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-2A "Slow Change In Idle MAP Signal"
- DR-3A Repairing "No Change In MAP From Start to Run" Fault
- DR-4A Repairing "MAP Voltage Too Low" Fault
- DR-5A Repairing MAP "Sensor Voltage Too High" Fault
- DR-6A "No Vehicle Speed Signal"
- DR-7A Repairing *O2 Sensor Signal Stays at Center" Fault
- DR-8A Repairing *O2 Sensor Signal Above 12 Volts" Fault
- DR-9A Repairing "Coolant Sensor Voltage Too High" Fault
- DR-10A Repairing "Coolant Sensor Voltage Too Low" Fault
- DR-11A Repairing "Throttle Position Sensor Voltage Hi" Fault
- DR-12A Repairing Throttle Position Sensor Voltage Low" Fault
- DR-13A Repairing "Automatic Idle Speed Motor Circuits" Fault
- DR-14A Repairing "Injector #1 Control Circuit" Fault
- DR-15A Repairing "Injector #2 Control Circuit" Fault
- DR-16A Repairing "Injector #3 Control Circuit" Fault
- DR-17A Repairing "Injector #4 Control Circuit" Fault
- DR-18A Repairing "Purge Solenoid Circuit" Fault
- DR-19A Repairing "EGR Solenoid Circuit" Fault (California)
- DR-20A Repairing "EGR System Failure" Fault (California)
- DR-20B Repairing "EGR System Failure" Fault
- DR-21A Repairing "A/C Clutch Relay Circuit" Fault
- DR-22A Repairing "A/C Clutch Relay Circuit" Fault
- DR-23A Repairing Radiator Fan Relay Circuit" Fault
- DR-24A Repairing "Radiator Fan Relay Circuit" Fault
- DR-25A Repairing "Wastegate Solenoid Circuit" Fault
- DR-26A Repairing "No ASD Relay Voltage at PCM" Fault
- DR-27A Repairing "Turbo Boost Limit Exceeded" Fault
- DR-27B Repairing "Turbo Boost Limit Exceeded" Fault
- DR-27C Repairing "Turbo Boost Limit Exceeded" Fault
- DR-28A Repairing "BARO Read Solenoid Circuit" Fault
- DR-29A Repairing "PCM Failure EEPROM Write Denied" Failure
- DR-30A Checking Secondary Ignition & Timing
- DR-31A Checking Fuel Pressure
- DR-31B Checking Fuel Pressure
- DR-32A Checking Coolant Temperature & TPS Calibrations
- DR-33A Checking MAP Sensor Calibration
- DR-34A Checking Oxygen Sensor Switching
- DR-34B Checking Oxygen Sensor Switching
- DR-35A Checking Idle Speed Motor Operation
- DR-35B Checking Idle Speed Motor Operation
- DR-35C Checking Idle Speed Motor Operation
- DR-35D Checking Idle Speed Motor Operation
- DR-35E Checking Idle Speed Motor Operation
- DR-36A Checking Park/Neutral Safety Switch Input
- DR-37A Checking PCM Ground & Power Circuits
- DR-38A Checking Engine Vacuum
- DR-40A No Fault Code Mechanical Test
- DR-41A Intermittent Test For Solenoids & Relays
- DR-42A Intermittent Test For Voltage Sensors
- DR-42B Intermittent Test For MAP Sensor Signal Change
- DR-43A Intermittent Test For Idle Motor Circuits
- DR-44A Intermittent Test For Injector Circuits
- Airbag System
- 1A Reading System Codes
- 2A Repairing A Blank Scan Tool Screen
- 2B Repairing A Blank Scan Tool Screen
- 3A Correcting "No Response" Condition
- 3B Correcting "No Response" Condition
- 4A Verification of Repair Test
- 5A Air Bag Module Codes
- 6A Repairing Code Front Sensor Short
- 6B Repairing Code Front Sensor Short
- 6C Repairing Code Front Sensor Short
- 7A Repairing Code Ignition 1 (Start/Run) Low
- 7B Repairing Code Ignition 1 (Start/Run) Low
- 8A Repairing Code Ignition 2 (Run Only) Low
- 8B Repairing Code Ignition 2 (Run Only) Low
- 9A Repairing Code Initiator (Squib) Open
- 10A Repairing Code Initiator (Squib) Short
- 11A Low Stored Energy
- 11B Low Stored Energy
- 12A One Front Sensor Open
- 12B One Front Sensor Open
- 13A ASDM Replacement Procedure
- 14A Two Front Sensors Open
- 14B Two Front Sensors Open
- 14C Two Front Sensors Open
- 15A Warning Lamp Open
- 16A Warning Lamp Short
- Antilock Brakes / Traction Control Systems
- 1A Reading Fault Messages
- 2A Testing Blank DRB II Message Screen
- 3A DRB "No Response" Message
- 4 Antilock Lamp Fault
- 5 Antilock Lamp Relay Fault
- 6A CAB Fault
- 7A Excess Decay Valve Fault
- 8A Left Front Wheel Speed Sensor Continuity Fault
- 9A Left Front Wheel Speed Sensor
- 10 Left Rear Wheel Speed Sensor Continuity Fault
- 11A Left Rear Wheel Speed Sensor Fault
- 12 Modulator Fault
- 13A Stop Lamp Switch Input Test
- 14 Pump Motor Fault
- 15 Red Brake Warning Lamp Input Test
- 16A Right Front Wheel Speed Sensor Continuity Fault
- 17A Right Front Wheel Speed Sensor
- 18A Right Rear Wheel Speed Sensor Continuity Fault
- 19A Right Rear Wheel Speed Sensor Fault
- 20 Solenoid Undervoltage Fault
- 21 System Relay Fault
- Charging System (CH) Tests
- CH-1A Testing Battery
- CH-1B Testing Battery
- CH-2A Repair Fault Alt Field Not Switching Properly
- CH-2B Repair Fault Alt Field Not Switching Properly
- CH-2C Repair Checking Field Control For Shorts
- CH-3A Repair Fault Charge System Voltage Too Low
- CH-4A Repair Fault Charge System Voltage Too High
- CH-4B Checking Engine Controller Regulating Circuit
- CH-5A Check For Intermittent Problems
- Speed Control (SP) Tests
- SP-1A Reading Fault Codes
- SP-2A Servo Power/ Ground Open Circuit Test
- SP-2B Speed Control Vacuum Solenoid Control Test
- SP-2C Speed Control Vent Solenoid Circuit Test
- SP-3A "No Vehicle Speed Signal" Fault Test
- SP-3B "No Vehicle Speed Signal" Fault Test
- SP-3C "No Vehicle Speed Signal" Fault Test
- SP-4A Speed Control Switches Test
- SP-5A Speed Control Switches Test
- SP-5B Speed Control Switch Circuit Short Test
- SP-5C Switch Short to Ground Test
- SP-5D Switch Circuit Open Test
- SP-6A Speed Control Resume Switch Test
- SP-6B Speed Control Resume Switch Test
- SP-7A Speed Control Set Switch Circuit Test
- SP-7B Speed Control Set Switch Circuit Test
- SP-8A Speed Control Set Switch Circuit Test
- SP-9A Speed Control Switch Circuit Test
- SP-9B Clockspring Circuit Short Test
- SP-9C Testing Clockspring Circuit For Open
- SP-10A Speed Control Switch Circuit Short Test
- SP-11A Brake Switch Circuit Open Test
- SP-11B Brake Switch Circuit Short Test
- SP-12A Speed Control Servo Operation Test
- SP-12B Vacuum to Servo Test
- SP-13A Park/Neutral Safety Switch Test
- SP-14A Checking For Intermittent Faults
- SP-15A Reading Faults
- SP-16A Speed Control Power Relay Fault Test
- SP-17A Speed Control Solenoid Fault Test
- SP-17B Speed Control Vacuum Solenoid Test
- SP-17C Speed Control Vent Solenoid Test
- SP-18A No Vehicle Speed Signal Fault Test
- SP-19A Speed Control Switches Test
- SP-20A Speed Control Switch Output Test
- SP-21A Brake Switch Circuit Open Test
- SP-21B Brake Switch Circuit Short Test
- SP-22A Park/Neutral Safety Switch Test
- Vehicle Communication Tests
- 7A Bus Failure Messages For AA Body Systems
- 8A Testing For Short to Battery on the Bus
- 9A Testing For Short to 6-Volt on the Bus
- 10A Testing For Short to Ground on the Bus
- 11A Testing For Bus (+) & (-) Shorted Together
- 12A Testing For No Termination on the Bus
- 13A Testing For Bus Bias Level Too Lowon the Bus
- 13B Testing For Bus Bias Level Too Lowon the Bus
- 14A Testing For Bus Bias Level Too High on the Bus
- 14B Testing For Bus Bias Level Too High on the Bus
- 15A Testing For No Bus Bias on the Bus
- 16A Testing For Bus(+) Open on the Bus
- 17A Testing For Bus (-) Open on the Bus
- 18A Testing For Bus(+) & Bus (-) Open on the Bus
- 19A Testing For Not Receiving Bus Messages Correctly
- 20A No Response Messages For AA Body Systems
- 21A Testing the Traveler For No Response
- 21B Testing the Traveler For No Response
- 22A Testing the Engine Controller For No Response
- Verification Tests