Diagnostic Trouble Codes

1 article

Close-up of a car dashboard with a 'Check Engine' light on, and a mechanic using a diagnostic scanner showing a DTC.

How to Understand Diagnostic Trouble Codes (DTCs) for Your Car

A single alphanumeric code, like P0462, can instantly tell you your car has a 'severity 2' fuel-level sensor malfunction, demanding immediate attention and potentially saving hundreds in diagnostic fe

Luis Ortega·April 19, 2026