Diagnostic Code Index

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. 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 B1001	Option Configuration Error
DTC B1004	Electronic Control Unit Identification Circuit
DTC B1007	EEPROM Read/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 B1370	Device Ignition 1 (ON and START) Circuit
DTC B1380	Device Ignition ACCESSORY Circuit
DTC B1385	Device Ignition START Circuit
DTC B1390	Device Voltage Reference Input Circuit
DTC B1475	Retained Accessory Power Circuit
DTC C0550	Electronic Control Unit (ECU) Performance
DTC P2535	Ignition 1 Switch Circuit High Voltage
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 and U1255	DTC U1000 Class 2 Data Link Malfunction DTC U1255 Lost Communications
DTC U1001-U1254	Lost communication With XXX Module (See 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
DTC U2100	Controller Area Network (CAN) Bus Communication
DTC U2105-U2199	DTC U2105 Lost Communications With Engine Control System DTC U2107 Lost Communications With Body Control System DTC U2108 Lost Communications With ABS/TCS Control System