Diagnostic Code Index

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION 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 C0035 or C0040  ** MULTIPLE VALUES **
DTC C0035 or U0415  ** MULTIPLE VALUES **
DTC C0055 or C003D  ** MULTIPLE VALUES **
DTC C0110  Pump Motor Circuit
DTC C0161  Antilock Brake System (ABS)/Traction Control System (TCS) Brake Switch
DTC C0201  Antilock Brake System (ABS) Enable Relay Contact Circuit
DTC C0221-C0227  ** MULTIPLE VALUES **
DTC C0228  Left Front Antilock Brake System (ABS) Channel in Release Too Long
DTC C0229  Drop Out of Both Front Speed Sensors
DTC C0235-C0237 or P0609  ** MULTIPLE VALUES **
DTC C0238  Wheel Speed Mismatch
DTC C0240  EBCM Malfunction
DTC C0241-C0254  ** MULTIPLE VALUES **
DTC C0245 or C0078  ** MULTIPLE VALUES **
DTC C0265 or C0266  ** MULTIPLE VALUES **
DTC C0267 or C0268  ** MULTIPLE VALUES **
DTC C0269 or C0274  ** MULTIPLE VALUES **
DTC C0271-C0273, C0284  ** MULTIPLE VALUES **
DTC C0279  Powertrain Configuration Not Valid
DTC C0281  Stoplamp Switch Circuit
DTC C0283  Mode Switch Circuit Malfunction
DTC C0287, P1644, or P1689  ** MULTIPLE VALUES **
DTC C0290 or C0292  ** MULTIPLE VALUES **
DTC C0291  Body Control Module (BCM) Configuration Not Valid
DTC C0297  Powertrain Configuration Data Not Received
DTC C0298 or P0856  ** MULTIPLE VALUES **
DTC C0550 or C0570  ** MULTIPLE VALUES **
DTC C0558  Calibration Data Not Programmed
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.