A L L Diagnostic Trouble Codes ( DTC )

• Testing and Inspection
  • Manufacturer Code Charts
    • DTC 13
    • DTC 14
    • DTC 15
    • DTC 21
    • DTC 22
    • DTC 24
    • DTC 32
    • DTC 33
    • DTC 34
    • DTC 42
    • DTC 43
    • DTC 44
    • DTC 45
    • DTC 51
    • DTC 52
    • DTC 54
    • DTC 55
  • Related Tests, Information and Procedures
    • A Charts
      • - When to Use These Charts
      • Chart A-1 No Service Engine Soon Light
      • Chart A-2 Code 12 Will Not Flash
      • Chart A-3 Engine Cranks But Will Not Run
      • Chart A-7 Fuel System Diagnosis
    • C Charts
      • - When to Use This Section
      • Chart C-1A-1 Park/Neutral Switch Diagnosis
      • Chart C-1B Crank Signal Diagnosis
      • Chart C-1D Manifold Absolute Pressure (MAP) Output Check
      • Chart C-2C Idle Air Control: VIN Z & VIN E
      • Chart C-3 Canister Purge Valve: VIN Z (4.3L) VIN E (5.0L)
      • Chart C-4B Ignition System Check: VIN Z (4.3L)
      • Chart C-5 Electronic Spark Control Check: 87-88 VIN Z 88 VIN E
      • Chart C-6 Air Management Check: VIN Z (4.3L)
      • Chart C-7 EGR Check
      • Chart C-8A Transmission Converter Clutch: 87-88 VIN Z, 88 VIN E