Diagnostic Trouble Code Search
Find detailed information about vehicle diagnostic trouble codes (DTCs). Enter a code or select a make to search our comprehensive database.
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U Codes |
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|---|---|---|---|---|---|
| Code | Type | System | System Name | Module | Message |
| U1020 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Air Conditioning Clutch |
| U1021 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Air Conditioning Clutch |
| U1022 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1023 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1024 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1025 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1026 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Engine RPM |
| U1027 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Engine RPM |
| U1028 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1029 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1030 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Experimental #1 |
| U1031 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Experimental #1 |
| U1032 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1033 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1034 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1035 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1036 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Wheels |
| U1037 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Wheels |
| U1038 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id |
| U1039 | U-Code | Network | Communication | Communication Module | SCP (J1850) Invalid or Missing Data for Primary Id/Vehicle Speed |