OBD fault code library

Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.

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Fault codes

U1211 SCP (J1850) Invalid or Missing Data for Restraints

Communication Network System High severity

U1215 SCP (J1850) Invalid or Missing Data for Primary Id

Communication Network System High severity

U1219 SCP (J1850) Invalid or Missing Data for External Lamps

Communication Network System High severity

U1222 SCP (J1850) Invalid or Missing Data for Interior Lamps

Communication Network System High severity

U1225 SCP (J1850) Invalid or Missing Data for Primary Id

Communication Network System High severity

U1229 SCP (J1850) Invalid or Missing Data for Tires

Communication Network System High severity

U1232 SCP (J1850) Invalid or Missing Data for Navigation

Communication Network System High severity

U1235 SCP (J1850) Invalid or Missing Data for Displays

Communication Network System High severity

U1238 SCP (J1850) Invalid or Missing Data for Experimental 4

Communication Network System High severity

U1243 SCP (J1850) Invalid or Missing Data for Exterior Environment

Communication Network System High severity

U1246 SCP (J1850) Invalid or Missing Data for Primary Id

Communication Network System High severity

U1250 SCP (J1850) Invalid or Missing Data for Vehicle Id (VIN)

Communication Network System High severity

U1253 SCP (J1850) Invalid or Missing Data for Class A Functions

Communication Network System High severity

U1261 SCP (J1850) Single Ended (-) Circuit Failure

Communication Network System High severity

U1262 SCP (J1850) Communication Bus Fault

Communication Network System High severity