A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- FD or Undocumented Codes
- Trouble Code Types and Reset Counter
- Code to Test Chart
- P Codes
- Brief Descriptions
- Code Descriptions & Possible Causes
- P0107 MAP Sensor Voltage Too Low
- P0108 MAP Sensor Voltage Too High
- P0112 Intake Air Temperature Sensor Voltage Low
- P0113 Intake Air Temperature Sensor Voltage High
- P0117 ECT Sensor Voltage Too High
- P0118 ECT Sensor Voltage Too Low
- P0121 TPS Voltage Does Not Agree With MAP
- P0122 Throttle Position Sensor Voltage Low
- P0123 Throttle Position Sensor Voltage High
- P0125 Closed Loop Temperature Not Reached
- P0131 1/1 O2S Voltage Shorted To Ground
- P0132 1/1 O2S Voltage Shorted to Voltage
- P0133 1/1 O2 Sensor Slow Response
- P0135 1/1 O2 Sensor Heater Failure
- P0137 1/2 O2 Sensor Volts Shorted to Ground
- P0138 1/2 Oxygen Sensor Shorted To Voltage
- P0139 1/2 Oxygen Sensor Slow Response
- P0141 1/2 O2 Sensor Heater Failure
- P0171 1/1 Fuel System Lean
- P0172 1/1 Fuel System Rich
- P0201 Injector # 1 Control Circuit
- P0202 Injector # 2 Control Circuit
- P0203 Injector # 3 Control Circuit
- P0204 Injector # 4 Control Circuit
- P0205 Injector # 5 Control Circuit
- P0206 Injector # 6 Control Circuit
- P0207 Injector # 7 Control Circuit
- P0208 Injector # 8 Control Circuit
- 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
- P0307 Cylinder # 7 Misfire
- P0308 Cylinder # 8 Misfire
- P0320 No Crank Reference Signal at PCM
- P0340 No Cam Signal at PCM
- P0351 Ignition Coil # 1 Primary Circuit
- P0420 Catalyst 1/1 Efficiency Failure
- P0441 EVAP Purge Flow Monitor Failure
- P0442 EVAP Leak Monitor Small Leak Detected
- P0443 EVAP Purge Solenoid Circuit
- P0455 EVAP Leak Monitor Large Leak Detected
- P0460 Fuel Level Unit No Change Over Miles
- P0462 Fuel Level Sending Unit Volts Too Low
- P0463 Fuel Level Sending Unit Volts Too High
- P0500 No Vehicle Speed Sensor Signal
- P0505 Idle Air Control Motor Circuits
- P0601 Internal Controller 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
- P0740 Torque Converter Clutch, No RPM Drop at Lockup
- P0743 Torque Converter Clutch Solenoid/Trans Relay Circuits
- P0748 Governor Pressure SOL Control/Trans Relay Circuits
- P0751 O/D Switch Pressed (LO) More than 5 Min
- P0753 Trans 3-4 Shift Solenoid/Trans Relay Circuits
- P0783 3-4 Shift Solenoid, No RPM Drop @ 3-4 Shift
- P1195 1/1 O2 Sensor Slow During Catalyst Monitor
- P1281 Engine Is Cold Too Long
- P1282 Fuel Pump Relay Control Circuit
- P1294 Target Idle Not Reached
- P1296 No 5 Volts to MAP Sensor
- P1297 No Change In MAP Sensor From Start to Run
- P1388 Auto Shutdown Relay Control Circuit
- P1389 No ASD Relay Output Voltage at PCM
- P1391 Intermittent Loss of CMP or CKP
- P1398 Misfire Adaptive Numerator at Limit
- P1486 EVAP Leak Monitor Pinched Hose Found
- P1492 Battery Temperature Sensor Voltage Too High
- P1493 Battery Temperature Sensor Voltage Too Low
- P1494 Leak Detection Pump Switch or Mechanical Fault
- P1495 Leak Detection Pump Solenoid Circuit
- 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
- P1696 PCM Failure EEPROM Write Denied
- P1756 GOV Press Not Equal to Target @ 15-20 PSI
- P1757 GOV Pressure Above 3 PSI In Gear With 0 MPH
- P1762 GOV Press Sensor Offset Volts Too Low or High
- P1763 Governor Pressure Sensor Volts Too High
- P1764 Governor Pressure Sensor Volts Too Low
- P1765 Transmission 12V Supply Relay Control Circuit
- P1899 Park/Neutral Switch Stuck In Park or Gear
- Detailed Descriptions
- P Code Charts
- All Other P Codes
- P0107
- P0108
- P0112
- P0113
- P0117
- P0118
- P0121
- P0122
- P0123
- P0125
- P0131
- P0132
- P0133
- P0135
- P0137
- P0138
- P0139
- P0141
- P0171
- P0172
- P0201
- P0202
- P0203
- P0204
- P0205
- P0206
- P0207
- P0208
- P0300
- P0301
- P0302
- P0303
- P0304
- P0305
- P0306
- P0307
- P0308
- P0320
- P0340
- P0351
- P0420
- P0441
- P0442
- P0443
- P0455
- P0460
- P0462
- P0463
- P0500
- P0505
- P0601
- P0622
- P0645
- P0711
- P0712
- P0713
- P0720
- P0740
- P0743
- P0748
- P0751
- P0753
- P0783
- P1195
- P1281
- P1282
- P1294
- P1296
- P1297
- P1388
- P1389
- P1391
- P1398
- P1486
- P1492
- P1493
- P1494
- P1495
- P1594
- P1595
- P1596
- P1597
- P1682
- P1683
- P1696
- 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 Battery Temp Sensor
- Checking Brake Switch
- Checking Coolant Sensor Calibration
- Checking Engine Mechanical Systems
- Checking Engine Vacuum
- Checking EVAP System
- Checking Fuel Delivery
- Checking Intake Air Temperature Sensor
- Checking MAP Sensor
- Checking Minimum Idle Air Flow
- Checking Oil Pressure Sensor
- Checking O2 Sen Switching
- Checking O2S Heater
- Checking Park/Neutral Position Switch
- Checking PCM Power and Ground Circuits
- Checking Secondary Ignition and Timing
- Checking Throttle Position Sensor
- Antilock Brakes / Traction Control Systems
- With Four Wheel Antilock Brakes
- (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
- With Rear Wheel Antilock Brakes
- (35) Rear Sensor Open
- (36) No Signal From Rear Sensor
- (37) Intermittent Signal From Rear Sensor
- (51) Rear Isolation Solenoid Open
- (52) Rear Dump Solenoid Open
- (53) Rear Isolation Solenoid Open
- (54) Rear Dump Solenoid Shorted
- (63) Rear Reset Switch Closed
- (65) Internal Main Relay Open
- (66) Internal Main Relay Shorted
- (69) Excessive Dump Time
- (71) RAM Read/Write
- (72) ROM Checksum
- (73) Watchdog
- (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
- Pump Motor Fault
- Replacing the CAB
- Vehicle Speed Signal Output
- With Four Wheel Antilock Brakes
- Charging System (CH) Tests
- Speed Control (SC) Tests
- Verification Tests
- Verification Test VER-1A - ABS
- Verification Test VER-1A - No Start Verification Test
- 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-5A2 - Road Test For OBD-II Trouble Codes
- Verification Test VER-5A3 - Road Test For OBD-II Trouble Codes
- Verification Test VER-6A - LDP (Leak Detection Pump) Test
- Diagnostic Trouble Code Descriptions