A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- Manufacturer Code Charts
- Diagnostic Notes (Read Before Proceding)
- 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-1B Output Circuits of Logic Module
- DR-1C Checking Switch Inputs to Logic Module
- DR-1D Brake Switch Input Circuit to Logic Module
- DR-1E Park/Neutral Switch Input Circuit
- DR-1F A/C Push Button Switch Input Circuit
- DR-1G Auto Idle Speed Motor Operation
- DR-1H AIS Motor Signal From Logic Module
- DR-1I AIS Motor From Logic Module
- DR-1J Automatic Idle Speed Motor Signal
- DR-1K AIS Motor at Logic Module
- DR-1K Automatic Idle Speed Motor Signal
- DR-1L Checking For Intermittent Failure
- DR-2A Fault Codes 13 &/or 14 MAP Sensor Circuit
- DR-2B MAP Sensor From Logic Module
- DR-3A Fault Code 15 Speed Sensor Circuit
- DR-3B Speed Sensor Circuit
- DR-4 Fault Code 16 Battery Voltage Sensing Circuit
- DR-5A Fault Code 21 Oxygen Sensor Circuit
- DR-5B Oxygen Sensor Circuit at Logic Module
- DR-6A Fault Code 22 Coolant Sensor Circuit
- DR-6B Coolant Sensor Circuit to Logic Module
- DR-6C Coolant Sensor Wires to Logic Module
- DR-7A Fault Code 23 Throttle Body Temperature Sensor
- DR-7B Throttle Body Temperature Sensor Signal
- DR-7C Throttle Body Temperature Sensor Wires
- DR-8A Fault Code 24 Throttle Position Sensor Circuit
- DR-8B Throttle Position Sensor Signal Circuit
- DR-8C Throttle Position Sensor Wires
- DR-8D 5 Volt Supply to TPS
- DR-9A Fault Code 25 Automatic Idle Speed Motor
- DR-9B AIS Motor For Shorted Field Winding
- DR-9C AIS Motor Control Wires For A Short Circuit
- DR-9D AIS Motor Control Wires For A Short Circuit
- DR-9E FJ2 Wire From Power Module
- DR-10A Fault Code 31 Canister Purge Solenoid Circuit
- DR-10B Canister Purge Solenoid Control Wire
- DR-10C Canister Purge Solenoid Windings
- DR-11A Fault Code 33 A/C Cut-Out Relay
- DR-11B A/C Cut-Out Relay Control Wire
- DR-11C A/C Cut-Out Relay Pull In Coil Windings
- DR-12A Fault Code 35 Radiator Fan Relay
- DR-12B Radiator Fan Relay Control Wire
- DR-12C Radiator Fan Relay Pull In Coil Windings
- DR-13 Fault Code 37 Shift Indicator Lamp
- DR-14A Fault Codes 46 or 41-46 Alternator Field
- DR-14B Alternator Field Control to Power Module
- DR-14C Alternator Field to Logic Module
- DR-15A Fault Codes 41 or 41-47 Alternator Field
- DR-15B Charging Field Control Circuit
- DR-15C Alternator Field Wire to Power Module
- DR-15D Alternator Field Circuit of Power Module
- DR-15E Alternator Field Circuit to Power Module
- DR-15F Voltage to Alternator Field Circuit
- DR-16A Fault Code 44 Battery Temperature Sensor
- DR-16B Battery Temperature Sensor Wire
- DR-16C Battery Temperature Sensor Wire
- DR-17A Calibrations Engine Coolant Temperature Sensor
- DR-17B Calibrations Throttle Position Sensor
- DR-17C Sensor Calibration MAP Sensor
- DR-17D Calibration Throttle Body Temperature Sensor
- DR-17E Calibration Battery Temperature Sensor
- DR-18 Heated Air Intake System Engine Cold
- DR-19 Checking For Fuel Fouled Spark Plugs
- DR-20A Checking Engine Coolant Temperature Sensor
- DR-20A Engine Temperature Sensor Calibration
- DR-20B Calibration Throttle Position Sensor
- DR-20C Sensor Calibration MAP Sensor
- DR-20D Calibration Throttle Body Temperature Sensor
- DR-20E Calibration Battery Temperature Sensor
- DR-21 Heated Air Intake System
- DR-22A EGR Vacuum Supply From Throttle Body
- DR-22B Vacuum From Back Pressure Valve
- DR-22C EGR Valve Operation
- DR-22D EGR Valve Vacuum Chamber For Leaks
- DR-23 Checking Secondary Ignition System
- DR-24A Checking Basic Ignition Timing
- DR-24B Checking Spark Advance
- DR-25A Fuel Supply & Return System
- DR-25B Checking For Low Fuel Pressure
- DR-25C Checking For Low Fuel Pressure
- DR-25D Checking For High Fuel Pressure
- DR-26A Oxygen Sensor Operation
- DR-26B Checking For A Rich Operating Condition
- DR-27 Driveability Problems Not Related to Engine Controls
- Heating and Air Conditioning