A L L Diagnostic Trouble Codes ( DTC )

• Testing and Inspection
  • Manufacturer Code Charts
    • DTC 13
    • DTC 14
    • DTC 15
    • DTC 21
    • DTC 22
    • DTC 23
    • DTC 24
    • DTC 25
    • DTC 26
    • DTC 33
    • DTC 34
    • DTC 36
    • DTC 42
    • DTC 43
    • DTC 44
    • DTC 45
    • DTC 51
    • DTC 53
    • DTC 62
    • DTC 63
    • DTC 64
    • DTC 65
    • DTC 66
  • 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-5 Fuel System Electrical Test
      • Chart A-7 Fuel System Pressure Test
    • C Charts
      • Chart C-1A Park/Neutral Switch Diagnosis
      • Chart C-1D Manifold Absolute Pressure (MAP) Output Check
      • Chart C-1E Power Steering Pressure Switch (PSPS) Check
      • Chart C-2A Injector Balance Test
      • Chart C-2B Idle Air Control (IAC) Valve Check
      • Chart C-3 Canister Purge Check
      • Chart C-4M Integrated Direct Ignition (IDI) Misfire Diagnosis
      • Chart C-5 Electronic Spark Control (ESC) Check
      • Chart C-8A Torque Converter Clutch (TCC) Electrical Diagnosis
      • Chart C-8C Manual Trans. Shift Light Check
      • Chart C-8D Transmission Gear Switches Circuit Check
      • Chart C-10 A/C Clutch Control
      • Chart C-12 Coolant Fan Check
      • Chart C-12A Fan On at All Times
      • Chart C-12B No High Speed Fan Check
      • Chart C-12C No Low Speed Fan