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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESCOMPUTER/INTEGRATING SYSTEMSDIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Diagnostic Code Index

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Diagnostic Code Index
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 B1420  Device Voltage
DTC B1440  Power Mode Master Input Circuits Mismatch
DTC B1477 or B1478 
  • DTC B1477 Retained Accessory Power Circuit Low
  • DTC B1478 Retained Accessory Power Circuit High
DTC U0073  High Speed Communication Bus
DTC U0100-U0299  Lost Communication With Control Module
DTC U1000 and U1255 
  • DTC U1000 Class 2 Data Link
  • DTC U1255 Class 2 Data Link
DTC U1001-U1254  Lost Communication With Control Module
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
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.