A L L Diagnostic Trouble Codes ( DTC )

• Testing and Inspection
  • Diagnostic Trouble Code Descriptions
    • Codes 13, 14 & 15
    • Codes 21, 22 & 23
    • Codes 24, 25, 32, 33, 34 & 36
    • Codes 41, 42, 43, 44 & 45
    • Codes 51, 53, 54 & 55
  • Manufacturer Code Charts
    • DTC 13
    • DTC 14
    • DTC 15
    • DTC 21
    • DTC 22
    • DTC 23
    • DTC 24
    • DTC 25
    • DTC 32
    • DTC 33
    • DTC 34
    • DTC 36
    • DTC 41
    • DTC 42
    • DTC 43
    • DTC 44
    • DTC 45
    • DTC 51
    • DTC 52
    • DTC 53
    • DTC 54
    • DTC 55
  • Related Tests, Information and Procedures
    • A Charts
      • Chart A-1 No Service Engine Soon Light
      • Chart A-2 No ALDL Data or Won't Flash Code 12
      • Chart A-3 Engine Cranks But Will Not Run
      • Chart A-7 Fuel System Diagnosis
      • Chart A-9 Cold Start Valve Test
    • C Charts
      • Chart C-1 ECM Quad Driver Check
      • Chart C-1A Park/Neutral Switch Diagnosis
      • Chart C-2A Injector Balance Test
      • Chart C-2B Idle Air Control (IAC) Valve Check
      • Chart C-3 Canister Purge Check
      • Chart C-4A Ignition System Check
      • Chart C-5 Electronic Spark Control (ESC) Check
      • Chart C-6 Air Management Check (PEDES Valve)
      • Chart C-7A Exhaust Gas Recirculation (EGR) Check
      • Chart C-8A Torque Converter Clutch (TCC) Electrical Diagnosis
      • Chart C-12 Engine Cooling Fan Circuit Diagnosis