A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- FD or Undocumented Codes
- Code to Test Chart
- P Codes
- Hex Codes
- Detailed Descriptions
- Trouble Code Descriptions
- Antilock Brakes / Traction Control Systems
- By Diagnostic Trouble Code (DTC) Number
- DTC 21 Right Front Sensor Open
- DTC 22 No Signal From Right Front Sensor
- DTC 23 Intermittent Signal From Right Front Sensor
- DTC 25 Left Front Sensor Open
- DTC 26 No Signal From Left Front Sensor
- DTC 27 Intermittent Signal From Left Front Sensor
- DTC 35 Rear Sensor Open
- DTC 36 No Signal From Rear Sensor
- DTC 37 Intermittent Signal From Rear Sensor
- DTC 38 Wheel Speed Mismatch
- DTC 41 - 48 (EBC 2 & 325, 51, 52, 53, 54 EBC 325 Int. Cab)
- DTC 51 Reat Isolation Solenoid Open - EBC 2
- DTC 52 Rear Dump Solenoid Open - EBC 2
- DTC 53 Isolation Solenoid Shorted - EBC 2
- DTC 54 Rear Dump Solenoid Shorted - EBC 2
- DTC 63 Rear Reset Switch Closed
- DTC 65 - 66 Internal Main Relay
- DTC 67 - 68 Pump Motor Fault
- DTC 69 Excessive Dump Time
- DTC 71 Ram Read/Write
- DTC 72 ROM Checksum
- DTC 73 Watchdog
- DTC 74 System Control Mode Timeout
- DTC 78 Foundation Brake
- DTC 81 Brake Switch Circuit
- DTC 82 Number of Tone Ring Teeth Out of Range
- By Fault Message
- Brake Switch Circuit
- Excessive Dump Time
- Foundation Brake
- Intermittent Signal From Left Front Sensor
- Intermittent Signal From Rear Sensor
- Intermittent Signal From Right Front Sensor
- Internal Cab Fault
- Internal Main Relay
- Isolation Solenoid Shorted - EBC 2
- Left Front Sensor Open
- No Signal From Left Front Sensor
- No Signal From Rear Sensor
- No Signal From Right Front Sensor
- Number of Tone Ring Teeth Out of Range
- Pump Motor Fault
- RAM Read/Write
- Rear Dump Solenoid Open - EBC 2
- Rear Dump Solenoid Shorted - EBC 2
- Rear Reset Switch Closed
- Rear Sensor Open
- Reat Isolation Solenoid Open - EBC 2
- Right Front Sensor Open
- ROM Checksum
- System Control Mode Timeout
- Watchdog
- Wheel Speed Mismatch
- By Diagnostic Trouble Code (DTC) Number
- Central Timer Module Diagnostic Trouble Codes
- Restraint Systems
- Antilock Brakes / Traction Control Systems
- By Manufacturer's Code Number
- By Code Description
- A/C Clutch Relay Circuit
- Auto Shutdown Relay Control Circuit
- Battery Temp Sensor Voltage Too Low/Too High
- Catalytic Converter Efficiency Failure
- Charging System Voltage Too High
- Charging System Voltage Too Low
- Closed Loop Temp Not Reached
- Cylinder #1 - #10 Misfire
- ECT Sensor Voltage Too High
- ECT Sensor Voltage Too Low
- EGR Solenoid CKT
- EGR System Failure
- EVAP Leak Monitor Large Leak Detected
- EVAP Leak Monitor Pinched Hose Found
- EVAP Leak Monitor Small Leak Detected
- EVAP Purge Flow Monitor Failure
- EVAP Purge Solenoid Circuit
- Fuel Level Sending Unit No Change Over Miles
- Fuel Level Sending Unit Volts Too High
- Fuel Level Sending Unit Volts Too Low
- Fuel Pump Relay Control Circuit
- Fuel System Lean
- Fuel System Rich
- Generator Field Not Switching Properly
- Governor Press Sensor Offset Too Low or High
- Governor Pressure Solenoid/Trans Relay CKTS
- Idle Air Control Motor Circuits
- Ignition Coil Primary Circuit
- Injector Control Circuit
- Intake Air Temp Sensor Voltage High
- Intake Air Temp Sensor Voltage Low
- Intermittent Loss of CMP or CKP
- Leak Detection Pump Solenoid Circuit
- Leak Detection Pump SW or Mechanical Fault
- Low Output Speed Sensor RPM, Above 15 MPH
- MAP Sensor Voltage Too High
- MAP Sensor Voltage Too Low
- Misfire Adaptive Numerator at Limit
- Multiple Cylinder Misfire
- No ASD Relay Output Voltage at PCM
- No Cam Signal at PCM
- No Change In MAP From Start to Run
- No Crank Reference Signal at PCM
- No Vehicle Speed Sensor Signal
- O/D Switch Rationality
- O2 Sensor Heater Failure
- O2 Sensor Shorted to Ground
- O2 Sensor Shorted to Voltage
- O2 Sensor Slow Response
- Park/Neutral Switch Failure (Sense Circuit)
- Power Steering Switch Failure
- RAD Fan Control Relay Circuit
- Slow O2 Sensor During Catalyst Monitor
- Speed Control Power Relay Circuit
- Speed Control Solenoid Circuits
- Speed Control Switches
- Target Idle Not Reached
- Throttle Position Sensor Voltage High
- Throttle Position Sensor Voltage Low
- Torque Converter Clutch Solenoid Circuit
- Torque Converter Clutch Solenoid/Trans Relay CKT
- TPS Voltage Does Not Agree With MAP
- Trans Temp Sensor, No Rise After Start
- Trans 12 Volt Supply Relay Control Circuit
- 3-4 Shift Solenoid, No RPM Drop @ 3-4 Shift
- Trouble Code Descriptions
- P Code Charts
- P0107
- P0108
- P0112
- P0113
- P0117
- P0118
- P0121
- P0122
- P0123
- P0125
- P0131
- P0132
- P0133
- P0135
- P0137
- P0138
- P0139
- P0141
- P0143
- P0144
- P0147
- P0151
- P0152
- P0153
- P0155
- P0171
- P0172
- P0174
- P0175
- P0201
- P0202
- P0203
- P0204
- P0205
- P0206
- P0207
- P0208
- P0209
- P0210
- P0300
- P0301
- P0302
- P0303
- P0304
- P0305
- P0306
- P0307
- P0308
- P0309
- P0310
- P0320
- P0340
- P0351
- P0352
- P0353
- P0354
- P0355
- P0401
- P0403
- P0420
- P0441
- P0442
- P0443
- P0455
- P0460
- P0462
- P0463
- P0500
- P0505
- P0545
- P0551
- P0622
- P0711
- P0712
- P0713
- P0720
- P0740
- P0743
- P0748
- P0751
- P0753
- P0783
- P1195
- P1196
- P1282
- P1294
- P1297
- P1388
- P1389
- P1391
- P1398
- P1486
- P1491
- P1492
- P1493
- P1494
- P1495
- P1594
- P1595
- P1597
- P1682
- P1683
- P1687
- P1696
- P1697
- P1756
- P1757
- P1762
- P1763
- P1764
- P1765
- P1899
- Manufacturer Code Charts
- FD or Undocumented Codes
- Code to Test Chart
- Trouble Code (TC) Tests
- DTC Test - CODE TO TC TEST CHART (Checking for Trouble Codes)
- TC-1A No Cam Signal at PCM
- TC-1B No Cam Signal at PCM
- TC-1C No Cam Signal at PCM
- TC-5A Charging System Voltage Low
- TC-5B Charging System Voltage Low
- TC-6A Charging System Voltage High
- TC-6B Charging System Voltage High
- TC-10A Auto Shutdown (ASD) Relay Control Circuit
- TC-11A Generator Field Not Switching Properly
- TC-12A Torque Converter Clutch Solenoid/Trans Relay Circuit
- TC-12B Torque Converter Clutch Solenoid/Trans Relay Circuit
- TC-12C Torque Converter Clutch Solenoid/Trans Relay Circuit
- TC-12D Torque Converter Clutch Solenoid/Trans Relay Circuit
- TC-14A RAD Fan Control Relay Circuit
- TC-15A Speed Control Solenoid Circuits
- TC-15B Speed Control Solenoid Circuits
- TC-16A A/C Clutch Relay Circuit
- TC-17A EGR Solenoid Circuit
- TC-18A Purge Solenoid Circuit
- TC-19A Injector #3 Control Circuit
- TC-20A Injector #2 Control Circuit
- TC-21A Injector #1 Control Circuits
- TC-21B Injector #1 Control Circuit
- TC-25A Idle Air Control Motor Circuits
- TC-25B Idle Air Control Motor Circuits
- TC-25C Idle Air Control Motor Circuits
- TC-25D Idle Air Control Motor Circuits
- TC-25E Idle Air Control Motor Circuits
- TC-26A Throttle Position Sensor Voltage Low
- TC-27A Throttle Position Sensor Voltage High
- TC-30A ECT Sensor Voltage Too Low
- TC-31A ECT Sensor Voltage Too High
- TC-35A No Vehicle Speed Sensor Signal
- TC-36A MAP Sensor Voltage Too Low No 5 Volts to MAP Sensor
- TC-37A MAP Sensor Voltage Too High
- TC-39A No Change In MAP From Start to Run
- TC-40A No Crank Reference Signal At PCM
- TC-41A Ignition Coil #3 Primary Circuit
- TC-42A Ignition Coil #2 Primary Circuit
- TC-43A Ignition Coil #1 Primary Circuit
- TC-43B Ignition Coil #1 Primary Circuit
- TC-44A No ASD Relay Output Voltage at PCM
- TC-44B No ASD Relay Output Voltage at PCM
- TC-48A PCM Failure EEPROM Write Denied/SRI Mile Not Stored
- TC-49A PCM Failure EEPROM Write Denied
- TC-50A Trans 3-4 Solenoid/Trans Relay Circuits
- TC-50B Trans 3-4 Solenoid/Trans Relay Circuits
- TC-50C Trans 3-4 Solenoid/Trans Relay Circuits
- TC-50D Trans 3-4 Solenoid/Trans Relay Circuits
- TC-55A Injector #9 Control Circuit
- TC-56A Injector #10 Control Circuit
- TC-57A Intake Air Temp Sensor Voltage Low
- TC-58A Intake Air Temp Sensor Voltage High
- TC-61A Injector #4 Control Circuit
- TC-62A 1/1 O2 Sensor Shorted to Voltage
- TC-66A 2/1 O2 Sensor Shorted to Voltage
- TC-69A Injector #5 Control Circuit
- TC-70A Injector #6 Control Circuit
- TC-74A Trans Temp Sensor Voltage Too Low
- TC-75A Trans Temp Sensor Voltage Too High
- TC-75B Trans Temp Sensor Voltage Too High
- TC-76A Ignition Coil #4 Primary Circuit
- TC-77A Ignition Coil #5 Primary Circuit
- TC-79A Injector #7 Control Circuit
- TC-80A Injector #8 Control Circuit
- TC-82A Speed Control Power Relay or 12V Driver Circuit
- TC-82B Speed Control Power Relay or 12V Driver Circuit
- TC-87A Speed Control Switch Always Low
- TC-101A Fuel Pump (System) Relay Control Circuit
- TC-102A O2 Sensor 1/1 Slow Response
- TC-103A O2 Sensor 1/1 Heater Failure
- TC-104A 1/2 O2 Sensor Slow Response
- TC-105A 1/2 O2 Sensor Heater Failure
- TC-106A Multiple Cylinder Misfire
- TC-107A Cylinder #1,#2,#3,#4,#5,#6,#7,#8,#9 or #10 Misfire
- TC-112A Catalyst 1/1 Efficiency Failure
- TC-113A EVAP Purge Flow Monitor Failure
- TC-113B EVAP Purge Flow Monitor Failure
- TC-113C EVAP Purge Flow Monitor Failure
- TC-114A Park/Neutral Switch Stuck In Park or In Gear
- TC-115A Power Steering Switch Failure
- TC-118A 1/1 Fuel System Rich
- TC-118B 1/1 Fuel System Rich
- TC-119A 1/1 Fuel System Lean
- TC-119B 1/1 Fuel System Lean
- TC-120A 2/1 Fuel System Rich
- TC-120B 2/1 Fuel System Rich
- TC-121A Fuel System 2/1 Lean
- TC-121B Fuel System 2/1 Lean
- TC-122A O2 Sensor 2/1 Slow Response
- TC-124A O2 Sensor 2/1 Heater Failure
- TC-126A 1/2 O2 Sensor Shorted to Voltage
- TC-128A Closed Loop Temp Not Reached
- TC-132A TPS Voltage Does Not Agree With MAP
- TC-138A Target Idle Not Reached
- TC-138B Target Idle Not Reached
- TC-140A EGR System Failure
- TC-141A Governor Pressure Not Equal to Target 15-20 PSI
- TC-141B Governor Pressure Not Equal to Target 15-20 PSI
- TC-141C Governor Pressure Not Equal to Target 15-20 PSI
- TC-141D Governor Pressure Not Equal to Target 15-20 PSI
- TC-142A Governor Pressure Above 3 Psi In Gear With 0 MPH
- TC-142B Governor Pressure Above 3 PSI In Gear With 0 MPH
- TC-144A 1/3 O2 Sensor Shorted to Ground
- TC-147A 1/3 O2 Sensor Shorted to Voltage
- TC-148A Torque Converter Clutch, No RPM Drop at Lockup
- TC-148B Torque Converter Clutch, No RPM Drop at Lockup
- TC-149A Fuel Level Sending Unit Volts Too Low
- TC-150A Fuel Level Sending Unit Volts Too High
- TC-151A Fuel Level Unit No Change Over Miles
- TC-153A Battery Temp Sensor Voltage Too Low/Too High
- TC-153B Battery Temp Sensor Voltage Too Low/Too High
- TC-155A O2 Sensor 1/1 Voltage Shorted to Ground
- TC-156A O2 Sensor 1/2 Voltage Shorted to Ground
- TC-157A Intermittent Loss of CMP or CKP
- TC-157B Intermittent Loss of CMP or CKP
- TC-157C Intermittent Loss of CMP or CKP
- TC-157D Intermittent Loss of CMP or CKP
- TC-160A EVAP Leak Monitor Small Leak Detected
- TC-161A EVAP Leak Monitor Large Leak Detected
- TC-164A Trans Temp Sensor, No Rise After Start
- TC-165A 3-4 Shift Solenoid, No RPM Drop 3-4 Shift
- TC-166A Low Output Speed Sensor RPM, Above 15 MPH
- TC-167A Governor Pressure Sensor Volts Too Low
- TC-168A Governor Pressure Sensor Volts Too High
- TC-168B Governor Pressure Sensor Volts Too High
- TC-169A Governor Pressure Sensor Offset Volts Too Low or High
- TC-171A Governor Pressure Solenoid/Trans Relay Circuits
- TC-171B Governor Pressure Solenoid/Trans Relay Circuits
- TC-171C Governor Pressure Solenoid/Trans Relay Circuits
- TC-171D Trans 3-4 Solenoid/Trans Relay Ckts
- TC-173A Trans 12 Volt Supply Relay Control Circuit
- TC-181A O2 Sensor 2/1 Shorted to Ground
- TC-183A Leak Detection Pump Solenoid Circuit
- TC-184A Leak Detection Pump Switch or Mechanical Fault
- TC-186A Misfire Adaptive Numerator at Limit
- TC-187A EVAP Leak Monitor Pinched Hose Found
- TC-188A O/D Switch Pressed (LO) More Than 5 Minutes
- TC-189A 1/3 O2 Sensor Heater Failure
- TC-192A Slow 1/1 O2 Sensor During Catalyst Monitor
- TC-194A Slow 1/2 O2 Sensor During Catalyst Monitor
- Airbag System
- 1A Identifying Airbag System Problems
- 1A Identifying Vehicle Equipment and System Problems
- 2A Repairing Driver Squib Circuit Open
- 3A Repairing Driver Squib Circuit Shorted
- 4A Repairing Either Squib Term Shorted to Battery
- 5A Repairing Either Squib Term Shorted to Ground
- 6A Repairing Loss of Ignition Run Only
- 7A Repairing Loss of Ignition Run/Start
- 8A Repairing Passenger Squib Circuit Open
- 9A Repairing Passenger Squib Circuit Shorted
- 10A Repairing Warning Lamp Circuit Open/Shorted
- 11A Airbag Control Module Replacement Procedure
- 12A Repairing Stored Trouble Codes
- 13A Repairing No Cluster CCD Bus Messages
- 14A Repairing Pass. Air Bag Disable Switch Indicator Circuits
- Antilock Brakes / Traction Control Systems
- Test 1A - Checking For Diagnostic Trouble Codes
- Test 2A - Right Front Sensor Open (Code 21)
- Test 3A - No Signal From Right Front Sensor (Code 22)
- Test 4A - Intermittent Signal From Right Front Sensor (Code 23)
- Test 5A - Left Front Sensor Open (Code 25)
- Test 6A - No Signal From Left Front Sensor (Code 26)
- Test 7A - Intermittent Signal From Left Front Sensor (Code 27)
- Test 8A - Rear Sensor Open (Code 35)
- Test 9A - No Signal From Rear Sensor (Code 36)
- Test 10A - Intermittent Signal From Rear Sensor (Code 37)
- Test 11A - Wheel Speed Mismatch (Code 38)
- Test 12A - CAB Fault
- Test 12B - Rear Isolation Solenoid Open - EBC 2 (Code 51)
- Test 12C - Rear Dump Solenoid Open - EBC 2 (Code 52)
- Test 12D - Isolation Solenoid Shorted - EBC 2 (Code 53)
- Test 12E - Rear Dump Solenoid Shorted - EBC 2 (Code 54)
- Test 13A - Rear Reset Switch Closed (Code 63)
- Test 14A - Internal Main Relay (Code 65/66)
- Test 15A - Pump Motor Fault (Code 67/68)
- Test 16A - Excessive Dump Time (Code 69)
- Test 17A - System Control Mode Timeout (Code 74)
- Test 18A - Foundation Brake (Code 78)
- Test 19A - Brake Switch Circuit (Code 81)
- Test 20A - Number of Tone Ring Teeth Out of Range (Code 82)
- Test 21A - Tire Revolutions Per Mile Out of Range (Code 83)
- Test 22A - Mismatched VIN (Code 84)
- Test 24A - 4WD Sense Circuit
- Test 25A - DRB "No Response" Message
- Test 26A - No Vehicle Speed Signal Output
- Test 27A - Wheel Speed Sensor Harness Visual Inspection
- Test 28A - CAB Failure Verification Test
- Test 29A - Replacing the CAB
- Test 30A - RAM Read/Write, ROM Checksum, Watchdog (71/72/73)
- Body Control Module
- Symptom Identification (Start Here)
- Door Ajar System
- 1A Identifying Door Ajar System Problems
- 2A Repairing Shorted Left Door Ajar Circuit
- 3A Repairing Open Left Door Ajar Circuit
- 4A Repairing Shorted Right Door Ajar Circuit
- 5A Repairing Open Right Door Ajar Circuit
- 6A Repairing Open Left Rear Door Ajar Circuit
- 7A Repairing Open Right Rear Door Ajar Circuit
- 8A Repairing Shorted Gate Ajar Circuit
- 9A Repairing Open Gate Ajar Circuit
- Charging System (CH) Tests
- Chime System
- 1A Identifying Chime System Problems
- 2A Repairing Chime Sounds With Left Door Open
- 2B Repairing Chime Sounds With Left Door Open
- 3A Chime Inoperative With Headlamps on
- 4A Repairing Chime Inop. With Key In Ignition Left Door Open
- 5A Repairing Chime Inoperative With Low Oil Pressure
- 6A Repairing Chime Inoperative With Engine Temperature Critical
- Compass/Mini-Trip Computer
- Power Door Lock System
- 1A Identifying Power Lock System Problems
- 2A Repairing Door Lock Switch Failure
- 3A Repairing Door Unlock Switch Failure
- 4A Repairing One or Both Doors Failing to Lock From One Switch
- 5A Repairing Door or Doors Failing to Unlock From One Switch
- 6A Repairing Door Lock Inhibit Feature
- 7A Repairing RKE Left Front Unlock Only
- Speed Control (SC) Tests
- Vehicle Communication Tests
- Air Bag Systems
- Information Bus
- 1A Identifying Vehicle Communication Problems
- 2A Repairing No Response From Airbag Module
- 2B Repairing No Response From Airbag Module
- 3A Repairing No Response From Powertrain Control Module
- 4A Repairing Short to Battery Failure
- 4B Repairing Short to Battery Failure
- 5A Repairing Short to 5 Volts Failure
- 5B Repairing Short to 5 Volts Failure
- 6A Repairing Short to Ground Failure
- 7A Repairing Bus (+) and Bus (-) Shorted Together Failure
- 8A Repairing No Termination Failure
- 9A Repairing Bus Bias Level Too High/Low Failure
- 10A Repairing Not Receiving Bus Messages Correctly Failure
- 11A Repairing No Bus Bias Failure
- 11B Repairing No Bus Bias Failure
- 12A Repairing Bus(+) and/or Bus(-) Open Failure
- 13A Repairing No Response From Central Timer Module
- 13B Repairing No Response From Central Timer Module
- 13C Repairing No Response From Central Timer Module
- 14A Repairing No Response From Compass/Mini-Trip System
- 14B Repairing No Response From Compass/Mini-Trip System
- Vehicle Theft Security System (VTSS)
- 1A Identifying Vehicle Theft Security System (VTSS) Problems
- 2A Repairing Door Disarm Switch Failure
- 3A Repairing Left Door Disarm Switch Circuit Open
- 4A Repairing Right Door Disarm Switch Circuit Open
- 5A Repairing Door Unlock Switch Failure
- 6A Repairing Door Lock Switch Failure
- 7A Repairing Horn Inoperative In Theft Mode
- 8A Repairing Headlamps Inoperative In Theft Mode
- 9A Repairing Vehicle Theft Security Lamp Inoperative
- 10A Repairing Loss of Ignition Run to Central Timer Module
- 11A Repairing Loss of Ignition Run/ACC to Central Timer Module
- Windshield Wiper and Washer System
- Verification Tests
- Verification Test VER-1A - ABS
- Verification Test VER-1A - Air Bag
- Verification Test VER-1A - No Start Verification Test
- Verification Test VER-2A - Body
- Verification Test VER-2A - Road Test Verification
- Verification Test VER-3A - Charging System Verification
- Verification Test VER-4A - Speed Control Verification Test
- Verification Test VER-5A - Road Test For OBD-II Trouble Codes
- Verification Test VER-6A - LDP (Leak Detection Pump) Test
- Diagnostic Trouble Code Descriptions