Data Communications System - Diagnostic Trouble Codes
DATA COMMUNICATIONS SYSTEM - DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1000 | B1000 XX: Electronic Control Unit |
| DTC B1001 | B1001 XX: Option Configuration |
| DTC B1016 | B1016 XX: Vehicle Identification Number Information Not Programmed |
| DTC B101D | B101D XX: ECU Hardware |
| DTC B101E | B101E XX: ECU Software |
| DTC C0550 | C0550 XX: Electronic Control Unit |
| DTC C056D | C056D XX: Electronic Control Unit Hardware |
| DTC C056E | C056E XX: Electronic Control Unit Software |
| DTC P0601-P0604, P0606, or P062F | P0601 00: Control Module Read Only Memory Performance P0602 00: Control Module Not Programmed P0603 00: Control Module Long Term Memory Reset P0604 00: Control Module Random Access Memory Performance P0606 00: Control Module Processor Performance P062F 00: Control Module Long Term Memory Performance |
| DTC P06E4 | P06E4 00: Control Module Wake-Up Circuit Performance |
| DTC P0A1F, P1A05, or P1A06 | P0A1F 00: Battery Energy Control Module Internal Performance P1A05 00: Battery Energy Control Module Random Access Memory (RAM) P1A06 00: Battery Energy Control Module Read Only Memory (ROM) |
| DTC P16B7 | P16B7 00: Electric A/C Compressor Control Module Wake-Up Circuit Performance |
| DTC P16B8-P16BA | P16B8 00: Electric A/C Compressor Control Module Random Access Memory Performance P16B9 00: Electric A/C Compressor Control Module Read Only Memory Performance P16BA 00: Electric A/C Compressor Control Module Long Term Memory Performance |
| DTC P16C1-P16C5 | P16C1 00: Battery Charger Control Module Read Only Memory Performance P16C2 00: Battery Charger Control Module Random Access Memory Performance P16C3 00: Battery Charger Control Module Long Term Memory Performance P16C4 00: Battery Charger Control Module Serial Peripheral Interface (SPI) Bus 1 P16C5 00: Battery Charger Control Module Serial Peripheral Interface (SPI) Bus 2 |
| DTC P16C6 | P16C6 00: Battery Charger Control Module Wake-Up Circuit Performance |
| DTC P1E8E-P1E91 | P1E8E 00: Hybrid/EV Battery Interface Control Module 1 Performance P1E8F 00: Hybrid/EV Battery Interface Control Module 1 Random Access Memory Performance P1E90 00: Hybrid/EV Battery Interface Control Module 1 Read Only Memory Performance P1E91 00: Hybrid/EV Battery Interface Control Module 1 Long Term Memory Performance |
| DTC P1E94-P1E97 | P1E94 00: Hybrid/EV Battery Interface Control Module 2 Performance P1E95 00: Hybrid/EV Battery Interface Control Module 2 Random Access Memory Performance P1E96 00: Hybrid/EV Battery Interface Control Module 2 Read Only Memory Performance P1E97 00: Hybrid/EV Battery Interface Control Module 2 Long Term Memory Performance |
| DTC P1E9A-P1E9D | P1E9A 00: Hybrid/EV Battery Interface Control Module 3 Performance P1E9B 00: Hybrid/EV Battery Interface Control Module 3 Random Access Memory Performance P1E9C 00: Hybrid/EV Battery Interface Control Module 3 Read Only Memory Performance P1E9D 00: Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance |
| DTC P1EA0-P1EA3 | P1EA0 00: Hybrid/EV Battery Interface Control Module 4 Performance P1EA1 00: Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance P1EA2 00: Hybrid/EV Battery Interface Control Module 4 Read Only Memory Performance P1EA3 00: Hybrid/EV Battery Interface Control Module 4 Long Term Memory Performance |
| DTC P1EB1 | P1EB1 00: Hybrid/EV Battery Interface Control Module Software Incompatible |
| DTC P1EB2-P1EB5 | P1EB2 00: Hybrid/EV Battery Interface Control Module 1 Not Programmed P1EB3 00: Hybrid/EV Battery Interface Control Module 2 Not Programmed P1EB4 00: Hybrid/EV Battery Interface Control Module 3 Not Programmed P1EB5 00: Hybrid/EV Battery Interface Control Module 4 Not Programmed |
| DTC P1EB9 | P1EB9 00: High Voltage Energy Communication Bus Enable Circuit |
| DTC P1EC1 or P1EC2 | P1EC1 00: Battery Energy Control Module High Voltage Energy Communication Bus Enable Circuit Low Voltage P1EC2 00: Battery Energy Control Module High Voltage Energy Communication Bus Enable Circuit High Voltage |
| DTC P1EF8 | P1EF8 00: Battery Charger Control Module High Voltage Energy Communication Bus Enable Circuit Low Voltage |
| DTC P1F06-P1F09 | P1F06 00: Hybrid/EV Battery Interface Control Module 1 Processor Performance P1F07 00: Hybrid/EV Battery Interface Control Module 2 Processor Performance P1F08 00: Hybrid/EV Battery Interface Control Module 3 Processor Performance P1F09 00: Hybrid/EV Battery Interface Control Module 4 Processor Performance |
| DTC P262B | P262B 00: Control Module Power Off Timer Performance |
| DTC U0001 | U0001 00: High Speed CAN Communication Bus |
| DTC U0002 | U0002: High Speed CAN Bus |
| DTC U0020 | U0020 00: Low Speed CAN Communication Bus Performance |
| DTC U0073 or U2100 | U0073 00: Control Module Communication Bus Off U0073 71: ECU HS Bus Off U0073 72: ECU LS Bus Off U2100 00: Controller Area Network (CAN) Bus Communication U2100 47: Controller Area Network (CAN) Bus Communication |
| DTC U0074 | U0074 00: Control Module Powertrain Expansion Communication Bus Off |
| DTC U0077 | U0077 00: Control Module Chassis Expansion Communication Bus Off |
| DTC U0078 | U0078 00: Control Module Low Speed Communication Bus Off |
| DTC U007A | U007A 00: Control Module High Voltage Energy Management Communication Bus Off |
| DTC U0100-U02FF | Control Module Error. See "Control Module U Code List" under testing for this DTC. |
| DTC U0300-U0336 | U0301 00: Software Incompatibility with Engine Control Module U0302 00: Software Incompatibility with Transmission Control Module U0315 00: Software Incompatibility with Electronic Brake Control Module |
| DTC U0400-U05FF | Control Module Error. See "Control Module U Code List" under testing for this DTC. |
| DTC U1500-U15BF | Control Module Error. See "Control Module U Code List" under testing for this DTC. |
| DTC U1793 | U1793 00: 14V Power Module Lost Communication with Hybrid Powertrain Control Module on Powertrain Expansion Communication Bus |
| DTC U1795 | U1795 00: 14V Power Module Powertrain Expansion Communication Bus Off |
| DTC U179A | U179A 00: Lost Communication with Hybrid Powertrain Control Module 2 |
| DTC U1803 | U1803 00: Lost Communication with Hybrid Powertrain Control Module 2 |
| DTC U1806 | U1806 00: Battery Energy Control Module High Voltage Energy Management Communication Bus Off |
| DTC U1807 | U1807 00: Battery Charger Control Module High Voltage Energy Communication Bus Off |
| DTC U180A | U180A 00: Electric A/C Compressor Control Module High Speed Communication Bus Off |
| DTC U180B | U180B 00: Battery Energy Control Module High Speed GMLAN Communication Bus Off |
| DTC U180C | U180C 00: Battery Charger Control Module High Speed GMLAN Communication Bus Off |
| DTC U180D | U180D 00: Electronic Brake Control Module Chassis Expansion Communication Bus Off |
| DTC U1814 | U1814 00: Powertrain Wake Up Communication Circuit |
| DTC U1817 | U1817 00: Lost Communication with Hybrid Powertrain Control Module on Powertrain Expansion Communication Bus |
| DTC U1818 | U1818 00: Lost Communication with Engine Control Module on Powertrain Expansion Communication Bus |
| DTC U1821 | U1821 00: Lost Communication with 14V Power Module on Powertrain Expansion Communication Bus |
| DTC U182D | U182D 00: Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus |
| DTC U182E or U182F | U182E 00: Drive Motor Control Module 1 Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus U182F 00: Drive Motor Control Module 2 Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus |
| DTC U1833 | U1833 00: Lost Communication with Electronic Brake Control Module on Chassis Expansion Communication Bus |
| DTC U1838 | U1838 00: Lost Communication with Battery Charger Control Module on High Voltage Energy Management Communication Bus |
| DTC U1839 | U1839 00: Auxiliary Transmission Fluid Pump Control Module Lost Communication with Engine Control Module |
| DTC U183B | U183B 00: Auxiliary Transmission Fluid Pump Control Module Lost Communication with Transmission Control Module |
| DTC U183C | U183C 00: Auxiliary Transmission Fluid Pump Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus |
| DTC U183E | U183E 00: Lost Communication with OnStar Module on Low Speed Communication Bus |
| DTC U1845 or U1846 | U1845 00: Drive Motor Control Module 1 Lost Communication with Hybrid Powertrain Control Module U1846 00: Drive Motor Control Module 2 Lost Communication with Hybrid Powertrain Control Module |
| DTC U1849 | U1849 00: Drive Motor Control Module 1 Lost Communication with Transmission Control Module |
| DTC U184A | U184A 00: Lost Communication with Body Control Module on Low Speed Communication Bus |
| DTC U184B | U184B 00: Lost Communication with Electronic Climate Control Module on Low Speed Communication Bus |
| DTC U184C | U184C 00: Lost Communication with Instrument Cluster on Low Speed Communication Bus |
| DTC U184D | U184D 00: Lost Communication with Radio on Low Speed Communication Bus |
| DTC U184E | U184E 00: Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed Communication Bus |
| DTC U184F | U184F 00: Electric A/C Compressor Control Module Lost Communication with Engine Control Module |
| DTC U1850 | U1850 00: Drive Motor Control Module 2 Lost Communication with Transmission Control Module |
| DTC U1858 | U1858 00: Electronic Brake Control Module Lost Communication with Hybrid Powertrain Control Module on Chassis Expansion Communication Bus |
| DTC U185A | U185A 00: Lost Communication with Battery Energy Control Module on High Voltage Energy Management Communication Bus |
| DTC U185B | U185B 00: Battery Energy Control Module Lost Communication with Hybrid Powertrain Control Module 2 on High Voltage Energy Management Communication Bus |
| DTC U185C | U185C 00: Battery Charger Control Module Lost Communication with Hybrid Powertrain Control Module 2 on High Voltage Energy Management Communication Bus |
| DTC U1860 | U1860 00: Electric A/C Compressor Control Module Lost Communication with Hybrid Powertrain Control Module 2 |
| DTC U1861 | U1861 00: Battery Charger Control Module Lost Communication with Engine Control Module |
| DTC U186A | U186A 00: Electronic Brake Control Module Lost Communication with Engine Control Module |
| DTC U186B | U186B 00: Electronic Brake Control Module Lost Communication with Transmission Control Module |
| DTC U1876 | U1876 00: Drive Motor Control Module 1 Lost Communication with Engine Control Module |
| DTC U1885 | U1885 00: Battery Energy Control Module Lost Communication with Hybrid Powertrain Control Module |
| DTC U18B9-U18BF | U18B9: Primary High Speed CAN Bus Subnet Configuration List U18BF: Secondary High Speed CAN Bus Subnet Configuration List |
| DTC U2099 | U2099 00: High Speed Communication Enable Circuit |
| DTC U2101 | U2101: CAN Bus Maximum Configuration List |
| DTC U2103 | U2103 00: Fewer Controllers On Than Programmed |
| DTC U2105-U2199 | Control Module Error. See "Control Module U Code List" under testing for this DTC. |
| DTC U2401 | U2401 00: Battery Energy Control Module Dedicated Bus 1 Off |
| DTC U2602 | U2602 00: Battery Energy Control Module Lost Communication with Hybrid Powertrain Control Module 2 |
| DTC U2603 | U2603 00: Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 1 |
| DTC U2604 | U2604 00: Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 2 |
| DTC U2605 | U2605 00: Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 3 |
| DTC U2606 | U2606 00: Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 4 |
| DTC U2608 | U2608 00: Electric A/C Compressor Control Module Lost Communication with Hybrid Powertrain Control Module |
| DTC U2609 | U2609 00: Battery Charger Control Module Lost Communication with Hybrid Powertrain Control Module |
| DTC U2611 | U2611 00: Auxiliary Transmission Fluid Pump Control Module Lost Communication with Hybrid Powertrain Control Module |
| DTC U2612 | U2612 00: Battery Charger Control Module Lost Communication with Hybrid Powertrain Control Module 2 |