Contents Wiring diagrams Section: Communication Devices All sections

Data Communication System - DTC Index Cadillac ELR I

DIAGNOSTIC CODE INDEX

DTCDescription
DTC B1000DTC B1000 Electronic Control Unit
DTC B1001DTC B1001 Option Configuration
DTC B1016DTC B1016 Vehicle Identification Number Information Not Programmed
DTC B101DDTC B101D Electronic Control Unit Hardware
DTC B101EDTC B101E Electronic Control Unit Software
DTC C056DDTC C056D Electronic Control Unit Hardware
DTC C056EDTC C056E Electronic Control Unit Software
DTC C078ADTC C078A Tire Pressure Indicator Module
DTC P0601-P0606, P060A, P062F, or P262BDTC P0601 Control Module Read Only Memory Performance DTC P0602 Control Module Not Programmed DTC P0603 Control Module Long Term Memory Reset DTC P0604 Control Module Random Access Memory Performance DTC P0605 Control Module Programming Read Only Memory Performance DTC P0606 Control Module Processor Performance DTC P060A Control Module Monitoring Processor Performance DTC P062F Control Module Long Term Memory Performance DTC P262B Control Module Power Off Timer Performance
DTC P06E4 (Hybrid/EV Powertrain Control Module 2)DTC P06E4 Control Module Wake-Up Circuit Performance
DTC P0A1F, P1A05, or P1A06DTC P0A1F Battery Energy Control Module Performance DTC P1A05 Battery Energy Control Module Random Access Memory DTC P1A06 Battery Energy Control Module Read Only Memory
DTC P16B7DTC P16B7 Electric A/C Compressor Control Module Wake-Up Circuit Performance
DTC P16B8-P16BADTC P16B8 Electric A/C Compressor Control Module Random Access Memory Performance DTC P16B9 Electric A/C Compressor Control Module Read Only Memory Performance DTC P16BA Electric A/C Compressor Control Module Long Term Memory Performance
DTC P16C1-P16C5DTC P16C1 Battery Charger Control Module Read Only Memory Performance DTC P16C2 Battery Charger Control Module Random Access Memory Performance DTC P16C3 Battery Charger Control Module Long Term Memory Performance DTC P16C4 Battery Charger Control Module Serial Peripheral Interface (SPI) Bus 1 DTC P16C5 Battery Charger Control Module Serial Peripheral Interface (SPI) Bus 2
DTC P16C6DTC P16C6 Battery Charger Control Module Wake-Up Circuit Performance
DTC P1E8E-P1E91DTC P1E8E Hybrid/EV Battery Interface Control Module 1 Performance DTC P1E8F Hybrid/EV Battery Interface Control Module 1 Random Access Memory Performance DTC P1E90 Hybrid/EV Battery Interface Control Module 1 Read Only Memory Performance DTC P1E91 Hybrid/EV Battery Interface Control Module 1 Long Term Memory Performance
DTC P1E94-P1E97DTC P1E94 Hybrid/EV Battery Interface Control Module 2 Performance DTC P1E95 Hybrid/EV Battery Interface Control Module 2 Random Access Memory Performance DTC P1E96 Hybrid/EV Battery Interface Control Module 2 Read Only Memory Performance DTC P1E97 Hybrid/EV Battery Interface Control Module 2 Long Term Memory Performance
DTC P1E9A-P1E9DDTC P1E9A Hybrid/EV Battery Interface Control Module 3 Performance DTC P1E9B Hybrid/EV Battery Interface Control Module 3 Random Access Memory Performance DTC P1E9C Hybrid/EV Battery Interface Control Module 3 Read Only Memory Performance DTC P1E9D Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance
DTC P1EA0-P1EA3DTC P1EA0 Hybrid/EV Battery Interface Control Module 4 Performance DTC P1EA1 Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance DTC P1EA2 Hybrid/EV Battery Interface Control Module 4 Read Only Memory Performance DTC P1EA3 Hybrid/EV Battery Interface Control Module 4 Long Term Memory Performance
DTC P1EB1DTC P1EB1 Hybrid/EV Battery Interface Control Module Software Incompatible
DTC P1EB2-P1EB5 or P1FA6-P1FAADTC P1EB2 Hybrid/EV Battery Interface Control Module 1 Not Programmed DTC P1EB3 Hybrid/EV Battery Interface Control Module 2 Not Programmed DTC P1EB4 Hybrid/EV Battery Interface Control Module 3 Not Programmed DTC P1EB5 Hybrid/EV Battery Interface Control Module 4 Not Programmed
DTC P1EB9DTC P1EB9 High Voltage Energy Management Communication Bus Enable Circuit
DTC P1EC1 or P1EC2DTC P1EC1 Battery Energy Control Module High Voltage Energy Management Communication Bus Enable Circuit Low Voltage
DTC P1EF8DTC P1EF8 Battery Charger Control Module High Voltage Energy Management Communication Bus Enable Circuit Low Voltage
DTC P1F06-P1F09DTC P1F06 Hybrid/EV Battery Interface Control Module 1 Processor Performance DTC P1F07 Hybrid/EV Battery Interface Control Module 2 Processor Performance DTC P1F08 Hybrid/EV Battery Interface Control Module 3 Processor Performance DTC P1F09 Hybrid/EV Battery Interface Control Module 4 Processor Performance
DTC P262BDTC P262B Control Module Power Off Timer Performance
DTC U0020DTC U0020 Low Speed CAN Bus
DTC U0028DTC U0028 MOST Bus
DTC U0029DTC U0029 MOST Bus Performance
DTC U0073 or U2100DTC U0073 Control Module Communication Bus A Off DTC U2100 CAN Bus Communication
DTC U0074DTC U0074 Control Module Communication Powertrain Expansion CAN Bus Off
DTC U0077DTC U0077 Control Module Communication Chassis Expansion CAN Bus Off
DTC U007ADTC U007A Control Module Communication High Voltage Energy Management CAN Bus Off
DTC U0078DTC U0078 Control Module Communication Low Speed CAN Bus Off
DTC U0100-U02FFSee Control Module U Code List
DTC U0300-U0336See Control Module U Code List
DTC U0400-U05FFSee Control Module U Code List
DTC U1500-U15FFSee Control Module U Code List
DTC U1793DTC U1793 14V Power Module Lost Communication with Hybrid Powertrain Control Module on Powertrain Expansion Communication Bus
DTC U1795DTC U1795 14V Power Module Powertrain Expansion Communication Bus Off
DTC U179ADTC U179A Lost Communication with Hybrid Powertrain Control Module 2
DTC U1803DTC U1803 Lost Communication with Hybrid Powertrain Control Module 2
DTC U1806DTC U1806 Battery Energy Control Module High Voltage Energy Management CAN Bus Off
DTC U1807DTC U1807 Battery Charger Control Module High Voltage Energy Management CAN Bus Off
DTC U180ADTC U180A Electric A/C Compressor Control Module High Speed CAN Bus Off
DTC U180BDTC U180B Battery Energy Control Module High Speed CAN Bus Off
DTC U180CDTC U180C Battery Charger Control Module High Speed CAN Bus Off
DTC U180DDTC U180D Electronic Brake Control Module Chassis Expansion CAN Bus Off
DTC U1814DTC U1814 Powertrain Wake-Up Communication Circuit
DTC U1817DTC U1817 Lost Communication with Hybrid Powertrain Control Module on Powertrain Expansion CAN Bus
DTC U1818DTC U1818 Lost Communication with Engine Control Module on Powertrain Expansion Communication Bus
DTC U1821DTC U1821 Lost Communication with 14V Power Module on Powertrain Expansion Communication Bus
DTC U182DDTC U182D Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus
DTC U182E or U182FDTC U182E Drive Motor Control Module 1 Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus DTC U182F Drive Motor Control Module 2 Lost Communication with Hybrid Powertrain Control Module 2 on Powertrain Expansion Communication Bus
DTC U1833DTC U1833 Lost Communication with Electronic Brake Control Module on Chassis Expansion CAN Bus
DTC U1838DTC U1838 Lost Communication with Battery Charger Control Module on High Voltage Energy Management CAN Bus
DTC U1839DTC U1839 Auxiliary Transmission Fluid Pump Control Module Lost Communication with Engine Control Module
DTC U183BDTC U183B Auxiliary Transmission Fluid Pump Control Module Lost Communication with Transmission Control Module
DTC U183CDTC U183C Auxiliary Transmission Fluid Pump Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus
DTC U183EDTC U183E Lost Communication with Telematics Communication Interface Control Module on Low Speed CAN Bus
DTC U1845 or U1846DTC U1845 Drive Motor Control Module 1 Lost Communication with Hybrid Powertrain Control Module DTC U1846 Drive Motor Control Module 2 Lost Communication with Hybrid Powertrain Control Module
DTC U1849DTC U1849 Drive Motor Control Module 1 Lost Communication with Transmission Control Module
DTC U184ADTC U184A Lost Communication with Body Control Module on Low Speed CAN Bus
DTC U184BDTC U184B Lost Communication with Remote Heater and Air Conditioning Control Module on Low Speed CAN Bus
DTC U184CDTC U184C Lost Communication with Instrument Cluster on Low Speed CAN Bus
DTC U184DDTC U184D Lost Communication with Radio on Low Speed CAN Bus
DTC U184EDTC U184E Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus
DTC U1850DTC U1850 Drive Motor Control Module 2 Lost Communication with Transmission Control Module
DTC U1858DTC U1858 Electronic Brake Control Module Lost Communication with Hybrid Powertrain Control Module on Chassis Expansion CAN Bus
DTC U185ADTC U185A Lost Communication with Battery Energy Control Module on High Voltage Energy Management CAN Bus
DTC U185BDTC U185B Battery Energy Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 on High Voltage Energy Management CAN Bus
DTC U185CDTC U185C Battery Charger Control Module Lost Communication with Hybrid Powertrain Control Module 2 on High Voltage Energy Management CAN Bus
DTC U1860DTC U1860 Electric A/C Compressor Control Module Lost Communication with Hybrid Powertrain Control Module 2
DTC U1861DTC U1861 Battery Charger Control Module Lost Communication with Engine Control Module
DTC U186ADTC U186A Electronic Brake Control Module Lost Communication with Engine Control Module
DTC U186BDTC U186B Electronic Brake Control Module Lost Communication with Transmission Control Module
DTC U1876DTC U1876 Drive Motor Control Module 1 Lost Communication with Engine Control Module
DTC U1879DTC U1879 Drive Motor Control Module 2 Lost Communication with Engine Control Module
DTC U1885DTC U1885 Battery Energy Control Module Lost Communication with Hybrid/EV Powertrain Control Module
DTC U18A6DTC U18A6 Lost Communication with Right Object Detection Control Module on Dedicated Bus 1
DTC U18B9-U18BFDTC U18B9 Primary High Speed CAN Bus Subnet Configuration List DTC U18BF Secondary High Speed CAN Bus Subnet Configuration List
DTC U2098DTC U2098 00 MOST Communication Enable Circuit Malfunction DTC U2098 02 MOST Communication Enable Circuit Short to Ground
DTC U2099DTC U2099 High Speed Communication Enable Circuit
DTC U2613-U2615DTC 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
DTC U2401DTC U2401 Battery Energy Control Module Dedicated Bus 1 Off
DTC U2602DTC U2602 Battery Energy Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2
DTC U2603DTC U2603 Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 1
DTC U2604DTC U2604 Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 2
DTC U2605DTC U2605 Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 3
DTC U2606DTC U2606 Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 4
DTC U2608DTC U2608 Electric A/C Compressor Control Module Lost Communication with Hybrid Powertrain Control Module
DTC U2609DTC U2609 Battery Charger Control Module Lost Communication with Hybrid Powertrain Control Module
DTC U2611DTC U2611 Auxiliary Transmission Fluid Pump Control Module Lost Communication with Hybrid Powertrain Control Module
DTC U2612DTC U2612 Battery Charger Control Module Lost Communication with Hybrid Powertrain Control Module 2

DIAGNOSTIC CODE INDEX