Data Communications System - Diagnostic Trouble Codes
DATA COMMUNICATIONS SYSTEM - DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1000 | DTC B1000 00 Electronic Control Unit Malfunction DTC B1000 08 Electronic Control Unit Performance - Signal Invalid DTC B1000 0F Electronic Control Unit Signal Erratic DTC B1000 12 Electronic Control Unit Low Input DTC B1000 2B Electronic Control Unit Missing Reference DTC B1000 34 Electronic Control Unit RAM Malfunction DTC B1000 35 Electronic Control Unit ROM Malfunction DTC B1000 36 Electronic Control Unit EEPROM Performance/Malfunction DTC B1000 37 Electronic Control Unit Software Malfunction DTC B1000 38 Electronic Control Unit Supervision Software Malfunction DTC B1000 39 Electronic Control Unit Internal Malfunction DTC B1000 43 Electronic Control Unit EEPROM Incorrect Programming DTC B1000 46 Electronic Control Unit Configuration Not Programmed DTC B1000 4A Electronic Control Unit Programming Checksum Error DTC B1000 56 Electronic Control Unit Too Many Transitions DTC B1000 73 Electronic Control Unit Parity Error DTC B1000 F0 Electronic Control Unit DTC B1000 F1 Electronic Control Unit DTC B1000 F2 Electronic Control Unit DTC B1000 F3 Electronic Control Unit |
| DTC B1001 | DTC B1001 00 Option Configuration Malfunction DTC B1001 33 Option Configuration Special Memory Malfunction DTC B1001 45 Option Configuration Variant Not Programmed DTC B1001 4B Option Configuration Calibration Not Learned |
| DTC B1016 | DTC B1016 XX Vehicle Identification Number Information Not Programmed |
| DTC B101D | DTC B101D 00 Electronic Control Unit Hardware Malfunction DTC B101D 04 Electronic Control Unit Hardware Open DTC B101D 08 Electronic Control Unit Hardware Performance - Signal Invalid DTC B101D 0F Electronic Control Unit Hardware Signal Erratic DTC B101D 12 Electronic Control Unit Hardware Low Input DTC B101D 13 Electronic Control Unit Hardware Low Voltage/High Temperature DTC B101D 14 Electronic Control Unit Hardware High Voltage/Low Temperature DTC B101D 1A Electronic Control Unit Hardware Performance - Bias Level Out of Range DTC B101D 2B Electronic Control Unit Hardware Missing Reference DTC B101D 2C Electronic Control Unit Hardware DTC B101D 31 Electronic Control Unit Hardware Internal Checksum Error DTC B101D 32 Electronic Control Unit Hardware General Memory Malfunction DTC B101D 34 Electronic Control Unit Hardware RAM Malfunction DTC B101D 35 Electronic Control Unit Hardware ROM Malfunction DTC B101D 36 Electronic Control Unit Hardware EEPROM Performance/Malfunction DTC B101D 37 Electronic Control Unit Hardware Software Malfunction DTC B101D 38 Electronic Control Unit Hardware Supervision Software Malfunction DTC B101D 39 Electronic Control Unit Hardware Internal Malfunction DTC B101D 3A Electronic Control Unit Hardware Incorrect Component Installed DTC B101D 3B Electronic Control Unit Hardware Self-Test Malfunction DTC B101D 3C Electronic Control Unit Hardware Internal Communication Malfunction DTC B101D 43 Electronic Control Unit Hardware EEPROM Incorrect Programming DTC B101D 73 Electronic Control Unit Hardware Parity Error DTC B101D F0 Electronic Control Unit Hardware DTC B101D F1 Electronic Control Unit Hardware |
| DTC B101E | DTC B101E 00 Electronic Control Unit Software Malfunction DTC B101E 31 Electronic Control Unit Software Internal Checksum Error DTC B101E 32 Electronic Control Unit Software General Memory Malfunction DTC B101E 41 Electronic Control Unit Software Not Programmed DTC B101E 42 Electronic Control Unit Software Calibration Not Programmed DTC B101E 43 Electronic Control Unit Software EEPROM Incorrect Programming DTC B101E 44 Electronic Control Unit Software Security Access Not Activated DTC B101E 45 Electronic Control Unit Software Variant Not Programmed DTC B101E 46 Electronic Control Unit Software Configuration Not Programmed DTC B101E 47 Electronic Control Unit Software VIN Not Programmed DTC B101E 48 Electronic Control Unit Software Security Code Not Programmed DTC B101E 4A Electronic Control Unit Software Programming Checksum Error DTC B101E 4B Electronic Control Unit Software Calibration Not Learned DTC B101E 4C Electronic Control Unit Software DTC Memory Full |
| DTC C0550 | DTC C0550 00 Electronic Control Unit Malfunction DTC C0550 35 Electronic Control Unit ROM Malfunction DTC C0550 39 Electronic Control Unit Internal Malfunction DTC C0550 43 Electronic Control Unit EEPROM Incorrect Programming |
| DTC C056D | DTC C056D 00 Electronic Control Unit Hardware Malfunction DTC C056D 0F Electronic Control Unit Hardware Signal Erratic DTC C056D 18 Electronic Control Unit Hardware Low Signal Amplitude DTC C056D 31 Electronic Control Unit Hardware Internal Checksum Error DTC C056D 32 Electronic Control Unit Hardware General Memory Malfunction DTC C056D 33 Electronic Control Unit Hardware Special Memory Malfunction DTC C056D 34 Electronic Control Unit Hardware RAM Malfunction DTC C056D 35 Electronic Control Unit Hardware ROM Malfunction DTC C056D 36 Electronic Control Unit Hardware EEPROM Performance/Malfunction DTC C056D 37 Electronic Control Unit Hardware Software Malfunction DTC C056D 39 Electronic Control Unit Hardware Internal Malfunction DTC C056D 3A Electronic Control Unit Hardware Incorrect Component Installed DTC C056D 3B Electronic Control Unit Hardware Self-Test Malfunction DTC C056D 3C Electronic Control Unit Hardware Internal Communication Malfunction DTC C056D 43 Electronic Control Unit Hardware EEPROM Incorrect Programming |
| DTC C056E | DTC C056E 00 Electronic Control Unit Software Malfunction DTC C056E 38 Electronic Control Unit Software Supervision Software Malfunction DTC C056E 41 Electronic Control Unit Software Not Programmed DTC C056E 42 Electronic Control Unit Software Calibration Not Programmed DTC C056E 43 Electronic Control Unit Software EEPROM Incorrect Programming DTC C056E 45 Electronic Control Unit Software Variant Not Programmed DTC C056E 46 Electronic Control Unit Software Configuration Not Programmed DTC C056E 47 Electronic Control Unit Software VIN Not Programmed DTC C056E 48 Electronic Control Unit Software Security Code Not Programmed DTC C056E 4A Electronic Control Unit Software Programming Checksum Error DTC C056E 4B Electronic Control Unit Software Calibration Not Learned DTC C056E 5A Electronic Control Unit Software Not Plausible DTC C056E 71 Electronic Control Unit Software Invalid Data |
| DTC C078A | DTC C078A 39 Tire Pressure Indicator Module Internal Malfunction |
| DTC P0601-P0604, P0606, or P062F | DTC P0601 00 Control Module Read Only Memory Performance DTC P0602 00 Control Module Not Programmed DTC P0603 00 Control Module Long Term Memory Reset DTC P0604 00 Control Module Random Access Memory Performance DTC P0606 00 Control Module Processor Performance DTC P062F 00 Control Module Long Term Memory Performance |
| DTC P06E4 | DTC P06E4 00 Control Module Wake-Up Circuit Performance |
| DTC P0A1F, P1A05, or P1A06 | DTC P0A1F 00 Battery Energy Control Module Internal Performance DTC P1A05 00 Battery Energy Control Module Random Access Memory (RAM) DTC P1A06 00 Battery Energy Control Module Read Only Memory (ROM) |
| DTC P16B7 | DTC P16B7 00 Electric A/C Compressor Control Module Wake-Up Circuit Performance |
| DTC P16B8-P16BA | DTC P16B8 00 Electric A/C Compressor Control Module Random Access Memory Performance DTC P16B9 00 Electric A/C Compressor Control Module Read Only Memory Performance DTC P16BA 00 Electric A/C Compressor Control Module Long Term Memory Performance |
| DTC P16C1-P16C5 | DTC P16C1 00 Battery Charger Control Module Read Only Memory Performance DTC P16C2 00 Battery Charger Control Module Random Access Memory Performance DTC P16C3 00 Battery Charger Control Module Long Term Memory Performance DTC P16C4 00 Battery Charger Control Module Serial Peripheral Interface (SPI) Bus 1 DTC P16C5 00 Battery Charger Control Module Serial Peripheral Interface (SPI) Bus 2 |
| DTC P16C6 | DTC P16C6 00 Battery Charger Control Module Wake-Up Circuit Performance |
| DTC P1E8E-P1E91 | DTC P1E8E 00 Hybrid/EV Battery Interface Control Module 1 Performance DTC P1E8F 00 Hybrid/EV Battery Interface Control Module 1 Random Access Memory Performance DTC P1E90 00 Hybrid/EV Battery Interface Control Module 1 Read Only Memory Performance DTC P1E91 00 Hybrid/EV Battery Interface Control Module 1 Long Term Memory Performance |
| DTC P1E94-P1E97 | DTC P1E94 00 Hybrid/EV Battery Interface Control Module 2 Performance DTC P1E95 00 Hybrid/EV Battery Interface Control Module 2 Random Access Memory Performance DTC P1E96 00 Hybrid/EV Battery Interface Control Module 2 Read Only Memory Performance DTC P1E97 00 Hybrid/EV Battery Interface Control Module 2 Long Term Memory Performance |
| DTC P1E9A-P1E9D | DTC P1E9A 00 Hybrid/EV Battery Interface Control Module 3 Performance DTC P1E9B 00 Hybrid/EV Battery Interface Control Module 3 Random Access Memory Performance DTC P1E9C 00 Hybrid/EV Battery Interface Control Module 3 Read Only Memory Performance DTC P1E9D 00 Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance |
| DTC P1EA0-P1EA3 | DTC P1EA0 00 Hybrid/EV Battery Interface Control Module 4 Performance DTC P1EA1 00 Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance DTC P1EA2 00 Hybrid/EV Battery Interface Control Module 4 Read Only Memory Performance DTC P1EA3 00 Hybrid/EV Battery Interface Control Module 4 Long Term Memory Performance |
| DTC P1EB1 | DTC P1EB1 00 Hybrid/EV Battery Interface Control Module Software Incompatible |
| DTC P1EB2-P1EB5 | DTC P1EB2 00 Hybrid/EV Battery Interface Control Module 1 Not Programmed DTC P1EB3 00 Hybrid/EV Battery Interface Control Module 2 Not Programmed DTC P1EB4 00 Hybrid/EV Battery Interface Control Module 3 Not Programmed DTC P1EB5 00 Hybrid/EV Battery Interface Control Module 4 Not Programmed |
| DTC P1EB9 | DTC P1EB9 00 High Voltage Energy Communication Bus Enable Circuit |
| DTC P1EC1 or P1EC2 | DTC P1EC1 00 Battery Energy Control Module High Voltage Energy Communication Bus Enable Circuit Low Voltage DTC P1EC2 00 Battery Energy Control Module High Voltage Energy Communication Bus Enable Circuit High Voltage |
| DTC P1EF8 | DTC P1EF8 00 Battery Charger Control Module High Voltage Energy Communication Bus Enable Circuit Low Voltage |
| DTC P1F06-P1F09 | DTC P1F06 00 Hybrid/EV Battery Interface Control Module 1 Processor Performance DTC P1F07 00 Hybrid/EV Battery Interface Control Module 2 Processor Performance DTC P1F08 00 Hybrid/EV Battery Interface Control Module 3 Processor Performance DTC P1F09 00 Hybrid/EV Battery Interface Control Module 4 Processor Performance |
| DTC P262B | DTC P262B 00 Control Module Power Off Timer Performance |
| DTC U0001 | DTC U0001 00 High Speed CAN Communication Bus Malfunction |
| DTC U0002 | DTC U0002 High Speed CAN Bus |
| DTC U0020 | DTC U0020 00 Low Speed CAN Communication Bus Performance |
| DTC U0073 or U2100 | DTC U0073 00 Control Module Communication Bus Off Malfunction DTC U0073 71 ECU High Speed Bus Off DTC U0073 72 ECU Low Speed Bus Off DTC U2100 00 CAN Bus Communication Malfunction DTC U2100 47 CAN Bus Communication VIN Not Programmed |
| DTC U0074 | DTC U0074 00 Control Module Powertrain Expansion Communication Bus Off |
| DTC U0077 | DTC U0077 00 Control Module Chassis Expansion Communication Bus Off |
| DTC U007A | DTC U007A 00 Control Module High Voltage Energy Management Communication Bus Off |
| DTC U0078 | DTC U0078 00 Control Module Low Speed Communication Bus Off Malfunction |
| DTC U0100-U02FF | Control Module U Code List |
| DTC U0300-U0336 | DTC U0301 00 Software Incompatibility with Engine Control Module Malfunction DTC U0302 00 Software Incompatibility with Transmission Control Module Malfunction DTC U0315 00 Software Incompatibility with Electronic Brake Control Module Malfunction |
| DTC U0400-U05FF | Control Module U Code List |
| DTC U1500-U15BF | Control Module U Code List |
| DTC U1793 | DTC U1793 00 14V Power Module Lost Communication with Hybrid Powertrain Control Module on Powertrain Expansion Communication Bus |
| DTC U1795 | DTC U1795 00 14V Power Module Powertrain Expansion Communication Bus Off |
| DTC U179A | DTC U179A 00 Lost Communication with Hybrid Powertrain Control Module 2 |
| DTC U1803 | DTC U1803 00 Lost Communication with Hybrid Powertrain Control Module 2 |
| DTC U1806 | DTC U1806 00 Battery Energy Control Module High Voltage Energy Management Communication Bus Off |
| DTC U1807 | DTC U1807 00 Battery Charger Control Module High Voltage Energy Communication Bus Off |
| DTC U180A | DTC U180A 00 Electric A/C Compressor Control Module High Speed Communication Bus Off |
| DTC U180B | DTC U180B 00 Battery Energy Control Module High Speed GMLAN Communication Bus Off |
| DTC U180C | DTC U180C 00 Battery Charger Control Module High Speed GMLAN Communication Bus Off |
| DTC U180D | DTC U180D 00 Electronic Brake Control Module Chassis Expansion Communication Bus Off |
| DTC U1814 | DTC U1814 00 Accessory Wakeup Serial Data Circuit DTC U1814 01 Accessory Wakeup Serial Data Circuit Short to Battery DTC U1814 02 Accessory Wakeup Serial Data Circuit Short to Ground DTC U1814 04 Accessory Wakeup Serial Data Circuit Open DTC U1814 5A Accessory Wakeup Serial Data Circuit Not Plausible |
| DTC U1817 | DTC U1817 00 Lost Communication with Hybrid Powertrain Control Module on Powertrain Expansion Communication Bus |
| DTC U1818 | DTC U1818 00 Lost Communication with Engine Control Module on Powertrain Expansion Communication Bus |
| DTC U1821 | DTC U1821 00 Lost Communication with 14V Power Module on Powertrain Expansion Communication Bus |
| DTC U182D | DTC U182D 00 Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus |
| DTC U182E or U182F | DTC U182E 00 Drive Motor Control Module 1 Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus DTC U182F 00 Drive Motor Control Module 2 Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus |
| DTC U1833 | DTC U1833 00 Lost Communication with Electronic Brake Control Module on Chassis Expansion Communication Bus |
| DTC U1838 | DTC U1838 00 Lost Communication with Battery Charger Control Module on High Voltage Energy Management CAN Bus |
| DTC U1839 | DTC U1839 00 Auxiliary Transmission Fluid Pump Control Module Lost Communication with Engine Control Module |
| DTC U183B | DTC U183B 00 Auxiliary Transmission Fluid Pump Control Module Lost Communication with Transmission Control Module |
| DTC U183C | DTC U183C 00 Auxiliary Transmission Fluid Pump Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus |
| DTC U183E | DTC U183E 00 Lost Communication with OnStar Module on Low Speed Communication Bus |
| DTC U1845 or U1846 | DTC U1845 00 Drive Motor Control Module 1 Lost Communication with Hybrid Powertrain Control Module DTC U1846 00 Drive Motor Control Module 2 Lost Communication with Hybrid Powertrain Control Module |
| DTC U1849 | DTC U1849 00 Drive Motor Control Module 1 Lost Communication with Transmission Control Module |
| DTC U184A | DTC U184A 00 Lost Communication with Body Control Module on Low Speed Communication Bus |
| DTC U184B | DTC U184B 00 Lost Communication with Electronic Climate Control Module on Low Speed Communication Bus |
| DTC U184C | DTC U184C 00 Lost Communication with Instrument Cluster on Low Speed Communication Bus |
| DTC U184D | DTC U184D 00 Lost Communication with Radio on Low Speed Communication Bus |
| DTC U184E | DTC U184E 00 Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed Communication Bus |
| DTC U1850 | DTC U1850 00 Drive Motor Control Module 2 Lost Communication with Transmission Control Module |
| DTC U1858 | DTC U1858 00 Electronic Brake Control Module Lost Communication with Hybrid Powertrain Control Module on Chassis Expansion Communication Bus |
| DTC U185A | DTC U185A 00 Lost Communication with Battery Energy Control Module on High Voltage Energy Management Communication Bus |
| DTC U185B | DTC U185B 00 Battery Energy Control Module Lost Communication with Hybrid Powertrain Control Module 2 on High Voltage Energy Management Communication Bus |
| DTC U185C | DTC U185C 00 Battery Charger Control Module Lost Communication with Hybrid Powertrain Control Module 2 on High Voltage Energy Management Communication Bus |
| DTC U1860 | DTC U1860 00 Electric A/C Compressor Control Module Lost Communication with Hybrid Powertrain Control Module 2 |
| DTC U1861 | DTC U1861 00 Battery Charger Control Module Lost Communication with Engine Control Module |
| DTC U186A | DTC U186A 00 Electronic Brake Control Module Lost Communication with Engine Control Module |
| DTC U186B | DTC U186B 00 Electronic Brake Control Module Lost Communication with Transmission Control Module |
| DTC U1876 | DTC U1876 00 Drive Motor Control Module 1 Lost Communication with Engine Control Module |
| DTC U1879 | DTC U1879 00 Drive Motor Control Module 2 Lost Communication with Engine Control Module |
| DTC U1885 | DTC U1885 00 Battery Energy Control Module Lost Communication with Hybrid Powertrain Control Module |
| DTC U18B9-U18BF | DTC U18B9 Primary High Speed CAN Bus Subnet Configuration List DTC U18BF Secondary High Speed CAN Bus Subnet Configuration List |
| DTC U2099 | DTC U2099 00 High Speed Communication Enable Circuit DTC U2099 01 High Speed Communication Enable Circuit Short to Battery DTC U2099 02 High Speed Communication Enable Circuit Short to Ground DTC U2099 04 High Speed Communication Enable Circuit Open DTC U2099 5A High Speed Communication Enable Circuit Not Plausible |
| DTC U2101 | DTC U2101 CAN Bus Maximum Configuration List |
| DTC U2103 | DTC U2103 00 Fewer Controllers On Than Programmed |
| DTC U2105-U2199 | Control Module U Code List |
| DTC U2401 | DTC U2401 00 Battery Energy Control Module Dedicated Bus 1 Off |
| DTC U2602 | DTC U2602 00 Battery Energy Control Module Lost Communication with Hybrid Powertrain Control Module 2 |
| DTC U2603 | DTC U2603 00 Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 1 |
| DTC U2604 | DTC U2604 00 Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 2 |
| DTC U2605 | DTC U2605 00 Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 3 |
| DTC U2606 | DTC U2606 00 Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 4 |
| DTC U2608 | DTC U2608 00 Electric A/C Compressor Control Module Lost Communication with Hybrid Powertrain Control Module |
| DTC U2609 | DTC U2609 00 Battery Charger Control Module Lost Communication with Hybrid Powertrain Control Module |
| DTC U2611 | DTC U2611 00 Auxiliary Transmission Fluid Pump Control Module Lost Communication with Hybrid Powertrain Control Module |
| DTC U2612 | DTC U2612 00 Battery Charger Control Module Lost Communication with Hybrid Powertrain Control Module 2 |
| DTC U2613-U2615 | DTC U2613 Drive Motor 1 Control Module Lost Communication with Hybrid Powertrain Control Module 2 DTC U2614 Drive Motor 2 Control Module Lost Communication with Hybrid Powertrain Control Module 2 DTC U2615 Auxiliary Transmission Fluid Pump Control Module Lost Communication with Hybrid Powertrain Control Module 2 |