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OBD2 Fault Codes
OBD2 Fault Codes (U1000 - U2500)

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Code Description
U1000SCP (J1850) Invalid or Missing Data for Primary Id
U1001SCP (J1850) Invalid or Missing Data for Primary Id
U1002SCP (J1850) Invalid or Missing Data for Primary Id
U1003SCP (J1850) Invalid or Missing Data for Primary Id
U1004SCP (J1850) Invalid or Missing Data for EEC Programming
U1005SCP (J1850) Invalid or Missing Data for EEC Programming
U1006SCP (J1850) Invalid or Missing Data for Primary Id
U1007SCP (J1850) Invalid or Missing Data for Primary Id
U1008SCP (J1850) Invalid or Missing Data for Engine Torque
U1009SCP (J1850) Invalid or Missing Data for Engine Torque
U1010SCP (J1850) Invalid or Missing Data for Engine Air Intake
U1011SCP (J1850) Invalid or Missing Data for Engine Air Intake
U1012SCP (J1850) Invalid or Missing Data for Primary Id
U1013SCP (J1850) Invalid or Missing Data for Primary Id
U1014SCP (J1850) Invalid or Missing Data for Primary Id
U1015SCP (J1850) Invalid or Missing Data for Primary Id
U1016SCP (J1850) Invalid or Missing Data for Primary Id
U1017SCP (J1850) Invalid or Missing Data for Primary Id
U1018SCP (J1850) Invalid or Missing Data for Throttle
U1019SCP (J1850) Invalid or Missing Data for Throttle
U1020SCP (J1850) Invalid or Missing Data for Air Conditioning Clutch
U1021SCP (J1850) Invalid or Missing Data for Air Conditioning Clutch
U1022SCP (J1850) Invalid or Missing Data for Primary Id
U1023SCP (J1850) Invalid or Missing Data for Primary Id
U1024SCP (J1850) Invalid or Missing Data for Primary Id
U1025SCP (J1850) Invalid or Missing Data for Primary Id
U1026SCP (J1850) Invalid or Missing Data for Engine RPM
U1027SCP (J1850) Invalid or Missing Data for Engine RPM
U1028SCP (J1850) Invalid or Missing Data for Primary Id
U1029SCP (J1850) Invalid or Missing Data for Primary Id
U1030SCP (J1850) Invalid or Missing Data for Experimental #1
U1031SCP (J1850) Invalid or Missing Data for Experimental #1
U1032SCP (J1850) Invalid or Missing Data for Primary Id
U1033SCP (J1850) Invalid or Missing Data for Primary Id
U1034SCP (J1850) Invalid or Missing Data for Primary Id
U1035SCP (J1850) Invalid or Missing Data for Primary Id
U1036SCP (J1850) Invalid or Missing Data for Wheels
U1037SCP (J1850) Invalid or Missing Data for Wheels
U1038SCP (J1850) Invalid or Missing Data for Primary Id
U1039SCP (J1850) Invalid or Missing Data for Primary Id / Vehicle Speed
U1040SCP (J1850) Invalid or Missing Data for Vehicle Speed
U1041SCP (J1850) Invalid or Missing Data for Vehicle Speed
U1042SCP (J1850) Invalid or Missing Data for Traction Control
U1043SCP (J1850) Invalid or Missing Data for Traction Control
U1044SCP (J1850) Invalid or Missing Data for Traction Motor
U1045SCP (J1850) Invalid or Missing Data for Traction Motor
U1046SCP (J1850) Invalid or Missing Data for Primary Id
U1047SCP (J1850) Invalid or Missing Data for Primary Id
U1048SCP (J1850) Invalid or Missing Data for Primary Id
U1049SCP (J1850) Invalid or Missing Data for Primary Id
U1050SCP (J1850) Invalid or Missing Data for Brakes
U1051SCP (J1850) Invalid or Missing Data for Brakes
U1052SCP (J1850) Invalid or Missing Data for Steering / Steering Wheel
U1053SCP (J1850) Invalid or Missing Data for Steering / Steering Wheel
U1054SCP (J1850) Invalid or Missing Data for Primary Id
U1055SCP (J1850) Invalid or Missing Data for Primary Id
U1056SCP (J1850) Invalid or Missing Data for Vehicle Configuration
U1057SCP (J1850) Invalid or Missing Data for Vehicle Configuration
U1058SCP (J1850) Invalid or Missing Data for Transmission / Transaxle / PRNDL
U1059SCP (J1850) Invalid or Missing Data for Transmission / Transaxle / PRNDL
U1060SCP (J1850) Invalid or Missing Data for Primary Id
U1061SCP (J1850) Invalid or Missing Data for Primary Id
U1062SCP (J1850) Invalid or Missing Data for Primary Id
U1063SCP (J1850) Invalid or Missing Data for Primary Id
U1064SCP (J1850) Invalid or Missing Data for Primary Id
U1065SCP (J1850) Invalid or Missing Data for Primary Id
U1066SCP (J1850) Invalid or Missing Data for Primary Id
U1067SCP (J1850) Invalid or Missing Data for Primary Id
U1068SCP (J1850) Invalid or Missing Data for Primary Id
U1069SCP (J1850) Invalid or Missing Data for Primary Id
U1070SCP (J1850) Invalid or Missing Data for Engine Sensors
U1071SCP (J1850) Invalid or Missing Data for Engine Sensors
U1072SCP (J1850) Invalid or Missing Data for Engine Coolant
U1073SCP (J1850) Invalid or Missing Data for Engine Coolant
U1074SCP (J1850) Invalid or Missing Data for Engine Oil
U1075SCP (J1850) Invalid or Missing Data for Engine Oil Temp
U1076SCP (J1850) Invalid or Missing Data for Primary Id
U1077SCP (J1850) Invalid or Missing Data for Primary Id
U1078SCP (J1850) Invalid or Missing Data for Primary Id
U1079SCP (J1850) Invalid or Missing Data for Primary Id
U1080SCP (J1850) Invalid or Missing Data for Primary Id
U1081SCP (J1850) Invalid or Missing Data for Primary Id
U1082SCP (J1850) Invalid or Missing Data for Engine Systems Other
U1083SCP (J1850) Invalid or Missing Data for Engine Systems Other
U1084SCP (J1850) Invalid or Missing Data for Powertrain Status Request
U1085SCP (J1850) Invalid or Missing Data for Powertrain Status Request
U1086SCP (J1850) Invalid or Missing Data for Primary Id
U1087SCP (J1850) Invalid or Missing Data for Primary Id
U1088SCP (J1850) Invalid or Missing Data for Suspension
U1089SCP (J1850) Invalid or Missing Data for Suspension
U1090SCP (J1850) Invalid or Missing Data for Non-Legislated Diagnostics
U1091SCP (J1850) Invalid or Missing Data for Non-Legislated Diagnostics
U1092SCP (J1850) Invalid or Missing Data for Primary Id
U1093SCP (J1850) Invalid or Missing Data for Primary Id
U1094SCP (J1850) Invalid or Missing Data for Experimental #2
U1095SCP (J1850) Invalid or Missing Data for Experimental #2
U1096SCP (J1850) Invalid or Missing Data for Primary Id
U1097SCP (J1850) Invalid or Missing Data for Primary Id
U1098SCP (J1850) Invalid or Missing Data for Vehicle Speed Control
U1099SCP (J1850) Invalid or Missing Data for Vehicle Speed Control
U1100SCP (J1850) Invalid or Missing Data for Primary Id
U1101SCP (J1850) Invalid or Missing Data for Primary Id
U1102SCP (J1850) Invalid or Missing Data for Primary Id
U1103SCP (J1850) Invalid or Missing Data for Primary Id
U1104SCP (J1850) Invalid or Missing Data for Chassis Status Request
U1105SCP (J1850) Invalid or Missing Data for Chassis Status Request
U1106SCP (J1850) Invalid or Missing Data for Legislated Diagnostics
U1107SCP (J1850) Invalid or Missing Data for Legislated Diagnostics
U1108SCP (J1850) Invalid or Missing Data for Electric Traction Drive (Inverter)
U1109SCP (J1850) Invalid or Missing Data for Electric Traction Drive (Inverter)
U1110SCP (J1850) Invalid or Missing Data for Primary Id
U1111SCP (J1850) Invalid or Missing Data for Primary Id
U1112SCP (J1850) Invalid or Missing Data for Primary Id
U1113SCP (J1850) Invalid or Missing Data for Primary Id
U1114SCP (J1850) Invalid or Missing Data for Charging System
U1115SCP (J1850) Invalid or Missing Data for Charging System
U1116SCP (J1850) Invalid or Missing Data for Electrical Energy Management
U1117SCP (J1850) Invalid or Missing Data for Electrical Energy Management
U1118SCP (J1850) Invalid or Missing Data for Primary Id
U1119SCP (J1850) Invalid or Missing Data for Primary Id
U1120SCP (J1850) Invalid or Missing Data for Primary Id
U1121SCP (J1850) Invalid or Missing Data for Primary Id
U1122SCP (J1850) Invalid or Missing Data for Odometer
U1123SCP (J1850) Invalid or Missing Data for Odometer
U1124SCP (J1850) Invalid or Missing Data for Primary Id
U1125SCP (J1850) Invalid or Missing Data for Primary Id
U1126SCP (J1850) Invalid or Missing Data for Primary Id
U1127SCP (J1850) Invalid or Missing Data for Primary Id
U1128SCP (J1850) Invalid or Missing Data for Primary Id
U1129SCP (J1850) Invalid or Missing Data for Primary Id
U1130SCP (J1850) Invalid or Missing Data for Fuel System
U1131SCP (J1850) Invalid or Missing Data for Fuel System
U1132SCP (J1850) Invalid or Missing Data for Vehicle Motion
U1133SCP (J1850) Invalid or Missing Data for Vehicle Motion
U1134SCP (J1850) Invalid or Missing Data for Ignition Switch / Starter
U1135SCP (J1850) Invalid or Missing Data for Ignition Switch / Starter
U1136SCP (J1850) Invalid or Missing Data for Telltales
U1137SCP (J1850) Invalid or Missing Data for Telltales
U1138SCP (J1850) Invalid or Missing Data for Primary Id
U1139SCP (J1850) Invalid or Missing Data for Primary Id
U1140SCP (J1850) Invalid or Missing Data for Gateway
U1141SCP (J1850) Invalid or Missing Data for Gateway
U1142SCP (J1850) Invalid or Missing Data for Primary Id
U1143SCP (J1850) Invalid or Missing Data for Primary Id
U1144SCP (J1850) Invalid or Missing Data for Primary Id
U1145SCP (J1850) Invalid or Missing Data for Primary Id
U1146SCP (J1850) Invalid or Missing Data for Vehicle Security
U1147SCP (J1850) Invalid or Missing Data for Vehicle Security
U1148SCP (J1850) Invalid or Missing Data for Audio Control
U1149SCP (J1850) Invalid or Missing Data for Audio Control
U1150SCP (J1850) Invalid or Missing Data for Audible Warnings
U1151SCP (J1850) Invalid or Missing Data for Audible Warnings
U1152SCP (J1850) Invalid or Missing Data for Experimental #3
U1153SCP (J1850) Invalid or Missing Data for Experimental #3
U1154SCP (J1850) Invalid or Missing Data for Compact Disc
U1155SCP (J1850) Invalid or Missing Data for Compact Disc
U1156SCP (J1850) Invalid or Missing Data for Digital Signal Processing
U1157SCP (J1850) Invalid or Missing Data for Digital Signal Processing
U1158SCP (J1850) Invalid or Missing Data for Antenna
U1159SCP (J1850) Invalid or Missing Data for Antenna
U1160SCP (J1850) Invalid or Missing Data for Primary Id
U1161SCP (J1850) Invalid or Missing Data for Primary Id
U1162SCP (J1850) Invalid or Missing Data for Digital Audio Tape
U1163SCP (J1850) Invalid or Missing Data for Digital Audio Tape
U1164SCP (J1850) Invalid or Missing Data for Tuner / Receiver
U1165SCP (J1850) Invalid or Missing Data for Tuner / Receiver
U1166SCP (J1850) Invalid or Missing Data for Cassette Tape
U1167SCP (J1850) Invalid or Missing Data for Cassette Tape
U1168SCP (J1850) Invalid or Missing Data for Primary Id
U1169SCP (J1850) Invalid or Missing Data for Primary Id
U1170SCP (J1850) Invalid or Missing Data for Cellular Phone / Paging System
U1171SCP (J1850) Invalid or Missing Data for Cellular Phone / Paging System
U1172SCP (J1850) Invalid or Missing Data for Remote Button Control
U1173SCP (J1850) Invalid or Missing Data for Remote Button Control
U1174SCP (J1850) Invalid or Missing Data for Primary Id
U1175SCP (J1850) Invalid or Missing Data for Primary Id
U1176SCP (J1850) Invalid or Missing Data for Primary Id
U1177SCP (J1850) Invalid or Missing Data for Primary Id
U1178SCP (J1850) Invalid or Missing Data for Climate Control (HVAC)
U1179SCP (J1850) Invalid or Missing Data for Climate Control (HVAC)
U1180SCP (J1850) Invalid or Missing Data for Personalization (Memory) Features
U1181SCP (J1850) Invalid or Missing Data for Personalization (Memory) Features
U1182SCP (J1850) Invalid or Missing Data for Primary Id
U1183SCP (J1850) Invalid or Missing Data for Primary Id
U1184SCP (J1850) Invalid or Missing Data for Window Wiper / Washer
U1185SCP (J1850) Invalid or Missing Data for Window Wiper / Washer
U1186SCP (J1850) Invalid or Missing Data for Primary Id
U1187SCP (J1850) Invalid or Missing Data for Primary Id
U1188SCP (J1850) Invalid or Missing Data for Primary Id
U1189SCP (J1850) Invalid or Missing Data for Primary Id
U1190SCP (J1850) Invalid or Missing Data for Primary Id
U1191SCP (J1850) Invalid or Missing Data for Primary Id
U1192SCP (J1850) Invalid or Missing Data for Primary Id
U1193SCP (J1850) Invalid or Missing Data for Primary Id
U1194SCP (J1850) Invalid or Missing Data for Mirrors
U1195SCP (J1850) Invalid or Missing Data for Mirrors
U1196SCP (J1850) Invalid or Missing Data for Door Locks
U1197SCP (J1850) Invalid or Missing Data for Door Locks
U1198SCP (J1850) Invalid or Missing Data for External Access (Doors)
U1199SCP (J1850) Invalid or Missing Data for External Access (Doors)
U1200SCP (J1850) Invalid or Missing Data for Seat Motion / Control
U1201SCP (J1850) Invalid or Missing Data for Seat Motion / Control
U1202SCP (J1850) Invalid or Missing Data for Windows
U1203SCP (J1850) Invalid or Missing Data for Windows
U1204SCP (J1850) Invalid or Missing Data for Steering Column
U1205SCP (J1850) Invalid or Missing Data for Steering Column
U1206SCP (J1850) Invalid or Missing Data for Primary Id
U1207SCP (J1850) Invalid or Missing Data for Primary Id
U1208SCP (J1850) Invalid or Missing Data for Seat Switches
U1209SCP (J1850) Invalid or Missing Data for Seat Switches
U1210SCP (J1850) Invalid or Missing Data for Restraints
U1211SCP (J1850) Invalid or Missing Data for Restraints
U1212SCP (J1850) Invalid or Missing Data for Primary Id
U1213SCP (J1850) Invalid or Missing Data for Primary Id
U1214SCP (J1850) Invalid or Missing Data for Primary Id
U1215SCP (J1850) Invalid or Missing Data for Primary Id
U1216SCP (J1850) Invalid or Missing Data for External Lamp Outage
U1217SCP (J1850) Invalid or Missing Data for External Lamp Outage
U1218SCP (J1850) Invalid or Missing Data for External Lamps
U1219SCP (J1850) Invalid or Missing Data for External Lamps
U1220SCP (J1850) Invalid or Missing Data for Interior Lamp Outage
U1221SCP (J1850) Invalid or Missing Data for Interior Lamp Outage
U1222SCP (J1850) Invalid or Missing Data for Interior Lamps
U1223SCP (J1850) Invalid or Missing Data for Interior Lamps
U1224SCP (J1850) Invalid or Missing Data for Primary Id
U1225SCP (J1850) Invalid or Missing Data for Primary Id
U1226SCP (J1850) Invalid or Missing Data for Body Status Request
U1227SCP (J1850) Invalid or Missing Data for Body Status Request
U1228SCP (J1850) Invalid or Missing Data for Tires
U1229SCP (J1850) Invalid or Missing Data for Tires
U1230SCP (J1850) Invalid or Missing Data for Electric Defrost
U1231SCP (J1850) Invalid or Missing Data for Electric Defrost
U1232SCP (J1850) Invalid or Missing Data for Navigation
U1233SCP (J1850) Invalid or Missing Data for Navigation
U1234SCP (J1850) Invalid or Missing Data for Displays
U1235SCP (J1850) Invalid or Missing Data for Displays
U1236SCP (J1850) Invalid or Missing Data for Memory Storage
U1237SCP (J1850) Invalid or Missing Data for Memory Storage
U1238SCP (J1850) Invalid or Missing Data for Experimental #4
U1239SCP (J1850) Invalid or Missing Data for Experimental #4
U1240SCP (J1850) Invalid or Missing Data for Primary Id
U1241SCP (J1850) Invalid or Missing Data for Primary Id
U1242SCP (J1850) Invalid or Missing Data for Exterior Environment
U1243SCP (J1850) Invalid or Missing Data for Exterior Environment
U1244SCP (J1850) Invalid or Missing Data for Interior Environment
U1245SCP (J1850) Invalid or Missing Data for Interior Environment
U1246SCP (J1850) Invalid or Missing Data for Primary Id
U1247SCP (J1850) Invalid or Missing Data for Primary Id
U1248SCP (J1850) Invalid or Missing Data for Time / Date
U1249SCP (J1850) Invalid or Missing Data for Time / Date
U1250SCP (J1850) Invalid or Missing Data for Vehicle Id (VIN)
U1251SCP (J1850) Invalid or Missing Data for Vehicle Id (VIN)
U1252SCP (J1850) Invalid or Missing Data for Class A Functions
U1253SCP (J1850) Invalid or Missing Data for Class A Functions
U1254SCP (J1850) Invalid or Missing Data for Network Control
U1255SCP (J1850) Invalid or Missing Data for Network Control
U1260SCP (J1850) Single Ended (+) Circuit Failure
U1261SCP (J1850) Single Ended (-) Circuit Failure
U1262SCP (J1850) Communication Bus Fault
U1308SCP (J1850) Invalid or Missing Data for Function Read Engine Torque
U1341SCP (J1850) Invalid or Missing Data for Function Read Vehicle Speed
U1430SCP (J1850) Invalid or Missing Data for Function Read Fuel System
U1451SCP (J1850) Invalid or Missing Data for Function Read Audible Warnings / Anti-Theft Module, Vehicle Immobilized
U1612SCP (J1850) Lack of Acknowledgment for Primary Id
U1736SCP (J1850) Lack of Acknowledgment for Telltales
U1750SCP (J1850) Lack of Acknowledgment for Audible Warnings
U1794SCP (J1850) Lack of Acknowledgment for Mirrors
U1797SCP (J1850) Lack of Acknowledgment for Door Locks
U1798SCP (J1850) Lack of Acknowledgment for External Access (Doors)
U1806SCP (J1850) Lack of Acknowledgment for Primary Id
U1900CAN Communication Bus Fault
U1950UPB Communication Bus Fault
U2000Audio Rear Control Unit is Not Responding
U2001Audio Tape Deck Unit is Not Responding
U2002Audio Bezel is Not Responding
U2003Audio Compact Disk / Disk Jockey Unit is Not Responding
U2004Audio Steering Wheel Control Unit is Not Responding
U2005Audio Rear Integrated Control Panel Unit is Not Responding
U2006Audio Remote Climate Control Unit is Not Responding
U2007Audio Navigation Unit is Not Responding
U2008Audio Phone is Not Responding
U2009Audio Front Control Module (ACM) is Not Responding
U2010Module is Not Responding (Non SCP)
U2011Module Transmitted Invalid Data (Non SCP)
U2012Communication Bus Error (Non SCP)
U2013Compass Module is not Responding
U2014Audio Subwoofer Unit is Not Responding
U2015Signal Link Fault (Non SCP)
U2016Signal Link Short to Ground (Non SCP) / From NGV Module
U2017Driver Side Crash Sensor Communication Fault (Non SCP)
U2018Passenger Side Crash Sensor Communication Fault (Non SCP)
U2019Audio Voice Module Not Responding
U2020Audio Center Amp is not responding
U2021Invalid /fault data received (Non SCP)
U2150SCP (J1850) Invalid Data from REM
U2152SCP (J1850) Invalid Data from GEM
U2160SCP (J1850) Invalid Data from IC
U2195SCP (J1850) Invalid Data from SCLM
U2500(CAN) Lack of Acknowledgement From Engine Management