A L L Diagnostic Trouble Codes ( DTC )

• Testing and Inspection
  • Diagnostic Trouble Code Descriptions
    • Cruise Control System
    • Engine Control System
    • Transmission Control Systems
  • Manufacturer Code Charts
    • Engine Control System
      • DTC 21
      • DTC 22
      • DTC 25
        • Circuit Test
        • Component Test
      • DTC 31
        • Circuit Test
        • Component Test
      • DTC 42
      • DTC 71
        • Circuit Test
        • Component Test
    • Transmission Control Systems
      • DTC 42
      • DTC 61
      • DTC 62
      • DTC 63
      • DTC 64
      • DTC 65