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
U1242
SCP (J1850) Invalid or Missing Data for Exterior Environment
Communication Network System
High severity
U1244
SCP (J1850) Invalid or Missing Data for Interior Environment
Communication Network System
High severity
U1245
SCP (J1850) Invalid or Missing Data for Interior Environment
Communication Network System
High severity
U1248
SCP (J1850) Invalid or Missing Data for Time / Date
Communication Network System
High severity
U1249
SCP (J1850) Invalid or Missing Data for Time / Date
Communication Network System
High severity
U1251
SCP (J1850) Invalid or Missing Data for Vehicle Id (VIN)
Communication Network System
High severity
U1252
SCP (J1850) Invalid or Missing Data for Class A Functions
Communication Network System
High severity
U1254
SCP (J1850) Invalid or Missing Data for Network Control
Communication Network System
High severity
U1255
SCP (J1850) Invalid or Missing Data for Network Control
Communication Network System
High severity
P1849
Internal malfunction detected in Transmission control module
Volkswagen
Computer Output Circuit
High severity
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