A L L Diagnostic Trouble Codes ( DTC )

• Testing and Inspection
  • Manufacturer Code Charts
    • DTC 12
    • DTC 13
    • DTC 14
    • DTC 15
    • DTC 21
    • DTC 22
    • DTC 23
    • DTC 25
    • DTC 42
    • DTC 44
    • DTC 45
    • DTC 51
    • DTC 53
    • DTC 54
    • DTC 55
  • Related Tests, Information and Procedures
    • A Charts
      • Chart A-1 Dwell Fixed Under 15 Degrees
      • Chart A-2 Dwell Fixed Between 15 and 50 Degrees
      • Chart A-3 Dwell Fixed Over 50 Degrees
      • Chart A-4 WOT Enrichment Circuit Check
      • Chart A-5 Check Engine Light Inoperative
      • Chart A-6 Check Engine Light on at All Times or No Code 12
      • Chart A-7 Fuel Cut-Off System Operational Check
    • C Charts
      • Chart C-1A Throttle Position Sensor Check
      • Chart C-1B Idle Switch Check
      • Chart C-2 Fuel Cut-Off Solenoid Check
      • Chart C-4 Ignition System Check
      • Chart C-6 Air Vacuum Solenoid Valve Check
      • Chart C-8A Shift Light Inoperative
      • Chart C-8B Shift Light ON at All Times
      • Chart C-9 EFE Operational Check
      • Chart C-16A/B Altitude Switch Circuit Check