A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- If You Cannot Find the Code by Number
- FD or Undocumented Codes
- Code to Test Chart
- P Codes
- Detailed Descriptions
- Trouble Code Descriptions
- Antilock Brakes / Traction Control Systems
- Communication
- Bus (+) & (-) Open
- Bus (+) and Bus (-) Shorted Together
- Bus (+) Open
- Bus (-) Open
- Bus Bias Level Too High
- Bus Bias Level Too Low
- DRB Blank Screen
- No Bus Bias
- No Response Airbag Control Module
- No Response Central Timer Module
- No Response Compass/Mini-Trip Computer
- No Response Instrument Cluster
- No Response Powertrain Control Module
- No Response Radio
- No Termination
- Not Receiving Bus Messages Correctly
- Short to Battery
- Short to Ground
- Short to 5 Volts
- Power Door Lock System
- Restraint Systems
- ACM Accelerometer (Active)
- ACM Accelerometer (Stored)
- AECM Internal Diagnostic Code 1 (Active)
- AECM Internal Diagnostic Code 1 (Stored)
- AECM Output Driver Circuit Open (Active)
- AECM Output Driver Circuit Open (Stored)
- Cluster Message Mismatch (Active)
- Cluster Message Mismatch (Stored)
- Driver Squib Circuit Open (Active)
- Driver Squib Circuit Open (Stored)
- Driver Squib Circuit Shorted (Active)
- Driver Squib Circuit Shorted (Stored)
- Driver Squib Circuit Shorted to Battery (Active)
- Driver Squib Circuit Shorted to Battery (Stored)
- Driver Squib Circuit Shorted to Ground (Active)
- Driver Squib Circuit Shorted to Ground (Stored)
- Firing Capacitor Low (Active)
- Firing Capacitor Low (Stored)
- Logic Capacitor Low (Active)
- Logic Capacitor Low (Stored)
- Loss of Ignition Run Only (Active)
- Loss of Ignition Run/Start (Active)
- Loss of Ignition Run/Start (Stored)
- Missing or Invalid VIN (Active)
- Missing or Invalid VIN (Stored)
- No CCD Communication (Active)
- No CCD Communication (Stored)
- No Cluster CCD Message (Active)
- No Cluster CCD Message (Stored)
- PAB On/Off Switch Indicator Problems
- PAB On/Off Switch Mechanical Problems
- Passenger Squib Circuit Open (Active)
- Passenger Squib Circuit Open (Stored)
- Passenger Squib Circuit Shorted (Active)
- Passenger Squib Circuit Shorted (Stored)
- Passenger Squib Circuit Shorted to Battery (Active)
- Passenger Squib Circuit Shorted to Battery (Stored)
- Passenger Squib Circuit Shorted to Ground (Active)
- Passenger Squib Circuit Shorted to Ground (Stored)
- Safing Sensor Shorted (Active)
- Safing Sensor Shorted (Stored)
- Seat Belt Control Timer Module Failure (Active) - Quad Cab
- Seat Belt Control Timer Module Failure (Stored) - Quad Cab
- Seat Belt CTM Message Mismatch (Active) - Quad Cab
- Seat Belt CTM Message Mismatch (Stored) - Quad Cab
- Seat Belt Lamp Off When SCTM Is In Test Mode - Quad Cab
- VIN Message Mismatch (Active)
- VIN Message Mismatch (Stored)
- Warning Lamp Driver Error (Active)
- Warning Lamp Driver Error (Stored)
- Warning Lamp Open/Shorted (Active)
- Warning Lamp Open/Shorted (Stored)
- Vehicle Theft Security System
- Windshield Wiper and Washer
- By P Code Number
- P0112 Intake Air Temperature Sensor Voltage Low
- P0113 Intake Air Temperature Sensor Voltage Too High
- P0117 ECT Sensor Voltage Too Low
- P0118 ECT Sensor Voltage Too High
- P0121 Accel POS Sensor Volts Do Not Agree W Idle Valid Sign
- P0122 Accel Pedal Position Sen Signal Volt to Low
- P0122 Throttle Position Sensor Voltage Low
- P0123 APPS Signal Voltage Too High
- P0123 Throttle Position Sensor Voltage High
- P0125 Engine Is Cold Too Long
- P0168 Decreased Perfor Due to High Injection Pump Fuel Temp
- P0177 Water In Fuel
- P0178 Water In Fuel Sensor Voltage Too Low
- P0180 Fuel Injection Pump Temp Out of Range
- P0181 Fuel Injection Pump Failure
- P0215 Fuel Injection Pump Control Circuit
- P0216 Fuel Injection Pump Timing Failure (OBD II)
- P0217 Decreased Eng Perf Due to Eng Overheat Condition
- P0219 Crankshaft Position Sensor Overspeed Signal
- P0222 Idle Valid Signals Low
- P0223 Idle Val Signals Both High (Above 5 Volts)
- P0230 Transfer Pump Circuit Out of Range
- P0232 Fuel Shutoff Signal Voltage Too High
- P0234 Turbo Boost Limit Exceeded (OBD II)
- P0236 MAP Sensor Too High Too Long
- P0237 MAP Sensor Voltage Too Low
- P0238 MAP Sensor Voltage Too High
- P0251 Fuel Inj Pump Mechanical Failure Fuel Valve Feedback CKT
- P0253 Fuel Injection Pump Fuel Valve Open Circuit (OBDII)
- P0254 Fuel Injection Pump Fuel Valve Current Too High
- P0300 Multiple Cylinder Misfire
- P0301 Cylinder #1 Misfire
- P0302 Cylinder #2 Misfire
- P0303 Cylinder #3 Misfire
- P0304 Cylinder #4 Misfire
- P0305 Cylinder #5 Misfire
- P0306 Cylinder #6 Misfire
- P0320 No Crank Reference Signal At PCM
- P0336 Crankshaft Position Sensor Signal
- P0341 Camshaft Position Sensor Signal
- P0370 Fuel Injection Pump Speed/Position Sensor Sig Lost
- P0380 Intake Air Heater Relay #1 Control Circuit
- P0381 Wait to Start Lamp Inoperative (OBD II)
- P0382 Intake Air Heater Relay #2 Control Circuit
- P0387 Crankshaft Position Sensor Supply Voltage Too Low
- P0388 Crankshaft Position Sensor Supply Voltage Too High
- P0460 Fuel Level Sending Unit No Change Over Miles
- P0461 Fuel Level Unit No Change Over Time
- P0462 Fuel Level Sending Unit Volts Too Low
- P0463 Fuel Level Sending Unit Volts Too High
- P0500 No Vehicle Speed Sensor Signal
- P0522 Oil Pressure Voltage Too Low
- P0523 Oil Pressure Voltage Too High
- P0524 Oil Pressure Too Low
- P0562 Charging System Voltage Too Low
- P0563 Charging System Voltage Too High
- P0601 Internal Controller Failure
- P0602 ECM Fueling Calibration Error (OBD II)
- P0606 ECM Failure
- P0622 Generator Field Not Switching Properly
- P0645 A/C Clutch Relay Circuit
- P0711 Trans Temp Sensor, No Temp Rise After Start
- P0712 Trans Temp Sensor Voltage Too Low
- P0713 Trans Temp Sensor Voltage Too High
- P0720 Low Output Speed Sensor RPM, Above 15 MPH
- P0743 Torque Converter Clutch Solenoid/Trans Relay CKT.
- P0748 Governor Pressure Solenoid/Trans Relay CKTS
- P0751 O/D Switch Pressed (LO) More Than 5 Min
- P0753 Trans 3-4 Shift Solenoid/Trans Relay Circuits
- P1110 Decreased Engine Perf Due to High IAT
- P1283 Idle Select Signal Invalid
- P1284 Fuel Injector Pump Battery Volt Out-of-Range (OBD II)
- P1285 Fuel Injection Pump Controller Always on
- P1286 APPS Supply Voltage Too High
- P1287 Fuel Inj Pump Control Supply Voltage Too Low (OBD II)
- P1291 No Temperature Rise From Intake Air Heaters
- P1295 APPS Supply Voltage Too Low
- P1388 Auto Shutdown Relay Control Circuit
- P1389 No ASD Relay Output Voltage At PCM
- P1475 Auxiliary 5 Volt Output Too High
- P1488 Auxiliary 5 Volt Output Too Low
- P1492 Battery Temperature Sensor Voltage Too High
- P1493 Battery Temp Sensor Voltage Too Low
- P1594 Charging System Voltage Too High
- P1595 Speed Control Solenoid Circuits
- P1596 Speed Control Switch Always High
- P1597 Speed Control Switch Always Low
- P1682 Charging System Voltage Too Low
- P1683 Speed Control Power Relay CKT or 12V Driver Circuit
- P1689 No Communication Between ECM & Injection Pump Module
- P1690 Fuel Inj Pump CKP Sensor Does Not Agree With ECM CKP
- P1691 Fuel Injection Pump Controller Calibration Error
- P1694 No Bus Messages Received From Companion Module
- P1696 PCM Failure EEPROM Write Denied
- P1698 No Bus Messages Received From PCM
- P1740 TCC or O/D Solenoid Performance
- P1756 GOV Press Not Equal to Target @ 35-40 PSI
- P1757 GOV Press Above 3 PSI In Gear With 0 Mph
- P1762 GOV Pressure Sensor Offset Volts too Low or High
- P1763 Governor Pressure Sensor Volts Too High
- P1764 Governor Pressure Sensor Volts Too Low
- P1765 Trans 12 Volt Supply Relay Control Circuit
- P1899 Park/Neutral Switch Stuck In Park or In Gear
- Trouble Code Descriptions
- Codes with No Number Associated
- Charging System No Code Test
- Checking A/C System
- Checking Accelerator Pedal Sensor Calibration
- Checking Brake Switch
- Checking Brake Switch Sense
- Checking ECM Power and Ground Circuits
- Checking Engine Coolant Temp Sensor Calibration
- Checking Engine Mechanical Systems (No Start)
- Checking Fuel Delivery
- Checking Fuel Heater
- Checking Idle Air Control Motor Operation
- Checking Intake Air Heater #1
- Checking Intake Air Heater #2
- Checking Intake Air Temperature Sensor
- Checking MAP Sensor Calibration
- Checking Park/Neutral Position Switch
- Checking PCM Power and Ground Circuits
- Checking Speed Control Denied Message
- Checking Speed Control On/Off Switch
- Checking Speed Control Operation
- Checking Speed Control Resume/Accel Switch
- Checking Water-In-Fuel Lamp
- Engine Will Not Crank
- Engine Will Not Start Regardless of Temperature
- Engine Will Not Start When Below 40 Degrees F
- No Response Cond From ECM (Diesel Eng Control)
- P Code Charts
- All Other P Codes
- P0112
- P0113
- P0117
- P0118
- P0121
- P0122
- P0123
- P0125
- P0168
- P0177
- P0178
- P0180
- P0181
- P0215
- P0216
- P0217
- P0219
- P0222
- P0223
- P0230
- P0232
- P0234
- P0236
- P0237
- P0238
- P0251
- P0253
- P0254
- P0300
- P0301
- P0302
- P0303
- P0304
- P0305
- P0306
- P0320
- P0336
- P0341
- P0370
- P0380
- P0381
- P0382
- P0387
- P0388
- P0460
- P0461
- P0462
- P0463
- P0500
- P0522
- P0523
- P0524
- P0562
- P0563
- P0601
- P0602
- P0606
- P0622
- P0645
- P0711
- P0712
- P0713
- P0720
- P0743
- P0748
- P0751
- P0753
- P1110
- P1283
- P1284
- P1285
- P1286
- P1287
- P1291
- P1295
- P1388
- P1389
- P1475
- P1488
- P1492
- P1493
- P1594
- P1595
- P1596
- P1597
- P1682
- P1683
- P1687
- P1689
- P1690
- P1691
- P1693
- P1694
- P1696
- P1698
- P1740
- P1756
- P1757
- P1762
- P1763
- P1764
- P1765
- P1899
- Manufacturer Code Charts
- FD or Undocumented Codes
- Code to Test Chart
- Driveability Tests - Trouble Codes
- Checking A/C System
- Checking Accelerator Pedal Sensor Calibration
- Checking Brake Switch
- Checking ECM Power and Ground Circuits
- Checking Engine Coolant Temp Sensor Calibration
- Checking Engine Mechanical Systems
- Checking Fuel Delivery
- Checking Fuel Heater
- Checking Idle Air Control Motor
- Checking Intake Air Heater #1
- Checking Intake Air Heater #2
- Checking Intake Air Temperature Sensor
- Checking MAP Sensor Calibration
- Checking Park/Neutral Position Switch
- Checking PCM Power and Ground Circuits
- Checking Water-In-Fuel Lamp
- Airbag System
- Quad Cab
- ACM Accelerometer (Active)
- ACM Accelerometer (Stored)
- AECM Internal Diagnostic Code 1 (Active)
- AECM Internal Diagnostic Code 1 (Stored)
- AECM Output Driver Circuit Open (Active)
- AECM Output Driver Circuit Open (Stored)
- Cluster Message Mismatch (Active)
- Cluster Message Mismatch (Stored)
- Driver Squib Circuit Open (Active)
- Driver Squib Circuit Open (Stored)
- Driver Squib Circuit Shorted (Active)
- Driver Squib Circuit Shorted (Stored)
- Driver Squib Circuit Shorted to Battery (Active)
- Driver Squib Circuit Shorted to Battery (Stored)
- Driver Squib Circuit Shorted to Ground (Active)
- Driver Squib Circuit Shorted to Ground (Stored)
- Firing Capacitor Low (Active)
- Firing Capacitor Low (Stored)
- Logic Capacitor Low (Active)
- Logic Capacitor Low (Stored)
- Loss of Ignition Run Only (Active)
- Loss of Ignition Run/Start (Active)
- Loss of Ignition Run/Start (Stored)
- Missing or Invalid VIN (Active)
- Missing or Invalid VIN (Stored)
- No CCD Communication (Active)
- No CCD Communication (Stored)
- No Cluster CCD Message (Active)
- No Cluster CCD Message (Stored)
- PAB On/Off Switch Indicator Problems
- PAB On/Off Switch Mechanical Problems
- Passenger Squib Circuit Open (Active)
- Passenger Squib Circuit Open (Stored)
- Passenger Squib Circuit Shorted (Active)
- Passenger Squib Circuit Shorted (Stored)
- Passenger Squib CKT Short to GND (Active)
- Passenger Squib CKT Short to GND (Stored)
- Passenger Squib CKT Shorted to Battery (Active)
- Passenger Squib CKT Shorted to Battery (Stored)
- Safing Sensor Shorted (Active)
- Safing Sensor Shorted (Stored)
- Seat Belt Control Timer Module Failure (Active)
- Seat Belt Control Timer Module Failure (Stored)
- Seat Belt Control Timer Module Message Mismatch (Active)
- Seat Belt Control Timer Module Message Mismatch (Stored)
- Seat Belt Lamp Off When SCTM Is In Test Mode
- VIN Message Mismatch (Active)
- VIN Message Mismatch (Stored)
- Warning Lamp Driver Error (Active)
- Warning Lamp Driver Error (Stored)
- Warning Lamp Open/Shorted (Active)
- Warning Lamp Open/Shorted (Stored)
- Standard Cab
- ACM Accelerometer (Active)
- ACM Accelerometer (Stored)
- AECM Internal Diagnostic Code 1 (Active)
- AECM Internal Diagnostic Code 1 (Stored)
- AECM Output Driver Circuit Open (Active)
- AECM Output Driver Circuit Open (Stored)
- Cluster Message Mismatch (Active)
- Cluster Message Mismatch (Stored)
- Driver Squib Circuit Open (Active)
- Driver Squib Circuit Open (Stored)
- Driver Squib Circuit Shorted (Active)
- Driver Squib Circuit Shorted (Stored)
- Driver Squib Circuit Shorted to Battery (Active)
- Driver Squib Circuit Shorted to Battery (Stored)
- Driver Squib Circuit Shorted to Ground (Active)
- Driver Squib Circuit Shorted to Ground (Stored)
- Firing Capacitor Low (Active)
- Firing Capacitor Low (Stored)
- Logic Capacitor Low (Active)
- Logic Capacitor Low (Stored)
- Loss of Ignition Run Only (Active)
- Loss of Ignition Run/Start (Active)
- Loss of Ignition Run/Start (Stored)
- Missing or Invalid VIN (Active)
- Missing or Invalid VIN (Stored)
- No CCD Communication (Active)
- No CCD Communication (Stored)
- No Cluster CCD Message (Active)
- No Cluster CCD Message (Stored)
- PAB On/Off Switch Indicator Problems
- PAB On/Off Switch Mechanical Problems
- Passenger Squib Circuit Open (Active)
- Passenger Squib Circuit Open (Stored)
- Passenger Squib Circuit Shorted (Active)
- Passenger Squib Circuit Shorted (Stored)
- Passenger Squib Circuit Shorted to Battery (Active)
- Passenger Squib Circuit Shorted to Battery (Stored)
- Passenger Squib Circuit Shorted to Ground (Active)
- Passenger Squib Circuit Shorted to Ground (Stored)
- Safing Sensor Shorted (Active)
- Safing Sensor Shorted (Stored)
- VIN Message Mismatch (Active)
- VIN Message Mismatch (Stored)
- Warning Lamp Driver Error (Active)
- Warning Lamp Driver Error (Stored)
- Warning Lamp Open/Shorted (Active)
- Warning Lamp Open/Shorted (Stored)
- Quad Cab
- Antilock Brakes / Traction Control Systems
- (21) Right Front Sensor Open
- (22) No Signal From Right Front Sensor
- (23) Intermittent Signal From Right Front Sensor
- (25) Left Front Sensor Open
- (26) No Signal From Left Front Sensor
- (27) Intermittent Signal From Left Front Sensor
- (35) Rear Sensor Open
- (36) No Signal From Rear Sensor
- (37) Intermittent Signal From Rear Sensor
- (38) Wheel Speed Mismatch
- (51) Rear Isolation Solenoid Open
- (52) Rear Dump Solenoid Open
- (53) Rear Isolation Solenoid Open
- (54) Rear Dump Solenoid Shorted
- (65) Internal Main Relay Open
- (66) Internal Main Relay Shorted
- (67) Pump Motor Circuit Open
- (68) Pump Motor Stalled
- (69) Excessive Dump Time
- (71) RAM Read/Write
- (72) ROM Checksum
- (73) Watchdog
- (74) System Control Mode Timeout
- (78) Foundation Brake
- (81) Brake Switch Circuit
- (82) Number of Tone Ring Teeth Out of Range
- (83) Tire Revolutions Per Mile Out of Range
- (84) Mismatched VIN
- ABS Warning Lamp
- CAB Failure Verification
- DRB "No Response" Message
- Internal CAB Fault
- Replacing the CAB
- Vehicle Speed Signal Output
- 4WD Sense Circuit
- Audio System
- Quad Cab
- AM/FM Switch Inoperative
- Balance Dial Inoperative
- CASS Error
- CD Eject Switch Inoperative
- CD Error
- Equalizer Inoperative
- External CD Changer (If Equipped)
- Fader Dial Inoperative
- FF/RW Switch Inoperative
- Hour/Minute Switch Inoperative
- No Sound From All Speakers
- No Sound From One Speaker
- No Sound From Right/Left Side Speakers
- Pause/Play Switch Inoperative
- Poor Sound Quality All Speakers
- Poor Sound Quality From One Speaker
- PWR Switch Inoperative
- Radio Error
- Remote Steering Wheel Switches (If Equipped)
- Scan Switch Inoperative
- Seek Switch Inoperative
- Set Switch Inoperative
- Shorted Front Channel
- Shorted Left Channel
- Shorted Rear Channel
- Shorted Right Channel
- Tape Eject Switch Inoperative
- Tune Switch Inoperative
- Volume/Time Switch Inoperative
- 1-5 Presets Inoperative
- Standard Cab
- AM/FM Switch Inoperative
- Balance Dial Inoperative
- CASS Error
- CD Eject Switch Inoperative
- CD Error
- Equalizer Inoperative
- External CD Changer (If Equipped)
- Fader Dial Inoperative
- FF/RW Switch Inoperative
- Hour/Minute Switch Inoperative
- No Sound From All Speakers
- No Sound From One Speaker
- No Sound From Right/Left Side Speakers
- Pause/Play Switch Inoperative
- Poor Sound Quality All Speakers
- Poor Sound Quality From One Speaker
- PWR Switch Inoperative
- Radio Error
- Remote Steering Wheel Switches (If Equipped)
- Scan Switch Inoperative
- Seek Switch Inoperative
- Set Switch Inoperative
- Shorted Front Channel
- Shorted Left Channel
- Shorted Rear Channel
- Shorted Right Channel
- Tape Eject Switch Inoperative
- Tune Switch Inoperative
- Volume/Time Switch Inoperative
- 1-5 Presets Inoperative
- Quad Cab
- Charging System (CH) Tests
- Chime System
- Door Ajar
- Instrument Cluster
- Overhead Console
- Quad Cab
- Average MPH/Fuel Econ Inoperative or Wrong
- CMTC Display Shows Failed
- CMTC Fails to Respond to Instrument Panel Dimming
- CMTC Segments Fail to Light Up
- Distance to Empty Inoperative or Wrong
- Elapsed Time Inoperative/Wrong
- Incorrect Reading Beyond +/- 5
- Repairing OC In CMTC Display
- Repairing SC In CMTC Display
- Switch on Compass Mini-Trip Computer Inoperative
- Trip Odometer Inoperative/Wrong
- Standard Cab
- Average MPH/Fuel Econ Inoperative or Wrong
- CMTC Display Shows Failed
- CMTC Fails to Respond to Instrument Panel Dimming
- CMTC Segments Fail to Light Up
- Distance to Empty Inoperative or Wrong
- Elapsed Time Inoperative/Wrong
- Incorrect Reading Beyond +/- 5
- Repairing OC In CMTC Display
- Repairing SC In CMTC Display
- Switch on Compass Mini-Trip Computer Inoperative
- Trip Odometer Inoperative/Wrong
- Quad Cab
- Power Door Lock System
- Speed Control (SC) Tests
- Vehicle Communication Tests
- Standard Cab
- Bus (+) & (-) Open
- Bus (+) and Bus (-) Shorted Together
- Bus (+) Open
- Bus (-) Open
- Bus Bias Level Too High
- Bus Bias Level Too Low
- DRB Blank Screen
- No Bus Bias
- No Response Airbag Control Module
- No Response Central Timer Module
- No Response Compass/Mini-Trip Computer
- No Response Instrument Cluster
- No Response Powertrain Control Module
- No Response Radio
- No Termination
- Not Receiving Bus Messages Correctly
- Short to Battery
- Short to Ground
- Short to 5 Volts
- Quad Cab
- Bus (+) & (-) Open
- Bus (+) and Bus (-) Shorted Together
- Bus (+) Open
- Bus (-) Open
- Bus Bias Level Too High
- Bus Bias Level Too Low
- DRB Blank Screen
- No Bus Bias
- No Response Airbag Control Module
- No Response Central Timer Module
- No Response Compass/Mini-Trip Computer
- No Response Instrument Cluster
- No Response Powertrain Control Module
- No Response Radio
- No Termination
- Not Receiving Bus Messages Correctly
- Short to Battery
- Short to Ground
- Short to 5 Volts
- Standard Cab
- Vehicle Theft Security System (VTSS)
- 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
- Diagnostic Trouble Code Descriptions