Diagnostic Code Index
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1000 | B1000 00: Electronic Control Unit (ECU) Performance No Additional Information Available B1000 04: Side Object Detection Performance - RAM Failure B1000 08: Electronic Control Unit (ECU) Performance Signal Invalid B1000 12: Electronic Control Unit (ECU) Performance Below Minimum Threshold B1000 31: Electronic Control Unit (ECU) General Checksum Problem B1000 32: Electronic Control Unit (ECU) General Memory Failure B1000 33: Electronic Control Unit (ECU) Performance Special Memory Failure B1000 34: Electronic Control Unit (ECU) Performance RAM Integrity B1000 35: Electronic Control Unit (ECU) Performance ROM Integrity B1000 36: Electronic Control Unit (ECU) Performance EEPROM Integrity B1000 37: Electronic Control Unit (ECU) Performance Watchdog / Safety Failure B1000 38: Electronic Control Unit (ECU) Performance Supervision Software Failure B1000 39: Electronic Control Unit (ECU) Performance Internal Electronic Failure B1000 43: Electronic Control Unit (ECU) Performance EEPROM Error B1000 46: Side Object Detection Performance - Invalid Configuration B1000 56: Electronic Control Unit (ECU) Performance Allowable Number of Transitions / Events Exceeded B1000 57: Electronic Control Unit (ECU) Performance B1000 73: Electronic Control Unit (ECU) Performance Parity Error B1000 0F: Electronic Control Unit (ECU) Performance Erratic B1000 2B: Electronic Control Unit (ECU) Performance Missing Reference B1000 2C: Electronic Control Unit Performance Reserved B1000 3B: Electronic Control Unit (ECU) Performance Internal Self Test Failed B1000 3C: Electronic Control Unit (ECU) Performance Internal Communications Failure B1000 4A: Side Object Detection Performance - PROM Checksum Error B1000 F0: Side Object Detection RF Transmit Chain Failed B1000 F1: Side Object Detection RF Receive Chain Failed B1000 F2: Side Object Detection Frequency Calibration Failure B1000 F3: Side Object Detection Inter-Processor Communication Failed |
| DTC B1001 | B1001 00: Option Configuration Error B1001 45: Option Configuration Error Variant Not Programmed B1001 46: Option Configuration Error B1001 4B: Option Configuration Error Calibration Not Learned |
| DTC B101D (HP2 Air Conditioning Control Module) | B101D XX: ECU Hardware |
| DTC B101D (except HP2 A/C Control Module) | B101D XX: ECU Hardware |
| DTC B137A | B137A 01: Hybrid Accessory Wake Up Circuit - Short to Battery B137A 06: Hybrid Accessory Wake Up Circuit - Short to Ground or Open |
| DTC B137B | B137B 06: Accessory Power Module Wake Up Circuit - short to ground or open |
| DTC C0550 | C0550 00: Electronic Control Unit (ECU) Performance C0550 31: Electronic Control Unit (ECU) Performance C0550 32: ECU Performance General Memory Failure C0550 34: ECU Malfunction RAM Failure C0550 35: ECU Malfunction ROM Failure C0550 36: ECU Malfunction EEPROM Failure C0550 37: ECU Malfunction Watch Dog failure C0550 38: ECU Performance Supervision Software Failure C0550 39: ECU Performance Internal Electronic Failure/Discard C0550 4B: ECU Internal Fault |
| DTC C056D | C056D XX: Electronic Control Unit Hardware |
| DTC C056E | C056E XX: Electronic Control Unit Software |
| 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 Communication Bus B Off |
| DTC U0100-U02FF (with HP2) | The serial data circuit is the means by which the control modules in the vehicle communicate with each other. Once the scan tool is connected to the serial data circuit through the DLC, the scan tool can be used to monitor each control module for diagnostic purposes and to check for diagnostic trouble codes (DTCs). When the ignition switch is in RUN, each control module communicating on the serial data circuit sends a state of health (SOH) message to ensure that the control module is operating properly. When a control module stops communicating on the serial data circuit, for example if the module loses power or ground, the SOH message it normally sends on the serial data circuit disappears. Other control modules on the serial data circuit, which expect to receive that SOH message, detect its absence; those control modules in turn set a DTC associated with the loss of SOH of the non-communicating control module. The DTC is unique to the control module which is not communicating and one or more control modules may set the same exact code. A loss of serial data communications DTC does not represent a failure of the control modules that contain the stored code. |
| DTC U0100-U02FF (without HP2) | The serial data circuit is the means by which the control modules in the vehicle communicate with each other. Once the scan tool is connected to the serial data circuit through the DLC, the scan tool can be used to monitor each control module for diagnostic purposes and to check for diagnostic trouble codes (DTCs). When the ignition switch is in RUN, each control module communicating on the serial data circuit sends a state of health (SOH) message to ensure that the control module is operating properly. When a control module stops communicating on the serial data circuit, for example if the module loses power or ground, the SOH message it normally sends on the serial data circuit disappears. Other control modules on the serial data circuit, which expect to receive that SOH message, detect its absence; those control modules in turn set a DTC associated with the loss of SOH of the non-communicating control module. The DTC is unique to the control module which is not communicating and one or more control modules may set the same exact code. A loss of serial data communications DTC does not represent a failure of the control modules that contain the stored code. |
| DTC U1500, U1511, U1512, or U1513 | U1500 01: Inter-Device Dedicated Bus 1 Short to Battery U1500 02: Inter-Device Dedicated Bus 1 Short to Ground U1500 31: Electronic Control Unit (ECU) Performance General Checksum Failure U1511 00: Inter-device Dedicated Bus Lost Communication With Device 1 U1512 00: Inter-device Dedicated Bus Lost Communication With Device 2 |
| DTC U180F | U180F: Control Module Communication Bus B Off |
| DTC U1812 | U1812 00: Battery Energy Control Module Bus B High Speed Communication Enable Circuit Low |
| DTC U1813 | U1813 00: Battery Energy Control Module Bus B High Speed Communication Enable Circuit High |
| DTC U1814 | U1814 00: Powertrain High Speed Communication Enable Circuit |
| DTC U1815 | U1815 00: Lost Communication With Drive Motor Control Module "A" on Bus "B" |
| DTC U1816 | U1816 00: Lost Communication With Drive Motor Control Module "B" on Bus "B" |
| DTC U1817 | U1817 00: Lost Communication With Hybrid Powertrain Control Module on Bus "B" |
| DTC U1818 | U1818 00: Lost Communication With ECM/PCM A on Bus B |
| DTC U1820 | U1820 00: Lost Communication with Brake System Control Module on Bus B |
| DTC U1821 | U1821 00: Lost Communication With DC to DC Converter Control Module A on Bus B |
| DTC U1826 | U1826 71: Lost Communication With Multi-Axis Acceleration Sensor Module on Bus "B" Invalid Data U1826 72: Lost Communication With Multi-Axis Acceleration Sensor Module on Bus "B" Message Counter Incorrect U1826 7F: Lost Communication With Multi-Axis Acceleration Sensor Module on Bus "B" Bus Signal Erratic |
| DTC U1829 | U1829 00: Lost Communication with Gateway A on Bus B |
| DTC U182A | U182A 00: Lost Communication With Accessory Power Module |
| DTC U1842 | U1842: Lost Communication With ECM/PCM |
| DTC U1843 | U1843: Lost Communication With ECM/PCM |
| DTC U1862 | U1862 00: Battery Energy Control Module Lost Communication with Serial Data Gateway Module |
| DTC U1866 | U1866 00: Battery Energy Control Module Lost Communication With Body Control Module |
| DTC U186A | U186A: Lost Communication With Transfer Case Control Module |
| DTC U186B | U186B: Lost Communication With TCM |
| DTC U1875 | U1875 00: Drive Motor A Control Module Lost Communication With Battery Energy Control Module |
| DTC U1876 | U1876 00: Drive Motor Control Module A Lost Communication With Engine Control Module (ECM) |
| DTC U1878 | U1878 00: Drive Motor B Control Module Lost Communication With Battery Energy Control Module |
| DTC U1879 | U1879 00: Drive Motor Control Module B Lost Communication With Engine Control Module (ECM) |
| DTC U1885 | U1885 00: Battery Energy Control Module Lost Communication With Hybrid Powertrain Control Module |
| DTC U1886 | U1886 00: Battery Energy Control Module Lost Communication With Engine Control Module (ECM)/Powertrain Control Module (PCM) |
| DTC U1888 | U1888 00: Lost Communication with Battery Pack |
| DTC U189A | U189A 00: DC to DC Converter Control Module A Lost Communication With Hybrid Powertrain Control Module |
| DTC U2099 | U2099 00: High Speed Communication Enable Circuit |
| DTC U209A | U209A 00: High Speed Communication Enable Circuit Low |
| DTC U209D | U209D 00: Battery Energy Control Module High Speed Communication Enable Circuit High |
| DTC U2100 | U2100 00: Controller Area Network (CAN) Bus Communication |
| DTC U2103 | U2103 00: Fewer Controllers On Than Programmed |
| DTC U2105-U2199 | U2142 00: Lost Communication With Yaw Rate Sensor (YRS) |