A L L Diagnostic Trouble Codes ( DTC )

• Testing and Inspection
  • Manufacturer Code Charts
    • DTC 13
    • DTC 14
    • DTC 15
    • DTC 21
      • Manual Trans
      • Auto Trans
    • DTC 21 and 22
    • DTC 22
    • DTC 23
    • DTC 24
    • DTC 25
    • DTC 31
    • DTC 32
    • DTC 41
      • LSI Conventional Ignition System
      • ESA Ignition Circuit System
    • DTC 42
    • DTC 51
  • Related Tests, Information and Procedures
    • A Charts
      • Chart A-1 No Check Engine Light
      • Chart A-2 Service Engine Soon Light ON Steady
      • Chart A-3 Engine Cranks But Will Not Run
        • ESA Ignition System (Without Vacuum Advance)
        • LSI Conventional Ignition System (With Vacuum Advance)
      • Chart A-5 Engine Cranks But Won't Start (Fuel System)
      • Chart A-7 Fuel System Diagnosis
        • Part 1 of 2
        • Part 2 of 2
    • C Charts