustion sensor in the cylinder 3
1104 Combustion sensor in the cylinder 4
1105 Combustion sensor in the cylinder 5
1106 Combustion sensor in the cylinder 6
1107 Combustion sensor in the cylinder 7
1108 Combustion sensor in the cylinder 8
1109 Combustion sensor in the cylinder 9
1110 Combustion sensor in the cylinder 10
1111 Combustion sensor in the cylinder 11
1112 Combustion sensor in the cylinder 12
1113 Combustion sensor in the cylinder 13
1114 Combustion sensor in the cylinder 14
1115 Combustion sensor in the cylinder 15
1116 Combustion sensor in the cylinder 16
Electromagnet of the separator
1118 solenoid of the flow diversion in the neutral circuit
Electromagnet of boom lock
1120 arm lock solenoid
1121 electromagnet of high pressure front system
1122 electromagnet of high pressure rear system
1123 electromagnet adjusting the frequency of hammer blows
1124 electromagnet of anti-theft system
1125 Front / rear left lever sensor
1126 Left / right left lever position sensor
1127 Front / rear right-hand lever sensor
1128 Right / left lever sensor
1129 Direction switch pedal position sensor
1130 Pedal position switch pedal position sensor
1131 Pushbutton switch 1 of the joystick
1132 Pushbutton switch 4 Joystick
1133 Pressure sensor (load-dependent) front main oil pump
1134 Pressure sensor (load-dependent) rear main oil pump
1135 Outlet pressure sender for front oil pump
1136 Outlet pressure sender for rear oil pump
1137 Drain pressure sensor from oil pan pump oil pump
1138 Boom Hydraulic Cylinder Retraction Electrode
1139 handle hydraulic cylinder extension electromagnet
1140 arm rod hydraulic pulling solenoid
1141 bucket hydraulic cylinder extension electromagnet
1142 bucket cylinder buckler electromagnet
1143 electromagnet of the mechanism of turning to the right
Electromagnet of the mechanism of turning to the left
1145 electromagnet for clockwise extension of the implement
1146 electromagnet of retracting / turning counterclockwise of the implement
1147 medium pressure electromagnet 1-A
1148 medium pressure electromagnet 1-V
1149 solenoid of return / modulating valve for lowering the boom
1150 electromagnet changing the angle of the inclined washer of the oil pump hydraulic turning contour
1151 Switching pressure sensor under load of the front pump
1152 Switching pressure sensor under load of the rear pump
1153 Front Pump Pressure Sensor
1154 Rear Pressure Pump Pressure Sensor
1155 electromagnet of the front pump supply pressure switch under load
1156 electromagnet of rear pump providing pressure switch under load
1157 front pump pressure solenoid
1158 electromagnet of pressure reserve of rear pump
1159 arm lower / lower arm solenoid
1160 Hydraulic solenoid electromagnet
1161 Front Hydraulic Pump Pressure Sensor
1162 Rear hydraulic pump pressure sensor
1163 Left-hand electromagnet of motion
1164 Right-hand electromagnet of movement backwards
1165 Right-hand electromagnet of motion forward
1166 Left front electromagnet
1167 Automatic Generator Power Generator (EPG)
1168 The sensor of a de-energized bus
1169 Sensor ATB (transformer block AC)
1170 BTB sensor (transformer busbar)
1171 Variable speed pump switch for the hydraulic circuit of the work equipment
1172 Pump variable speed pump for the hydraulic circuit of the work equipment
1173 Lifting damper magnet
1174 Lift switch
1175 Body position sensor
1176 Engine output signal output
1177 Sensor for fuel level transducer
1178 The pressure sensor of the machine overload warning system
1179 ES2000 translator module
1180 electromagnet 1 of auxiliary hydraulic system
1181 electromagnet 2 of auxiliary hydraulic system
1182 electromagnet 1 of high throughput
1183 electromagnet 2 of high throughput
1184 Power supply of solenoid valves of auxiliary hydraulic system
1185 Supply of high-throughput solenoid valves
1186 Increased Flow Mode Switch
1187 Flow Continuity Sensor
1188 Manual override switch
1189 Auxiliary Hydraulic System Lever
1190 Armrest / seat adjustment buttons
1191 The main valve of a drive of the mechanism of turn
1192 Main working equipment valve
1193 boom hydraulic boom extension electromagnet
1194 The main unit of the machine information display system (MIDS)
1195 Hydraulic Filter Filter Contact Sensor
1196 Contact filter sensor of the filter of the fan
1197 blade heaving solenoid
1198 blade heave electromagnet
1199 Main Information Display Unit (VIDS)
1200 Additional filtering system
1201 Thermocouple 1
1202 Thermocouple №2
1203 Thermocouple №3
1204 Thermocouple №4
1205 Thermocouple №5
1206 Thermocouple №6
1207 Thermocouple №7
1208 Thermocouple №8
1209 Thermocouple №9
1210 Thermocouple №10
1211 Thermocouple №11
1212 Thermocouple №12
1213 Thermocouple # 13
1214 Thermocouple # 14
1215 Thermocouple №15
1216 Thermocouple 16
1217 Thermocouple №17
1218 Thermocouple №18
1219 Thermocouple № 19
1220 Thermocouple №20
1221 Thermocouple №21
1222 Thermocouple # 22
1223 Thermocouple №23
1224 Thermocouple №24
1225 Left Rear Parking Brake Pressure Sensor
1226 Right Rear Parking Brake Pressure Sensor
1227 Retarder lever
1228 Contact switch for auxiliary hydraulic system
1229 Brake Coolant Pump Speed Sensor
1230 electromagnet of a drive of the pump of system of cooling of brakes
1231 Brake circuit by-pass solenoid
1232 Rear differential oil bypass solenoid
1233 Sensor No. 1 of the gearbox interlock pressure
1234 Sensor No. 2 of the gearbox interlock pressure
1235 electromagnet of a blocking of a transmission
1236 Raised body position indicator light
1237 The bypass electromagnet No. 1 of the lifting gear pump
1238 The bypass electromagnet No. 2 of the lifting gear pump
1239 electromagnet of the main tank-hydraulic distributor of the piston circuit of the lifting mechanism
1240 electromagnet of the main tank tank-hydraulic distributor of the rod loop of the lifting mechanism
1241 electromagnet of the main line pump-hydraulic distributor of the piston circuit of the lifting mechanism
1242 Mains electromagnet Pump-Hydraulic distributor of the lifting rod chain
1243 electromagnet of the control circuit of the lifting mechanism
1244 The safety solenoid of the second gear stage
1245 Hydraulic accumulator pressure release switch
1246 The pressure sensor of the piston chamber of the hydraulic cylinder of the lifting mechanism
1247 The pressure sensor of the rod chamber of the hydraulic cylinder of the lifting mechanism
Electromagnet of moderator
1249 Accelerator pedal position sensor
1266 Diagnostic mode indicator light
1267 Low heat indicator light.
1268 Service maintenance indicator light
1269 Operator brake pressure switch
1270 temperature sensor at the inlet of the turbocharger
1271 Differential pressure sensor (bevel gear)
1272 Brake accumulator pressure switch contact
1273 Chassis control unit
1274 Signal of machine operation
1275 bucket lifting electromagnet
1276 bucket lowering solenoid
1277 apron lifting solenoid
1278 apron lowering solenoid
1279 Ejector movement solenoid forward
1280 electromagnet of ejector movement backwards
1281 Bucket lever position sensor
1282 Sensor for lever position apron
1283 Ejector lever position sensor
1284 Elevator speed limiter position sensor
1285 electromagnet of screw movement forward
1286 electromagnet of screw movement back
1287 elevator speed control electromagnet
1288 Clutch Relay
1289 Coupling damper relay
1290 Float switch for apron
1291 Hitch switch
1292 Contact lock sensor
1293 Clutch damper switch
1294 Ejector return light
1295 Floating Position Indicator Flap Indicator
1296 Indicator light in tractor mode
1297 Indicator light in the scraper mode
1299 electromagnet of elevator activation
1300 electromagnet changing the direction of movement of the elevator
1301 solenoid valve of the gas supply (GAV) into the cylinder number 1
1302 solenoid valve of the gas supply (GAV) in the cylinder number 2
1303 solenoid valve of the gas supply (GAV) in the cylinder number 3
1304 solenoid valve of the gas supply (GAV) into the cylinder No.4
1305 solenoid valve of the gas supply (GAV) into cylinder No.5
1306 solenoid valve of the gas supply (GAV) in the cylinder number 6
1307 solenoid valve of the gas supply (GAV) in the cylinder number 7
1308 solenoid valve of the gas supply (GAV) in the cylinder number 8
1309 solenoid valve of the gas supply (GAV) in the cylinder number 9
13010 solenoid valve of the gas supply (GAV) into cylinder No.10
1311 solenoid valve of the gas supply (GAV) in the cylinder № 11
1312 solenoid valve of the gas supply (GAV) into the cylinder No. 12
1313 solenoid valve of the gas supply (GAV) in the cylinder number 13
1314 solenoid valve of the gas supply (GAV) in the cylinder number 14
1315 solenoid valve of the gas supply (GAV) in the cylinder number 15
1316 solenoid valve of the gas supply (GAV) in the cylinder number 16
1317 solenoid valve of the gas supply (GAV) in the cylinder number 17
1318 solenoid valve of the gas supply (GAV) into the cylinder No. 18
1319 solenoid valve of the gas supply (GAV) in the cylinder number 19
1320 solenoid valve of the gas supply (GAV) in the cylinder number 20
1321 Screw stop limit sensor
1322 Screw return switch
1323 auger of screw stopper screw
1326 Location code of the electronic control unit (ECM)
1327. The left brake pedal position sensor
1328 Right brake pedal position sensor
1329 The contact sensor of the left brake pedal
1330 Right brake pedal sensor connector
1401 Gearbox solenoid №1
1402 transmission electromagnet # 2
1403 Gearbox electromagnet # 3
1404 electromagnet of gearbox №4
1405 electromagnet of a transmission №5
1406 electromagnet of gearbox №6
1407 transmission electromagnet # 7
1408 Transmission Electromagnet No. 8
1409 Gearbox electromagnet # 9
1410 electromagnet of a transmission №10
1411 electromagnet of a transmission №11
1412 electromagnet of a transmission №12
1413 electromagnet of gearbox №13
1414 electromagnet of gearbox №14
1415 electromagnet of gearbox №15
1416 Gearbox solenoid
1417 electromagnet of gearbox №17
1418 Gearbox solenoid №18
1419 electromagnet of gearbox №19
1420 electromagnet of gearbox №20
