A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- Code to Test Chart
- 2 and 3 Digit Codes
- Scan Tool Text Codes
- Detailed Descriptions
- Cruise Control
- Heating and A/C
- Restraint Systems
- Transmission Control System
- Code Message to Code Number Conversion
- Listed by 2 Digit Code (With Possible Causes)
- 11 Internal Controller (Watchdog Circuit Test)
- 12 Battery Was Disconnected
- 13 Internal Controller (Watchdog Circuit Test)
- 14 Relay Always on (Relay Contacts Are Welded Closed)
- 15 Relay Always Off (Relay Contact S Are Stuck Open)
- 16 Internal Controller (ROM Check Failure)
- 17 Internal Controller (RAM Check Failure)
- 18 Engine Speed Sensor Circuit
- 19 Bus Communicat on With Engine Module
- 20 Switched Battery Unit
- 21-27 Pressure Switch Circuits
- 28 Bad PRNDL Data
- 29 Throttle Position Sensor Signal Circuit
- 31-32 Hydraulic Pressure Switch Circuits
- 36 Fault Immediately After A Shift
- 37 Solenoid Switch Valve Latched In the LU Position
- 38 Lockup Control Out of Range
- 41 - 44 Solenoid Circuit Errors
- 45 Internal Controller Failure (EEPROM Byte Failure)
- 46 UD Hydraulic Circuit (3-4 Shift Abort)
- 47 Solenoid Switch Valve Latched In the LR Position
- 50-58 Output and Input Speed Errors
- 60-63 Inadequate Element Volumes
- Manufacturer Code Charts
- Code to Test Chart
- Driveability (DR) Tests
- 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-6B Repairing "No Vehicle Speed Signal" Fault
- DR-7A Repairing "O2 Sensor Signal Stays at Center" Fault
- DR-8A "O2 Sensor Signal Shorted to Voltage"
- 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-13A "Throttle Position Sensor Voltage High"
- DR-14A "Throttle Position Sensor Voltage Low"
- DR-15A "Automatic Idle Speed Motor Circuits"
- DR-16A "Injector #1 Control Circuit"
- DR-17A "Injector #2 Control Circuit"
- DR-18A "Injector #3 Control Circuit"
- DR-19A "Injector #4 Control Circuit"
- DR-20A "Injector #5 Control Circuit"
- DR-21A "Injector #6 Control Circuit"
- DR-22A "Purge Solenoid Circuit"
- DR-23A "EGR Solenoid Circuit "
- DR-24A "EGR System Failure"
- DR-25A Repairing "A/C Clutch Relay Circuit" Fault
- DR-26A "A/C Clutch Relay Circuit"
- DR-27A "A/C Clutch Relay Circuit"
- DR-28A "A/C Clutch Relay Circuit"
- DR-29A "Radiator Fan Relay Circuit"
- DR-30A "No ASD Relay Voltage at Controller"
- DR-31A "Torque Converter Lock-Up Solenoid Circuit"
- DR-32A "Controller Failure EMR Miles Not Stored"
- DR-33A Intermittent Test For Sensor Voltage
- DR-33B Intermittent Test For MAP Sensor Signal Change
- DR-35A Intermittent Test For Idle Motor Circuits
- DR-36A Intermittent Test For Relays & Solenoids
- DR-37A Intermittent Test For Injector Control 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
- 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
- Transmission Control System
- Diagnostic Test Procedures
- 1A Entering Diagnostic Tests
- 2A Checking the System For Diagnostic Trouble Codes
- 3A Conditions Needed to Set Diagnostic Trouble Codes
- 4A Shift Lever Test
- 5A Failed Shift Lever Test
- 6A Checking For Intermittent Codes
- 7A Code 14-Relay Output Always on
- 8A Code 15-Relay Output Always Off
- 8B Code 15-Relay Output Always Off
- 9A Code 16-Engine Speed Sensor Error
- 10A Code 20-Switched Battery
- 10B Code 20-Switched Battery
- 11A Code 21-OD Pressure Switch Circuit
- 11B Code 21-OD Pressure Switch Circuit
- 12A Codes 22, 23, 27-2-4 Pressure Switch Circuit
- 13A Code 24-Low/Reverse Pressure Switch Circuit
- 14A Code 29-Throttle Position Sensor
- 15A Code 21-OD Pressure Switch
- 16A Code 30-OD Hydraulic Pressure Switch
- 17A Code 33-OD/2-4 Hydraulic Pressure Switch
- 18A Code 37 or 47-Solenoid Switch Valve
- 19A Code 38-Lock-Up Control
- 20A Codes 50 & 51-Gear Ratio Error In Reverse & First
- 20B Codes 52, 53, & 54-Clutch Assemblies Slipping
- 20C Code 56-Open/Shorted Turbine Speed Sensor
- 20D Code 57-Open/Shorted Output Speed Sensor
- 20E Code 58-Open/Shorted Sensor Ground
- 21A Code 41-LR Solenoid Circuit
- 22A Code 42-2-4 Solenoid Circuit
- 23A Code 43-OD Solenoid Circuit
- 24A Code 43-UD Solenoid Circuit
- 25A For Failed Shift Lever Test
- 26A For Failed Shift Lever Test
- 27A For Failed Shift Lever Test
- 28A For Failed Shift Lever Test
- 29A For Failed Shift Lever Test
- 30A For Failed Shift Lever Test
- 31A For Failed Shift Lever Test
- 32A For Failed Shift Lever Test
- 33A Code 46, UD Hydraulic Pressure Switch Circuit
- 34A For Intermittent Shift Lever Status
- 34B For Intermittent Shift Lever Test
- 35A For No Response
- 35B No Response
- 35C No Response
- 35D No Response
- 35E No Response
- 35F No Response
- 35G No Response
- 35H No Response
- 36A Verification Test
- Helpful Information (Help 1-8)
- Diagnostic Test Procedures
- Vehicle Communication Tests
- 63A Bus Failure Messages For AP Body Systems
- 64A Testing For Short to Battery on the Bus
- 65A Testing For Short to 5-Volts on the Bus
- 66A Testing For Short to Ground on the Bus
- 67A Testing For Bus(+) & Bus(-) Shorted Together
- 68A Testing For No Termination On The Bus
- 69A Testing For Bus Bias Level Too Low on the Bus
- 69B Testing For Bus Bias Level Too Low on the Bus
- 70A Testing For Bus Bias Level Too High on the Bus
- 70B Testing For Bus Bias Level Too High on the Bus
- 71A Testing For No Bus Bias on the Bus
- 72A Testing For Bus(+) Open on the Bus
- 73A Testing For Bus(-) Open on the Bus
- 74A Testing For Bus(+) & Bus(-) Open on the Bus
- 75A Testing For Not Receiving Bus Messages Correctly
- 76A No Response Messages For AP Body Systems
- 77A Testing the Engine Controller For No Response
- Verification Tests
- Diagnostic Trouble Code Descriptions