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Diagnostic Code Index

WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 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  Electronic Control Unit (ECU) Performance
DTC B1004  Keep Alive Memory (KAM) Reset
DTC B1007  EEPROM Write Error
DTC B1009  EEPROM Checksum Mismatch
DTC B1397  short to ground in the steering wheel controls supply voltage circuit
DTC B1422  Ignition 0 voltage mismatch
DTC B1440  Power Mode Master Input Circuits Mismatch
DTC U0073  High Speed CAN Communication Bus
DTC U0100-U0299 (Diesel Engine) 
  • DTC U0100 Lost Communication With Engine Control Module (ECM)
  • DTC U0101 Lost Communication With Transmission Control Module (TCM)
  • DTC U0105 Lost Communication With Fuel Injector Control Module (FICM)
  • DTC U0106 Lost Communication With Glow Plug Control Module (GPCM)
DTC U0100-U0299 (HP2) 
  • DTC U0111 Lost Communication With Energy Storage Control Module (ESCM)
  • DTC U0120 Lost Communication With Starter/Generator Control Module (SGCM)
  • DTC U0131 Lost Communication With Electro-Hydraulic Power Steering (EHPS) Module
  • DTC U0293 Lost Communication With Hybrid Control Module (HCM)
DTC U1000  Class 2 Data Link Malfunction
DTC U1001-U1254  Module U1XXX Error
DTC U1300, U1301, or U1305 
  • DTC U1300 Class 2 Data Link Low
  • DTC U1301 Class 2 Data Link High
  • DTC U1305 Class 2 Data Link Low or High
DTC U1881-U1899 
  • DTC U1881 Electro-Hydraulic Power Steering (EHPS) Module Lost Communication With Energy Storage Control Module (ESCM)
  • DTC U1882 Energy Storage Control Module (ESCM) Lost Communication With Electro-Hydraulic Power Steering (EHPS) Module
  • DTC U1883 Hybrid Control Module (HCM) Lost Communication With Driver Door Module (DDM)
  • DTC U1884 Hybrid Control Module (HCM) Lost Communication With Passenger Door Module (PDM)
  • DTC U1885 Energy Storage Control Module (ESCM) Lost Communication With Hybrid Control Module (HCM)
  • DTC U1886 Energy Storage Control Module (ESCM) Lost Communication With Powertrain Control Module (PCM)
  • DTC U1887 Energy Storage Control Module (ESCM) Lost Communication With Starter/Generator Control Module (SGCM)
  • DTC U1888 Hybrid Control Module (HCM) Lost Communication With Energy Storage Control Module (ESCM)
  • DTC U1889 Hybrid Control Module (HCM) Lost Communication With Body Control Module (BCM)
  • DTC U1890 Hybrid Control Module (HCM) Lost Communication With HVAC Control Module
  • DTC U1891 Hybrid Control Module (HCM) Lost Communication With Instrument Panel Cluster (IPC)
  • DTC U1892 Hybrid Control Module (HCM) Lost Communication With Electro-Hydraulic Power Steering (EHPS) Module
  • DTC U1893 Hybrid Control Module (HCM) Lost Communication With Powertrain Control Module (PCM)
  • DTC U1894 Hybrid Control Module (HCM) Lost Communication With Starter/Generator Control Module (SGCM)
  • DTC U1895 Electro-Hydraulic Power Steering (EHPS) Module Lost Communication With Powertrain Control Module (PCM)
  • DTC U1896 Electro-Hydraulic Power Steering (EHPS) Module Lost Communication With Starter/Generator Control Module (SGCM)
  • DTC U1897 Starter/Generator Control Module (SGCM) Lost Communication With Energy Storage Control Module (ESCM)
  • DTC U1898 Starter/Generator Control Module (SGCM) Lost Communication With Hybrid Control Module (HCM)
  • DTC U1899 Starter/Generator Control Module (SGCM) Lost Communication With Powertrain Control Module (PCM)