DTC Codes

2002 Honda Civic SiSECTION DTC Codes
WARNING: This page is about a different car, the 2006 Acura MDX, 2005 Acura MDX, 2004 Acura MDX, and 2003 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
DTC CHARTS

DTC Description
DTC P0401  EGR Insufficient Flow
DTC P0403  EGR Control Circuit Malfunction
DTC P0404  EGR Control Circuit Range/Performance Problem
DTC P0406  EGR Valve Position Sensor Circuit High Voltage
DTC P2413  EGR System Malfunction
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.