OBD-II · CODE FAMILY
Codes U12xx — what they mean
U12xx is a family of 59 manufacturer-specific OBD2 codes covering network and electrical faults. Each U12xx code below links to its own page with causes, diagnosis and the parts to fix it.
59 codesNetwork systems
FAMILY
RangeU1200–U1262
Codes59
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 |
|---|---|---|---|
| U1200 | SCP (J1850) Invalid or Missing Data for Seat Motion / Contro → /auto/codes/u1200/ SCP (J1850) Invalid or Missing Data for Seat Motion / Control | Network | Medium |
| U1201 | SCP (J1850) Invalid or Missing Data for Seat Motion / Contro → /auto/codes/u1201/ SCP (J1850) Invalid or Missing Data for Seat Motion / Control | Network | Medium |
| U1202 | SCP (J1850) Invalid or Missing Data for Windows → /auto/codes/u1202/ SCP (J1850) Invalid or Missing Data for Windows | Network | Medium |
| U1203 | SCP (J1850) Invalid or Missing Data for Windows → /auto/codes/u1203/ SCP (J1850) Invalid or Missing Data for Windows | Network | Medium |
| U1204 | SCP (J1850) Invalid or Missing Data for Steering Column → /auto/codes/u1204/ SCP (J1850) Invalid or Missing Data for Steering Column | Network | Medium |
| U1205 | SCP (J1850) Invalid or Missing Data for Steering Column → /auto/codes/u1205/ SCP (J1850) Invalid or Missing Data for Steering Column | Network | Medium |
| U1206 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1206/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1207 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1207/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1208 | SCP (J1850) Invalid or Missing Data for Seat Switches → /auto/codes/u1208/ SCP (J1850) Invalid or Missing Data for Seat Switches | Network | Medium |
| U1209 | SCP (J1850) Invalid or Missing Data for Seat Switches → /auto/codes/u1209/ SCP (J1850) Invalid or Missing Data for Seat Switches | Network | Medium |
| U1210 | SCP (J1850) Invalid or Missing Data for Restraints → /auto/codes/u1210/ SCP (J1850) Invalid or Missing Data for Restraints | Network | Medium |
| U1211 | SCP (J1850) Invalid or Missing Data for Restraints → /auto/codes/u1211/ SCP (J1850) Invalid or Missing Data for Restraints | Network | Medium |
| U1212 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1212/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1213 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1213/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1214 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1214/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1215 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1215/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1216 | SCP (J1850) Invalid or Missing Data for External Lamp Outage → /auto/codes/u1216/ SCP (J1850) Invalid or Missing Data for External Lamp Outage | Network | Medium |
| U1217 | SCP (J1850) Invalid or Missing Data for External Lamp Outage → /auto/codes/u1217/ SCP (J1850) Invalid or Missing Data for External Lamp Outage | Network | Medium |
| U1218 | SCP (J1850) Invalid or Missing Data for External Lamps → /auto/codes/u1218/ SCP (J1850) Invalid or Missing Data for External Lamps | Network | Medium |
| U1219 | SCP (J1850) Invalid or Missing Data for External Lamps → /auto/codes/u1219/ SCP (J1850) Invalid or Missing Data for External Lamps | Network | Medium |
| U1220 | SCP (J1850) Invalid or Missing Data for Interior Lamp Outage → /auto/codes/u1220/ SCP (J1850) Invalid or Missing Data for Interior Lamp Outage | Network | Medium |
| U1221 | SCP (J1850) Invalid or Missing Data for Interior Lamp Outage → /auto/codes/u1221/ SCP (J1850) Invalid or Missing Data for Interior Lamp Outage | Network | Medium |
| U1222 | SCP (J1850) Invalid or Missing Data for Interior Lamps → /auto/codes/u1222/ SCP (J1850) Invalid or Missing Data for Interior Lamps | Network | Medium |
| U1223 | SCP (J1850) Invalid or Missing Data for Interior Lamps → /auto/codes/u1223/ SCP (J1850) Invalid or Missing Data for Interior Lamps | Network | Medium |
| U1224 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1224/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1225 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1225/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1226 | SCP (J1850) Invalid or Missing Data for Body Status Request → /auto/codes/u1226/ SCP (J1850) Invalid or Missing Data for Body Status Request | Network | Medium |
| U1227 | SCP (J1850) Invalid or Missing Data for Body Status Request → /auto/codes/u1227/ SCP (J1850) Invalid or Missing Data for Body Status Request | Network | Medium |
| U1228 | SCP (J1850) Invalid or Missing Data for Tires → /auto/codes/u1228/ SCP (J1850) Invalid or Missing Data for Tires | Network | Medium |
| U1229 | SCP (J1850) Invalid or Missing Data for Tires → /auto/codes/u1229/ SCP (J1850) Invalid or Missing Data for Tires | Network | Medium |
| U1230 | SCP (J1850) Invalid or Missing Data for Electric Defrost → /auto/codes/u1230/ SCP (J1850) Invalid or Missing Data for Electric Defrost | Network | Medium |
| U1231 | SCP (J1850) Invalid or Missing Data for Electric Defrost → /auto/codes/u1231/ SCP (J1850) Invalid or Missing Data for Electric Defrost | Network | Medium |
| U1232 | SCP (J1850) Invalid or Missing Data for Navigation → /auto/codes/u1232/ SCP (J1850) Invalid or Missing Data for Navigation | Network | Medium |
| U1233 | SCP (J1850) Invalid or Missing Data for Navigation → /auto/codes/u1233/ SCP (J1850) Invalid or Missing Data for Navigation | Network | Medium |
| U1234 | SCP (J1850) Invalid or Missing Data for Displays → /auto/codes/u1234/ SCP (J1850) Invalid or Missing Data for Displays | Network | Medium |
| U1235 | SCP (J1850) Invalid or Missing Data for Displays → /auto/codes/u1235/ SCP (J1850) Invalid or Missing Data for Displays | Network | Medium |
| U1236 | SCP (J1850) Invalid or Missing Data for Memory Storage → /auto/codes/u1236/ SCP (J1850) Invalid or Missing Data for Memory Storage | Network | Medium |
| U1237 | SCP (J1850) Invalid or Missing Data for Memory Storage → /auto/codes/u1237/ SCP (J1850) Invalid or Missing Data for Memory Storage | Network | Medium |
| U1238 | SCP (J1850) Invalid or Missing Data for Experimental #4 → /auto/codes/u1238/ SCP (J1850) Invalid or Missing Data for Experimental #4 | Network | Medium |
| U1239 | SCP (J1850) Invalid or Missing Data for Experimental #4 → /auto/codes/u1239/ SCP (J1850) Invalid or Missing Data for Experimental #4 | Network | Medium |
| U1240 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1240/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1241 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1241/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1242 | SCP (J1850) Invalid or Missing Data for Exterior Environment → /auto/codes/u1242/ SCP (J1850) Invalid or Missing Data for Exterior Environment | Network | Medium |
| U1243 | SCP (J1850) Invalid or Missing Data for Exterior Environment → /auto/codes/u1243/ SCP (J1850) Invalid or Missing Data for Exterior Environment | Network | Medium |
| U1244 | SCP (J1850) Invalid or Missing Data for Interior Environment → /auto/codes/u1244/ SCP (J1850) Invalid or Missing Data for Interior Environment | Network | Medium |
| U1245 | SCP (J1850) Invalid or Missing Data for Interior Environment → /auto/codes/u1245/ SCP (J1850) Invalid or Missing Data for Interior Environment | Network | Medium |
| U1246 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1246/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1247 | SCP (J1850) Invalid or Missing Data for Primary Id → /auto/codes/u1247/ SCP (J1850) Invalid or Missing Data for Primary Id | Network | Medium |
| U1248 | SCP (J1850) Invalid or Missing Data for Time / Date → /auto/codes/u1248/ SCP (J1850) Invalid or Missing Data for Time / Date | Network | Medium |
| U1249 | SCP (J1850) Invalid or Missing Data for Time / Date → /auto/codes/u1249/ SCP (J1850) Invalid or Missing Data for Time / Date | Network | Medium |
| U1250 | SCP (J1850) Invalid or Missing Data for Vehicle Id (VIN) → /auto/codes/u1250/ SCP (J1850) Invalid or Missing Data for Vehicle Id (VIN) | Network | Medium |
| U1251 | SCP (J1850) Invalid or Missing Data for Vehicle Id (VIN) → /auto/codes/u1251/ SCP (J1850) Invalid or Missing Data for Vehicle Id (VIN) | Network | Medium |
| U1252 | SCP (J1850) Invalid or Missing Data for Class A Functions → /auto/codes/u1252/ SCP (J1850) Invalid or Missing Data for Class A Functions | Network | Medium |
| U1253 | SCP (J1850) Invalid or Missing Data for Class A Functions → /auto/codes/u1253/ SCP (J1850) Invalid or Missing Data for Class A Functions | Network | Medium |
| U1254 | SCP (J1850) Invalid or Missing Data for Network Control → /auto/codes/u1254/ SCP (J1850) Invalid or Missing Data for Network Control | Network | Medium |
| U1255 | SCP (J1850) Invalid or Missing Data for Network Control → /auto/codes/u1255/ SCP (J1850) Invalid or Missing Data for Network Control | Network | Medium |
| U1260 | SCP (J1850) Single Ended (+) Circuit Failure → /auto/codes/u1260/ SCP (J1850) Single Ended (+) Circuit Failure | Network | Medium |
| U1261 | SCP (J1850) Single Ended (-) Circuit Failure → /auto/codes/u1261/ SCP (J1850) Single Ended (-) Circuit Failure | Network | Medium |
| U1262 | OBD II fault code is a manufacturer specific code that is de → /auto/codes/u1262/ OBD II fault code is a manufacturer specific code that is defined by car maker Ford as U1262 – “SCP (J1850) Communication Bus Fault”, or sometimes as | Network | Medium |
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