OBD-II · CODE FAMILY
Codes U11xx — what they mean
U11xx is a family of 100 manufacturer-specific OBD2 codes covering network and electrical faults. Each U11xx code below links to its own page with causes, diagnosis and the parts to fix it.
100 codesNetwork systems
FAMILY
RangeU1100–U1199
Codes100
TROUBLEATLAS APP
01All codes in this family
One rich, indexed page — not thousands of empty ones. Each code links to its own page.
| Code | Meaning — click to open the code page | System | Severity |
|---|---|---|---|
| U1100 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1100/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1101 | OBD II fault code U1101 is a manufacturer specific code that → /auto/codes/u1101/ OBD II fault code U1101 is a manufacturer specific code that is defined as “SCP (J1850) Invalid or Missing Data for Primary Id”, and is set when the P | Network | Medium |
| U1102 | OBD II fault code U1102 is a manufacturer-specific trouble c → /auto/codes/u1102/ OBD II fault code U1102 is a manufacturer-specific trouble code that is defined by carmaker GM as “Loss of Serial Communications for Class 2 Devices”, | Network | Medium |
| U1103 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1103/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1104 | SCP (J1850) Invalid or Missing Data for Chassis Status Reque → /auto/codes/u1104/ SCP (J1850) Invalid or Missing Data for Chassis Status Request | Network | Medium |
| U1105 | SCP (J1850) Invalid or Missing Data for Chassis Status Reque → /auto/codes/u1105/ SCP (J1850) Invalid or Missing Data for Chassis Status Request | Network | Medium |
| U1106 | SCP (J1850) Invalid or Missing Data for Legislated Diagnosti → /auto/codes/u1106/ SCP (J1850) Invalid or Missing Data for Legislated Diagnostics | Network | Medium |
| U1107 | SCP (J1850) Invalid or Missing Data for Legislated Diagnosti → /auto/codes/u1107/ SCP (J1850) Invalid or Missing Data for Legislated Diagnostics | Network | Medium |
| U1108 | SCP (J1850) Invalid or Missing Data for Electric Traction Dr → /auto/codes/u1108/ SCP (J1850) Invalid or Missing Data for Electric Traction Drive (Inverter) | Network | Medium |
| U1109 | SCP (J1850) Invalid or Missing Data for Electric Traction Dr → /auto/codes/u1109/ SCP (J1850) Invalid or Missing Data for Electric Traction Drive (Inverter) | Network | Medium |
| U1110 | OBD II fault code U1110 is a manufacturer specific code that → /auto/codes/u1110/ OBD II fault code U1110 is a manufacturer specific code that is defined by carmaker Mitsubishi as, “A/C-ECU Timeout”, and is set when the PCM (Powertr | Network | Medium |
| U1111 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1111/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1112 | OBD II fault code U1112 is a manufacturer-specific trouble c → /auto/codes/u1112/ OBD II fault code U1112 is a manufacturer-specific trouble code that is defined by carmakers Ford and Mazda as “SCP (J1850) Invalid or Missing Data fo | Network | Medium |
| U1113 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1113/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1114 | SCP (J1850) Invalid or Missing Data for Charging System → /auto/codes/u1114/ SCP (J1850) Invalid or Missing Data for Charging System | Network | Medium |
| U1115 | SCP (J1850) Invalid or Missing Data for Charging System → /auto/codes/u1115/ SCP (J1850) Invalid or Missing Data for Charging System | Network | Medium |
| U1116 | SCP (J1850) Invalid or Missing Data for Electrical Energy Ma → /auto/codes/u1116/ SCP (J1850) Invalid or Missing Data for Electrical Energy Management | Network | Medium |
| U1117 | SCP (J1850) Invalid or Missing Data for Electrical Energy Ma → /auto/codes/u1117/ SCP (J1850) Invalid or Missing Data for Electrical Energy Management | Network | Medium |
| U1118 | OBD II fault code U1118 is a manufacturer-specific trouble c → /auto/codes/u1118/ OBD II fault code U1118 is a manufacturer-specific trouble code, which carmakers define as SCP (J1850) Invalid or Missing Data for Primary Id. As this | Network | Medium |
| U1119 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1119/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1120 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1120/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1121 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1121/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1122 | SCP (J1850) Invalid or Missing Data for Odometer → /auto/codes/u1122/ SCP (J1850) Invalid or Missing Data for Odometer | Network | Medium |
| U1123 | Audi, Nissan, and Volkswagen manufacturers define U1123 as S → /auto/codes/u1123/ Audi, Nissan, and Volkswagen manufacturers define U1123 as SCP (J1850) Invalid or missing data for Odometer. The code is triggered due to a lack of co | Network | Medium |
| U1124 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1124/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1125 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1125/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1126 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1126/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1127 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1127/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1128 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1128/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1129 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1129/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1130 | SCP (J1850) Invalid or Missing Data for Fuel System → /auto/codes/u1130/ SCP (J1850) Invalid or Missing Data for Fuel System | Network | Medium |
| U1131 | SCP (J1850) Invalid or Missing Data for Fuel System → /auto/codes/u1131/ SCP (J1850) Invalid or Missing Data for Fuel System | Network | Medium |
| U1132 | SCP (J1850) Invalid or Missing Data for Vehicle Motion → /auto/codes/u1132/ SCP (J1850) Invalid or Missing Data for Vehicle Motion | Network | Medium |
| U1133 | SCP (J1850) Invalid or Missing Data for Vehicle Motion → /auto/codes/u1133/ SCP (J1850) Invalid or Missing Data for Vehicle Motion | Network | Medium |
| U1134 | SCP (J1850) Invalid or Missing Data for Ignition Switch / St → /auto/codes/u1134/ SCP (J1850) Invalid or Missing Data for Ignition Switch / Starter | Network | Medium |
| U1135 | SCP (J1850) Invalid or Missing Data for Ignition Switch / St → /auto/codes/u1135/ SCP (J1850) Invalid or Missing Data for Ignition Switch / Starter | Network | Medium |
| U1136 | SCP (J1850) Invalid or Missing Data for Telltales → /auto/codes/u1136/ SCP (J1850) Invalid or Missing Data for Telltales | Network | Medium |
| U1137 | SCP (J1850) Invalid or Missing Data for Telltales → /auto/codes/u1137/ SCP (J1850) Invalid or Missing Data for Telltales | Network | Medium |
| U1138 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1138/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1139 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1139/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1140 | SCP (J1850) Invalid or Missing Data for Gateway → /auto/codes/u1140/ SCP (J1850) Invalid or Missing Data for Gateway | Network | Medium |
| U1141 | SCP (J1850) Invalid or Missing Data for Gateway → /auto/codes/u1141/ SCP (J1850) Invalid or Missing Data for Gateway | Network | Medium |
| U1142 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1142/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1143 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1143/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1144 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1144/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1145 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1145/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1146 | SCP (J1850) Invalid or Missing Data for Vehicle Security → /auto/codes/u1146/ SCP (J1850) Invalid or Missing Data for Vehicle Security | Network | Medium |
| U1147 | SCP (J1850) Invalid or Missing Data for Vehicle Security → /auto/codes/u1147/ SCP (J1850) Invalid or Missing Data for Vehicle Security | Network | Medium |
| U1148 | SCP (J1850) Invalid or Missing Data for Audio Control → /auto/codes/u1148/ SCP (J1850) Invalid or Missing Data for Audio Control | Network | Medium |
| U1149 | SCP (J1850) Invalid or Missing Data for Audio Control → /auto/codes/u1149/ SCP (J1850) Invalid or Missing Data for Audio Control | Network | Medium |
| U1150 | SCP (J1850) Invalid or Missing Data for Audible Warnings → /auto/codes/u1150/ SCP (J1850) Invalid or Missing Data for Audible Warnings | Network | Medium |
| U1151 | SCP (J1850) Invalid or Missing Data for Audible Warnings → /auto/codes/u1151/ SCP (J1850) Invalid or Missing Data for Audible Warnings | Network | Medium |
| U1152 | SCP (J1850) Invalid or Missing Data for Experimental #3 → /auto/codes/u1152/ SCP (J1850) Invalid or Missing Data for Experimental #3 | Network | Medium |
| U1153 | SCP (J1850) Invalid or Missing Data for Experimental #3 → /auto/codes/u1153/ SCP (J1850) Invalid or Missing Data for Experimental #3 | Network | Medium |
| U1154 | SCP (J1850) Invalid or Missing Data for Compact Disc → /auto/codes/u1154/ SCP (J1850) Invalid or Missing Data for Compact Disc | Network | Medium |
| U1155 | SCP (J1850) Invalid or Missing Data for Compact Disc → /auto/codes/u1155/ SCP (J1850) Invalid or Missing Data for Compact Disc | Network | Medium |
| U1156 | SCP (J1850) Invalid or Missing Data for Digital Signal Proce → /auto/codes/u1156/ SCP (J1850) Invalid or Missing Data for Digital Signal Processing | Network | Medium |
| U1157 | SCP (J1850) Invalid or Missing Data for Digital Signal Proce → /auto/codes/u1157/ SCP (J1850) Invalid or Missing Data for Digital Signal Processing | Network | Medium |
| U1158 | SCP (J1850) Invalid or Missing Data for Antenna → /auto/codes/u1158/ SCP (J1850) Invalid or Missing Data for Antenna | Network | Medium |
| U1159 | SCP (J1850) Invalid or Missing Data for Antenna → /auto/codes/u1159/ SCP (J1850) Invalid or Missing Data for Antenna | Network | Medium |
| U1160 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1160/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1161 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1161/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1162 | SCP (J1850) Invalid or Missing Data for Digital Audio Tape → /auto/codes/u1162/ SCP (J1850) Invalid or Missing Data for Digital Audio Tape | Network | Medium |
| U1163 | SCP (J1850) Invalid or Missing Data for Digital Audio Tape → /auto/codes/u1163/ SCP (J1850) Invalid or Missing Data for Digital Audio Tape | Network | Medium |
| U1164 | SCP (J1850) Invalid or Missing Data for Tuner / Receiver → /auto/codes/u1164/ SCP (J1850) Invalid or Missing Data for Tuner / Receiver | Network | Medium |
| U1165 | SCP (J1850) Invalid or Missing Data for Tuner / Receiver → /auto/codes/u1165/ SCP (J1850) Invalid or Missing Data for Tuner / Receiver | Network | Medium |
| U1166 | SCP (J1850) Invalid or Missing Data for Cassette Tape → /auto/codes/u1166/ SCP (J1850) Invalid or Missing Data for Cassette Tape | Network | Medium |
| U1167 | SCP (J1850) Invalid or Missing Data for Cassette Tape → /auto/codes/u1167/ SCP (J1850) Invalid or Missing Data for Cassette Tape | Network | Medium |
| U1168 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1168/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1169 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1169/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1170 | SCP (J1850) Invalid or Missing Data for Cellular Phone / Pag → /auto/codes/u1170/ SCP (J1850) Invalid or Missing Data for Cellular Phone / Paging System | Network | Medium |
| U1171 | SCP (J1850) Invalid or Missing Data for Cellular Phone / Pag → /auto/codes/u1171/ SCP (J1850) Invalid or Missing Data for Cellular Phone / Paging System | Network | Medium |
| U1172 | SCP (J1850) Invalid or Missing Data for Remote Button Contro → /auto/codes/u1172/ SCP (J1850) Invalid or Missing Data for Remote Button Control | Network | Medium |
| U1173 | SCP (J1850) Invalid or Missing Data for Remote Button Contro → /auto/codes/u1173/ SCP (J1850) Invalid or Missing Data for Remote Button Control | Network | Medium |
| U1174 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1174/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1175 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1175/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1176 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1176/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1177 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1177/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1178 | SCP (J1850) Invalid or Missing Data for Climate Control (HVA → /auto/codes/u1178/ SCP (J1850) Invalid or Missing Data for Climate Control (HVAC) | Network | Medium |
| U1179 | SCP (J1850) Invalid or Missing Data for Climate Control (HVA → /auto/codes/u1179/ SCP (J1850) Invalid or Missing Data for Climate Control (HVAC) | Network | Medium |
| U1180 | SCP (J1850) Invalid or Missing Data for Personalization (Mem → /auto/codes/u1180/ SCP (J1850) Invalid or Missing Data for Personalization (Memory) Features | Network | Medium |
| U1181 | SCP (J1850) Invalid or Missing Data for Personalization (Mem → /auto/codes/u1181/ SCP (J1850) Invalid or Missing Data for Personalization (Memory) Features | Network | Medium |
| U1182 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1182/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1183 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1183/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1184 | SCP (J1850) Invalid or Missing Data for Window Wiper / Washe → /auto/codes/u1184/ SCP (J1850) Invalid or Missing Data for Window Wiper / Washer | Network | Medium |
| U1185 | SCP (J1850) Invalid or Missing Data for Window Wiper / Washe → /auto/codes/u1185/ SCP (J1850) Invalid or Missing Data for Window Wiper / Washer | Network | Medium |
| U1186 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1186/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1187 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1187/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1188 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1188/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1189 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1189/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1190 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1190/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1191 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1191/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1192 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1192/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1193 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1193/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1194 | SCP (J1850) Invalid or Missing Data for Mirrors → /auto/codes/u1194/ SCP (J1850) Invalid or Missing Data for Mirrors | Network | Medium |
| U1195 | SCP (J1850) Invalid or Missing Data for Mirrors → /auto/codes/u1195/ SCP (J1850) Invalid or Missing Data for Mirrors | Network | Medium |
| U1196 | SCP (J1850) Invalid or Missing Data for Door Locks → /auto/codes/u1196/ SCP (J1850) Invalid or Missing Data for Door Locks | Network | Medium |
| U1197 | SCP (J1850) Invalid or Missing Data for Door Locks → /auto/codes/u1197/ SCP (J1850) Invalid or Missing Data for Door Locks | Network | Medium |
| U1198 | SCP (J1850) Invalid or Missing Data for External Access (Doo → /auto/codes/u1198/ SCP (J1850) Invalid or Missing Data for External Access (Doors) | Network | Medium |
| U1199 | SCP (J1850) Invalid or Missing Data for External Access (Doo → /auto/codes/u1199/ SCP (J1850) Invalid or Missing Data for External Access (Doors) | Network | Medium |
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