A03-077 October 24, 2003 Applies To: 2001–02 Civic DX, HX, LX, and EX – ALL MIL Is On With “Unknown” DTC SYMPTOM The MIL is on, and when you try to retrieve the DTC with the HDS, “Unknown” is displayed. PROBABLE CAUSE The ECM/PCM software does not properly communicate the DTC … Read more
