A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- Manufacturer Code Charts
- Code to Test Chart
- Driveability (DR) Tests
- Diagnostic Notes (Read Before Proceding)
- DR-1A CODE to DR TEST Chart (Checking for Fault Codes)
- DR-1B Output Circuits of ECM Controlled Components
- DR-1C Radiator Fan Relay For Voltage & Fan Motor
- DR-1D Radiator Fan Relay Control Circuit
- DR-1E Radiator Fan Relay Voltage at Terminal 4
- DR-1F Radiator Fan Relay Control Circuit
- DR-1G Voltage to Radiator Fan Relay Coil & Relay Coil
- DR-1H Failures Caused By Wiring &/or Connectors
- DR-2A Fault Code 11-Oxygen Solenoid Circuit
- DR-2B Oxygen Solenoid Control Circuit
- DR-2C Voltage to Oxygen Solenoid
- DR-3A Fault Code 18-Canister Purge Solenoid Circuit
- DR-3B Canister Purge Solenoid Control Circuit
- DR-3C Canister Purge Solenoid
- DR-4A Fault Code 17-Throttle Control Solenoid Circuit
- DR-4B Throttle Control Solenoid Circuit
- DR-4C Throttle Control Solenoid Circuit
- DR-5A Fault Code 13-V.O.S. Control Solenoid Circuit
- DR-5B V.O.S. Control Solenoid Circuit
- DR-5C Checking V.O.S. Control Solenoid
- DR-5D Voltage Supply to V.O.S. Solenoid
- DR-6A Fault Code 22-Oxygen Feedback System
- DR-6B Oxygen Sensor For Response to Rich Mixture
- DR-6C Oxygen Sensor Wire to Computer For Open Circuit
- DR-7A Codes 25 or 26-Coolant Sensor Circuit
- DR-7B Coolant Sensor Circuit to Computer
- DR-7C Fan Sensor Circuit of Computer
- DR-7D Fan Sensor Circuit to Computer
- DR-7E Coolant Sensor Wire For Open to Computer
- DR-8A Fault Code 28-Speed Sensor Circuit
- DR-8B Speed Sensor Circuit
- DR-8C Speed Sensor Wire For Open Circuit to Computer
- DR-8D Speed Sensor & Transaxle Drive Gear
- DR-9A Checking For No Code 88
- DR-9B Checking For No Code 88
- DR-9C Checking For No Code 88
- DR-10A Choke & Fast Idle Cam Linkage
- DR-11A Choke Vacuum Kick
- DR-12A Heated Air Intake System
- DR-13A Engine Coolant Sensor Calibration
- DR-13B Fan Coolant Sensor Calibration
- DR-14A EGR System CVSCC Valve
- DR-15A Choke Position W/Engine Running
- DR-15B Voltage Supply to Choke Control
- DR-15C Voltage at Oil Pressure Switch
- DR-15D Check Wire to Choke Control
- DR-15E Vacuum Supply to Choke Vacuum Kick Diaphragm
- DR-16A Check For Fuel Fouled Spark Plugs
- DR-17A Check Bowl Vent Systems
- DR-17B Bowl Vent System
- DR-18A Checking Carburetor Switch
- DR-19A Coolant Sensor Calibration
- DR-19B Coolant Sensor Calibration
- DR-20A Checking Choke Position
- DR-20B Voltage Supply to Choke Control
- DR-20C Voltage Supply to Oil Pressure Switch
- DR-20D Voltage Supply to Oil Pressure Switch
- DR-21A Checking Carburetor Idle Circuit
- DR-22A Checking EGR System
- DR-22B Checking Vacuum Supply to EGR Valve
- DR-22C EGR System CVSCC Valve
- DR-23A Air Switching System
- DR-23B Air Switching CVSCC Valve
- DR-24A Solenoid Kicker Electrical Circuit
- DR-24B Solenoid Kicker Vacuum Diaphragm
- DR-25A Carburetor Bowl Vent System
- DR-25B Carburetor Bowl Vent System
- DR-26A Heated Air Intake System
- DR-27A Calibration of Vacuum Transducer
- DR-28A Solenoid Kicker During Hot Restart
- DR-28B Solenoid Kicker Operation With A/C on
- DR-28C A/C Input Signal to Computer
- DR-28D A/C Input Signal to Computer
- DR-28E Vacuum Supply to Solenoid Kicker
- DR-29A Checking Secondary Ignition System
- DR-30A Check Basic Ignition Timing
- DR-30B Ignition Spark Advance
- DR-30C Vacuum Supply to Computer
- DR-31A Checking Engine Idle RPM
- DR-31B Checking Idle Mixture
- DR-31C Checking Fast Idle RPM
- DR-31D Checking Throttle Stop RPM
- DR-32 Driveability Problems Not Related to Engine Controls