Diagnostic Code Index

2010 Chevrolet Aveo LT, 4D Hatchback, StandardSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2011 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX

DTC Description
DTC B1000  B1000: Electronic Control Unit (ECU) Performance
DTC C0550  C0550 XX: Electronic Control Unit
DTC U0001  U0001 00: High Speed CAN Communication Bus
DTC U0073  U0073: Control Module Communication Bus Off
DTC U0100-U02FF  Various Modules. See Diagnostic Fault Information  under testing for this code.
DTC U0400-U05FF  Control Module Errors. To determine fault, see Control Module U Code List .
RENDER: 1.0x

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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.