These 57 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 57 times.
| Code | Definition | Repair coverage |
|---|---|---|
| U3000 | Control Module | 5 ranked fixes |
| U3001 | Control Module Improper Shutdown Performance | 5 ranked fixes |
| U3002 | Vehicle Identification Number | 5 ranked fixes |
| U3003 | Battery Voltage | 5 ranked fixes |
| U3004 | Accessory Power Relay | 5 ranked fixes |
| U3005 | Retained Accessory Power | 5 ranked fixes |
| U3006 | Control Module Input Power A Circuit/Open | 5 ranked fixes |
| U3007 | Control Module Input Power B Circuit/Open | 5 ranked fixes |
| U3008 | Control Module Ground A | 5 ranked fixes |
| U3009 | Control Module Ground B | 5 ranked fixes |
| U300A | Ignition Switch | 5 ranked fixes |
| U300B | Ignition Input Accessory/On/Start | 5 ranked fixes |
| U300C | Ignition Input Off/On/Start | 5 ranked fixes |
| U300D | Ignition Input On/Start | 5 ranked fixes |
| U300E | Ignition Input On | 5 ranked fixes |
| U300F | Ignition Input Accessory | 5 ranked fixes |
| U3010 | Ignition Input Start | 5 ranked fixes |
| U3011 | Ignition Input Off | 5 ranked fixes |
| U3013 | Control Module Input Power C Circuit/Open | 5 ranked fixes |
| U3014 | Control Module Input Power D Circuit/Open | 5 ranked fixes |
| U3015 | Control Module Ground C | 5 ranked fixes |
| U3016 | Control Module Ground D | 5 ranked fixes |
| U3018 | Control Module Input Power Circuit A/B Correlation | 5 ranked fixes |
| U3019 | Control Module Input Power Circuit B/C Correlation | 5 ranked fixes |
| U3022 | Ignition Input Accessory/Off | 5 ranked fixes |
| U3023 | Control Module Input Power Circuit A - Ignition Input On/Start Circuit Correlation | 5 ranked fixes |
| U3024 | Control Module Input Power Circuit B - Ignition Input On/Start Circuit Correlation | 5 ranked fixes |
| U3025 | Control Module A Disable Circuit/Open | 5 ranked fixes |
| U3026 | Control Module A Disable Circuit Low | 5 ranked fixes |
| U3027 | Control Module A Disable Circuit High | 5 ranked fixes |
| U3028 | Control Module A Disable Feedback Circuit | 5 ranked fixes |
| U3029 | Control Module A Disable Feedback Circuit Low | 5 ranked fixes |
| U302A | Control Module A Disable Feedback Circuit High | 5 ranked fixes |
| U302B | Ignition Output Accessory/On/Start | 5 ranked fixes |
| U302C | Ignition Output Off/On/Start | 5 ranked fixes |
| U302D | Ignition Output On/Start | 5 ranked fixes |
| U302E | Ignition Output On | 5 ranked fixes |
| U302F | Ignition Output Accessory | 5 ranked fixes |
| U3030 | Ignition Output Start | 5 ranked fixes |
| U3031 | Ignition Output Off | 5 ranked fixes |
| U3032 | Ignition Output Accessory/Off | 5 ranked fixes |
| U3500 | Control Module Input Power A Circuit Range/Performance | 5 ranked fixes |
| U3501 | Control Module Input Power A Circuit Low | 5 ranked fixes |
| U3502 | Control Module Input Power A Circuit High | 5 ranked fixes |
| U3503 | Control Module Input Power A Circuit Intermittent/Erratic | 5 ranked fixes |
| U3504 | Control Module Input Power B Circuit Range/Performance | 5 ranked fixes |
| U3505 | Control Module Input Power B Circuit Low | 5 ranked fixes |
| U3506 | Control Module Input Power B Circuit High | 5 ranked fixes |
| U3507 | Control Module Input Power B Circuit Intermittent/Erratic | 5 ranked fixes |
| U3508 | Control Module Input Power C Circuit Range/Performance | 5 ranked fixes |
| U3509 | Control Module Input Power C Circuit Low | 5 ranked fixes |
| U350A | Control Module Input Power C Circuit High | 5 ranked fixes |
| U350B | Control Module Input Power C Circuit Intermittent/Erratic | 5 ranked fixes |
| U350C | Control Module Cooling Fan Circuit/Open | 5 ranked fixes |
| U350D | Control Module Cooling Fan Circuit Low | 5 ranked fixes |
| U350E | Control Module Cooling Fan Circuit High | 5 ranked fixes |
| U350F | Control Module Cooling Fan Circuit Range/Performance | 5 ranked fixes |
This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here:
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