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 Sensor 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 Shorted to Voltage" Fault
- DR-9A Checking "O2 Sensor Stays Above Center" Fault
- DR-10A Checking "O2 Sensor Stays Below Center" Fault
- DR-11A Repairing "Coolant Sensor Voltage Too High" Fault
- DR-12A Repairing "Coolant Sensor Voltage Too Low" Fault
- DR-15A Repairing "TPS Voltage High" Fault
- DR-16A Repairing "TPS Voltage Low" Fault
- DR-17A Repairing "Auto Idle Speed Motor Circuits" Fault
- DR-18A Repairing "Purge Solenoid Circuit" Fault
- DR-19A Repairing "EGR Solenoid Circuit" Fault
- DR-20A Repairing "EGR System Failure" Fault
- DR-23A Repairing "A/C Clutch Relay Circuit" Fault
- DR-26A Repairing "Radiator Fan Circuit" Fault
- DR-27A Repairing "No ASD Relay Sense" Fault
- DR-28A Repairing "Torque Converter Lockup SOL CKT" Fault
- DR-30A Repairing" Injector Control Circuit" Fault
- DR-31A Repairing "EMR Miles Not Stored" or "Write Denied" Fault
- DR-32A Intermittent Test For Voltage Sensor
- DR-32B Intermittent Test For MAP Sensor Signal Change
- DR-33A Intermittent Test For Automatic Idle Speed Motor
- DR-34A Intermittent Test For Relays & Solenoids
- 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
- Antitheft and Alarm Systems
- 15A Diagnosing Vehicle Theft Alarm
- 15B Diagnosing Vehicle Theft Alarm
- 16A Door Lock Input
- 17A Door Unlock Input
- 18A Drivers Door Key Cylinder Switch
- 18B Drivers Door Key Cylinder Switch
- 19A Hood Ajar Circuit
- 19B Hood Ajar Circuit
- 20A Horn Output Circuit
- 21A Ignition Input
- 21B Ignition Input
- 22A Ignition Run/ACC Circuit
- 22B Ignition Run/ACC Circuit
- 23A Indicator Lamp Circuit
- 23B Indicator Lamp Circuit
- 24A Lamp Circuit
- 25A No Response Message
- 26A Passenger Door Key Cylinder Switch (Unarm)
- 26B Passenger Door Key Cylinder Switch (Unarm)
- 27A Trunk Key Cylinder Sense Switch/Horn
- 27B Trunk Key Cylinder Sense Switch/Horn
- Automatic Door Lock System
- Body Control Module
- Symptom Identification (Start Here)
- Compass/Temperature Module
- Courtesy Lamp System
- Door Ajar System
- 11A Diagnosing Door Ajar Ckt Without EVIC Panel Monitor
- 11B Diagnosing Door Ajar CKT Without EVIC Panel Monitor
- 11C Diagnosing Door Ajar CKT With Alarm, W/O EVIC
- 12A Diagnosing Left Door Ajar Circuit
- 12B Diagnosing Left Door Ajar With Vehicle Theft Alarm
- 12C Diagnosing Right Door Ajar Circuit
- 12D Diagnosing Door Ajar With Vehicle Theft Alarm
- Electronic Instument Cluster
- 13A Electronic Cluster Diagnostics
- 13B Repairing Electronic Cluster Power Up Upon Entry
- 14A Electronic Cluster Fault Codes
- 15A Elec Cluster Problems Not Covered By Fault Codes
- 15B Electronic Cluster Odometer Failure
- 15C Electronic Cluster Switch Test
- 16A Identifying Faulty Gauge
- 17A Repairing Temperature Gauge Problems
- 18A Identifying Faulty Warning Lamp or Indicator
- 18B Identifying Faulty Warning Lamp Condition
- 19A Identifying Seat Belt Warning Lamp Problem
- 20A Repairing Brake Warning Lamp Problem
- 20B Repairing Brake Warn Lmp, Press Switch, Ign Sw Bulb
- 20C Repairing Brake Warn Lmp, Press Sw, or Ign Sw Bulb
- 21A Dimming Interior Displays
- 21B Dimming Interior Displays
- 21C Dimming Interior Displays
- 21D Dimming Interior Displays
- 21E Dimming Interior Displays
- 21F Dimming Interior Displays
- 21G Dimming Interior Displays
- 21H Dimming Interior Displays
- Fuel Level Sending Unit
- Headlamp Door System
- 51A Diagnosing Headlamp Doors System
- 51B Diagnosing Headlamp Doors System
- 52A Checking Body Controller Output and Power Supply
- 52B Checking Body Controller Output For Short
- 53A Checking Body Controller Output and Power Supply
- 54A Headlamp Doors Will Not Open For Flash-to-Pass
- 55A Headlamp Doors Will Not Open For Flash-to-Pass
- 56A Headlamps Will Not Turn Off
- 56B Headlamps Time Delay Will Not Work
- Illuminated Entry System
- Intermittent Wiper System
- Key-In Lamp System
- Mechanical Cluster Warning Lamps
- Oil Pressure Sending Unit
- 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
- EVIC Panel Monitor
- 22A Repairing Blank Message Screen on EVIC Panel
- 22B Repairing Blank Message Screen on EVIC Panel
- 23A EVIC Panel Messages
- 24A Brake Lamp Setup/Faulty Brake Lamp Out Message
- 24B Repairing Missing Brake Lamp Out Message
- 25A Right Brake Lamp Out
- 26A Left Brake Lamp Out
- 27A Repairing Faulty Coolant Level Low Message
- 28A Repairing Faulty Low Oil Level Message
- 29A Engine Temp High or Engine Temp Critical
- 30A Exterior Lights on
- 31A Repairing Faulty Fasten Seat Belt Message
- 32A Headlamp System/Right Headlamp Out
- 32B Left Headlamp Out
- 33A Key In Ignition/Door Lock Inhibit
- 34A Low Brake Fluid
- 35A Headlamps Out Message But Headlamps Operate
- 36A Park Brake Engaged
- 36B Park Brake Engaged
- 37A Tail Lamp Problems
- 38A Right Tail Lamp Out
- 39A Left Tail Lamp Out
- 40A Trunk Ajar
- 41A Washer Fluid Low
- 42A Turn Signal on
- 42B Turn Signal on
- 43A Tail Lamp Out
- 44A Both Headlamps Out
- 44B Headlamp Power Feed
- 44C Headlamp Power Feed
- 45A All Brake Lamps Out
- 45B All Brake Lamps Out
- 46A Right Side Brake Lamps Out
- 47A Left Side Brake Lamps Out
- 48A All Tail Lamps Out
- 48B All Tail Lamps Out
- 48C All Tail Lamps Out
- 48D All Tail Lamps Out (Checking Left Pod Switch)
- 49A EVIC Panel Switch Test
- 49B EVIC Panel Switch Test
- 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
- Traveler System
- Vehicle Communication Tests
- 42A Bus Failure Messages For AG/AJ Body Systems
- 43A Testing For Short to Battery on the Bus
- 43B Testing For Short to Battery on the Bus
- 43C Testing For Short to Battery on the Bus
- 43D Testing For Short to Battery on the Bus
- 44A Testing For Short to 5-Volts on the Bus
- 45A Testing For Short to Ground on the Bus
- 46A Testing For Bus(+) & Bus(-) Shorted Together
- 47A Testing For No Termination on the Bus
- 48A Testing For Bus Bias Level Too Low on the Bus
- 48B Testing For Bus Bias Level Too Low on the Bus
- 49A Testing For Bus Bias Level Too High on the Bus
- 49B Testing For Bus Bias Level Too High on the Bus
- 50A Testing For No Bus Bias on the Bus
- 51A Testing For Bus(+) & Bus (-) Open on the Bus
- 52A Testing For Bus(+) Open on the Bus
- 53A Testing For Bus(+) & Bus(-) Open on the Bus
- 54A Testing For Not Receiving Bus Messages Correctly
- 55A No Response Messages For AG/AJ Body Systems
- 56A Testing the Elec Instrument Cluster No Response
- 56B Testing the Elec Instrument Cluster No Response
- 57A Testing the Engine Node For No Response
- 58A Testing the Evic Panel For No Response
- 58B Testing the Evic Panel For No Response
- 59A Testing the Traveler For No Response
- 60A Testing the Compass/Temp Module For No Response
- 61A Testing the Body Controller For No Response
- 61B Testing the Body Controller For No Response
- 62A Testing the Engine Controller For No Response
- Verification Tests