A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- Manufacturer Code Charts
- Code to Test Chart
- Driveability (DR) Tests
- DR-1A CODE to DR TEST Chart (Checking for Fault Codes)
- DR-1B Output Circuits of ECM Controlled Components
- DR-1C Radiator Fan Motor Ground Wire For Open
- DR-1D Voltage to Radiator Fan Relay Contact Points
- DR-1E Check Green Wire Between Fan Relay & Fan Motor
- DR-1F Checking Fan Motor
- DR-1G Failures Caused By Wiring &/or Connectors
- DR-2A Fault Code 11-Oxygen Solenoid Circuit
- DR-2B Oxygen Solenoid Control Circuit
- DR-2C Oxygen Solenoid Control Circuit
- DR-3A Fault Code 13-V.O.S. Control Solenoid Circuit
- DR-3B V.O.S. Control Solenoid Control Circuit
- DR-3C V.O.S. Control Solenoid Circuit
- DR-4A Fault Code 16-Radiator Fan Relay
- DR-4B Radiator Fan Relay Control Circuit
- DR-4C Voltage Supply to Radiator Fan Relay Coil
- DR-4D Voltage Supply to Radiator Fan Relay Coil
- DR-4E Radiator Fan Relay Pull In Coil Circuit
- DR-5A Fault Code 17-Throttle Control Solenoid
- DR-5B Throttle Control Solenoid Control Circuit
- DR-5C Throttle Control Solenoid
- DR-6A Fault Code 18-Canister Purge Solenoid Circuit
- DR-6B Canister Purge Solenoid Control Wire
- DR-6C Canister Purge Solenoid Control Circuit
- DR-7A Fault Code 22-Oxygen Feedback System (Lean)
- DR-7B Checking Computer Control Circuit
- DR-7C Oxygen Feedback System Control Solenoid
- DR-7D Oxygen Sensor Wire to Computer For Open
- DR-8A Fault Code 23-Oxygen Feedback Locked on Rich
- DR-8B Computer Control Circuit
- DR-8C Oxygen Feedback System Control Solenoid
- DR-9A Fault Codes 25 or 26-Coolant Sensor Circuit
- DR-9B Coolant Sensor Circuit to Computer
- DR-9C Fan Sensor Circuit of Computer
- DR-9D Fan Sensor Circuit to Computer
- DR-9E Coolant Sensor Wire For Open to Computer
- DR-10A Fault Code 27-Vacuum Transducer Circuit
- DR-11A Fault Code 28-Speed Sensor Circuit
- DR-11B Speed Sensor Circuit to Computer
- DR-11C Speed Sensor Wire For Open Circuit
- DR-11D Speed Sensor & Transaxle Drive Gear
- DR-12A Fault Code 34-Starter Relay
- DR-13A Checking For No Code 88
- DR-13B Checking For No Code 88
- DR-13C Checking For No Code 88
- DR-14A Check Choke & Fast Idle Cam Linkage
- DR-15A Choke Vacuum Kick
- DR-16A Heated Air Intake System
- DR-17A Engine Coolant Sensor Calibration
- DR-17B Fan Coolant Sensor Calibration
- DR-18A EGR System CVSCC Valve
- DR-19A Choke Position W/Engine Running
- DR-19B Voltage Supply to Choke Control
- DR-19C Voltage at Oil Pressure Switch
- DR-19D Checking Wire to Choke Control
- DR-19E Vacuum Supply to Choke Vacuum Kick Diaphragm
- DR-20A Checking For Fuel Fouled Spark Plugs
- DR-21A Checking Bowl Vent System
- DR-21B Checking Bowl Vent System
- DR-22A Checking Carburetor Switch
- DR-23A Coolant Sensor Calibration
- DR-23B Coolant Sensor Calibration
- DR-24A Checking Choke Position
- DR-24B Voltage Supply to Choke Control
- DR-24C Voltage Supply to Oil Pressure Switch
- DR-24D Voltage Supply to Oil Pressure Switch
- DR-25A Checking Carburetor Idle Circuit
- DR-26A Checking EGR System
- DR-26B Vacuum Supply to EGR Valve
- DR-26C EGR System CVSCC Valve
- DR-27A Air Switching System
- DR-27B Air Switching CVSCO Valve
- DR-28A Solenoid Kicker Electrical Circuit
- DR-28B Solenoid Kicker Vacuum Diaphragm
- DR-29A Carburetor Bowl Vent System
- DR-29B Carburetor Bowl Vent System
- DR-30A Heated Air Intake System
- DR-31A Solenoid Kicker During Hot Restart
- DR-31B Solenoid Kicker Operation With A/C on
- DR-31C A/C Input Signal to Computer
- DR-31D A/C Input Signal to Computer
- DR-31E Vacuum Supply to Solenoid Kicker
- DR-32A Calibration of Vacuum Transducer
- DR-33A Checking Secondary Ignition System
- DR-34A Check Basic Ignition Timing
- DR-34B Checking Ignition Spark Advance
- DR-35A Checking Engine Idle RPM
- DR-35B Checking Idle Mixture
- DR-35C Checking Fast Idle RPM
- DR-35D Checking Throttle Stop RPM
- DR-36 Driveability Problems Not Related to Engine Controls