A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- Manufacturer Code Charts
- Code to Test Chart
- 1, 2 and 3 Digit Codes
- Driveability (DR) Tests
- DR-1A CODE to DR TEST Chart (Checking for Fault Codes)
- DR-2 Testing Oxygen Sensor Circuit
- DR-3A Testing Air Flow Sensor Circuit
- DR-4A Testing Air Temp. Sensor Circuit
- DR-5A Testing Throttle Position Sensor Circuit
- DR-6A Testing Engine Coolant Sensor
- DR-7A Testing #1 Cylinder Top Dead Center Sensor
- DR-8A Testing Vehicle Speed Sensor
- DR-9A Testing Barometric Pressure Sensor Circuit
- DR-10A Testing Detonation Sensor (Turbo)
- DR-11A Testing Fuel Injector Circuit
- DR-12A Testing Fuel Pump Sense
- DR-13A Testing EGR Temp. Sensor (California)
- DR-14A Testing Ignition Coil
- DR-15A Testing Switches
- DR-16A Testing Sensors
- DR-17A Testing Idle Speed Actuator
- DR-18A Checking Fuel Pressure
- DR-19A Checking Purge System
- DR-20A Checking EGR System
- DR-21A Inspection of Mechanical Systems and Components
- DR-22A Checking DRBII Communications
- Information Bus
- Vehicle Communication Tests
- 1A Bus Failure Messages
- 2A Repairing A DRB Blank Screen
- 3A Ram Error
- 4A Cartridge Failure Error
- 5A Key Pad Failure
- 6A Testing For A Low or High Battery
- 7A Short to Battery Failure
- 7B Short to Battery Failure
- 7C Short to Battery Failure
- 7D Short to Battery Failure
- 7E Short to Battery Failure
- 7H Short to Battery Failure
- 8A Short to 5 Volts Failure
- 8B Short to 5 Volts Failure
- 8F Short to 5 Volts Failure
- 8G Short to 5 Volts Failure
- 8H Short to 5 Volts Failure
- 8J Short to 5 Volts Failure
- 8K Short to 5 Volts Failure
- 9A Short to Ground Failure
- 9B Short to Ground Failure
- 9C Short to Ground Failure
- 10A Bus (+) and Bus (-) Shorted Together Failure
- 11A No Termination Failure
- 11M No Termination Failure
- 12A Bus Bias Level or Bus (+/-) Open Failure
- 12G Bus Bias Level or Bus (+/-) Open Failure
- 12M Bus Bias Level or Bus (+/-) Open Failure
- 13A No Bus Bias Failure
- 13N No Bus Bias Failure
- 14A Not Receiving Bus Messages Correctly Failure
- Verification Tests