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, 31 & 32
    • Codes 33, 34, 35 & 42
    • Code 51
  • Manufacturer Code Charts
    • DTC 13
    • DTC 14
    • DTC 15
    • DTC 21
    • DTC 22
    • DTC 23
    • DTC 24
    • DTC 25
    • DTC 31
    • DTC 32
    • DTC 33
    • DTC 34
    • DTC 35
    • DTC 42
      • With PFI
      • With TBI
    • DTC 43
    • DTC 44
    • DTC 45
    • DTC 51
  • Related Tests, Information and Procedures
    • A Charts
      • Chart A-1 No Service Engine Soon Light
      • Chart A-2 No Code 12 Service Engine Soon Light ON Steady
      • Chart A-3 Engine Cranks But Will Not Run
      • Chart A-5 Fuel Pump Relay Circuit Diagnosis
      • Chart A-7 Fuel System Pressure Test
    • C Charts
      • Chart C-1 ECM Quad Driver Check
      • 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-4A Ignition System Check (w/Remote Coil)
      • Chart C-5 Electronic Spark Control (ESC) Check
      • Chart C-7A Exhaust Gas Recirculation (EGR) Check
      • Chart C-10 A/C Clutch Control
      • Chart C-12 Engine Cooling Fan Circuit Diagnosis