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Diagnostic Code Index

WARNING: This page is about a different car, the 2006 Cadillac CTS. 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 B1013  Calibration Read Only Memory (ROM) Checksum Error
DTC B1014  Program Read Only Memory (ROM) Checksum Error
DTC B1372  Device Ignition 1 Circuit Low
DTC B1382  Device Ignition Accessory Circuit Low
DTC B1390  Device Voltage Reference Input Circuit
DTC U0001  High Speed CAN Communication Bus
DTC U0100-U0299 
  • DTC U0100 Lost Communication With Engine Control Module (ECM)
  • DTC U0101 Lost Communication With Transmission Control Module (TCM)
DTC U1000  Class 2 Data Link Malfunction
DTC U1001-U1254  Module Communication Failure (See Tabe In DTC Testing)
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
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