Complete sequential numerical lookup guide for Diagnostic Trouble Codes (DTCs) on 1994.5–2003 Ford 7.3L Powerstroke Diesel engines.
Having a no-start condition along with your codes? Use our step-by-step diagnostic flowchart below to systematically test high pressure oil, ICP/IPR voltage, CMP sensor signal, fuel pressure, and glow plug circuits:
| DTC Code | Description & Fault Detail |
|---|---|
| P0107 | BARO Sensor Circuit Low Input |
| P0108 | BARO Sensor Circuit High Input |
| P0112 | IAT Sensor Circuit Low Input |
| P0113 | IAT Sensor Circuit High Input |
| P0122 | Accelerator Pedal Position (IVS/TPS) Sensor Circuit Low Input |
| P0123 | Accelerator Pedal Position (IVS/TPS) Sensor Circuit High Input |
| P0197 | EOT Sensor Circuit Low Input |
| P0198 | EOT Sensor Circuit High Input |
| P0220 | Throttle Switch B Circuit Malfunction |
| P0221 | Throttle Switch B Circuit Performance |
| P0230 | Fuel Pump Relay Driver Circuit Failure |
| P0231 | Fuel Pump Relay Driver Circuit Low |
| P0232 | Fuel Pump Relay Driver Circuit High / Failed On |
| P0236 | Turbo Boost Sensor A Circuit Performance |
| P0237 | Turbo Boost Sensor A Circuit Low Input |
| P0238 | Turbo Boost Sensor A Circuit High Input |
| P0261 | Injector Circuit Low - Cylinder 1 |
| P0262 | Injector Circuit High - Cylinder 1 |
| P0263 | Cylinder 1 Contribution / Balance Fault |
| P0264 | Injector Circuit Low - Cylinder 2 |
| P0265 | Injector Circuit High - Cylinder 2 |
| P0266 | Cylinder 2 Contribution / Balance Fault |
| P0267 | Injector Circuit Low - Cylinder 3 |
| P0268 | Injector Circuit High - Cylinder 3 |
| P0269 | Cylinder 3 Contribution / Balance Fault |
| P0270 | Injector Circuit Low - Cylinder 4 |
| P0271 | Injector Circuit High - Cylinder 4 |
| P0272 | Cylinder 4 Contribution / Balance Fault |
| P0273 | Injector Circuit Low - Cylinder 5 |
| P0274 | Injector Circuit High - Cylinder 5 |
| P0275 | Cylinder 5 Contribution / Balance Fault |
| P0276 | Injector Circuit Low - Cylinder 6 |
| P0277 | Injector Circuit High - Cylinder 6 |
| P0278 | Cylinder 6 Contribution / Balance Fault |
| P0279 | Injector Circuit Low - Cylinder 7 |
| P0280 | Injector Circuit High - Cylinder 7 |
| P0281 | Cylinder 7 Contribution / Balance Fault |
| P0282 | Injector Circuit Low - Cylinder 8 |
| P0283 | Injector Circuit High - Cylinder 8 |
| P0284 | Cylinder 8 Contribution / Balance Fault |
| P0301 | Fault Cylinder 1 - Misfire Detected |
| P0302 | Fault Cylinder 2 - Misfire Detected |
| P0303 | Fault Cylinder 3 - Misfire Detected |
| P0304 | Fault Cylinder 4 - Misfire Detected |
| P0305 | Fault Cylinder 5 - Misfire Detected |
| P0306 | Fault Cylinder 6 - Misfire Detected |
| P0307 | Fault Cylinder 7 - Misfire Detected |
| P0308 | Fault Cylinder 8 - Misfire Detected |
| P0340 | CMP Sensor Circuit Malfunction |
| P0341 | CMP Sensor Circuit Performance |
| P0344 | CMP Sensor Circuit Intermittent |
| P0380 | Glow Plug Circuit Malfunction |
| P0381 | Glow Plug Indicator Circuit Malfunction |
| P0460 | Fuel Tank Level Indicator Circuit Malfunction |
| P0470 | Exhaust Back Pressure (EBP) Sensor Circuit Malfunction |
| P0471 | Exhaust Back Pressure (EBP) Sensor Circuit Performance |
| P0472 | Exhaust Back Pressure (EBP) Sensor Circuit Low Input |
| P0473 | Exhaust Back Pressure (EBP) Sensor Circuit High Input |
| P0475 | Exhaust Pressure Control Valve Malfunction |
| P0476 | Exhaust Pressure Control Valve Performance |
| P0478 | Exhaust Pressure Control Valve High Input |
| P0500 | Vehicle Speed Sensor (VSS) Malfunction |
| P0503 | Vehicle Speed Sensor (VSS) Noisy / Intermittent |
| P0541 | Manifold Intake Air Heater (AIH) Circuit Low |
| P0542 | Manifold Intake Air Heater (AIH) Circuit High |
| P0560 | System Voltage Malfunction |
| P0562 | System Voltage Low |
| P0563 | System Voltage High |
| P0566 | Cruise Control "Off" Signal Malfunction |
| P0567 | Cruise Control "Resume" Signal Malfunction |
| P0568 | Cruise Control "Set" Signal Malfunction |
| P0569 | Cruise Control "Coast" Signal Malfunction |
| P0571 | Brake Switch A Circuit Malfunction |
| P0603 | Internal Control Module Keep Alive Memory (KAM) Error |
| P0605 | Internal Control Module Read Only Memory (ROM) Error |
| P0606 | PCM Processor Internal Fault |
| P0640 | Manifold Intake Air Heater Control Circuit |
| P0666 | Cruise Control "On" Signal Malfunction |
| P0670 | Glow Plug Control Module (GPCM) Circuit Malfunction |
| P0671 | Glow Plug #1 Circuit Failure |
| P0672 | Glow Plug #2 Circuit Failure |
| P0673 | Glow Plug #3 Circuit Failure |
| P0674 | Glow Plug #4 Circuit Failure |
| P0675 | Glow Plug #5 Circuit Failure |
| P0676 | Glow Plug #6 Circuit Failure |
| P0677 | Glow Plug #7 Circuit Failure |
| P0678 | Glow Plug #8 Circuit Failure |
| P0683 | Glow Plug Diagnostic Signal Communication Fault |
| P0703 | Brake Switch B Circuit Malfunction |
| P0704 | Clutch Pedal Position (CPP) Switch Input Circuit Failure |
| P0705 | Transmission Range (TR) Sensor Circuit Malfunction |
| P0707 | Transmission Range (TR) Sensor Circuit Low Input |
| P0708 | Transmission Range (TR) Sensor Circuit High Input |
| P0712 | Transmission Fluid Temp (TFT) Sensor Low Input |
| P0713 | Transmission Fluid Temp (TFT) Sensor High Input |
| P0715 | Turbine Shaft Speed (TSS) Sensor Circuit Fault |
| P0717 | TSS Sensor Intermittent Failure |
| P0718 | Noisy TSS Sensor Signal |
| P0720 | Output Shaft Speed (OSS) Sensor Circuit Malfunction |
| P0721 | Noisy OSS Sensor Signal |
| P0722 | OSS Sensor Intermittent Failure |
| P0732 | Gear Two Ratio Incorrect |
| P0733 | Gear Three Ratio Incorrect |
| P0741 | Torque Converter Clutch (TCC) System Performance / Stuck Off |
| P0743 | Torque Converter Clutch (TCC) System Electrical Failure |
| P0750 | Shift Solenoid 1 (A) Malfunction |
| P0755 | Shift Solenoid 2 (B) Malfunction |
| P0781 | 1-2 Shift Malfunction |
| P0782 | 2-3 Shift Malfunction |
| P0783 | 3-4 Shift Malfunction |
| P1000 | OBD II Monitor Checks Not Complete |
| P1105 | Dual Alternator Upper Fault (Monitor) |
| P1106 | Dual Alternator Lower Fault (Control) |
| P1107 | Dual Alternator Lower Circuit Malfunction (Control) |
| P1108 | Dual Alternator Battery Lamp Circuit Malfunction |
| P1111 | System Pass (No DTCs Available) |
| P1118 | Manifold Air Temperature (MAT) Sensor Low Input |
| P1119 | Manifold Air Temperature (MAT) Sensor High Input |
| P1139 | Water In Fuel Indicator Circuit Malfunction |
| P1140 | Water In Fuel Condition Detected |
| P1184 | Engine Oil Temp (EOT) Sensor Circuit Performance Out of Range |
| P1209 | Injection Control System Pressure Peak Fault |
| P1210 | Injection Control Pressure Above Expected Level |
| P1211 | ICP Not Controllable - Pressure Above / Below Desired Level |
| P1212 | ICP Voltage Not at Expected Level |
| P1218 | CID Stuck High |
| P1219 | CID Stuck Low |
| P1247 | Turbo Boost Pressure Low |
| P1248 | Turbo Boost Pressure Not Detected |
| P1249 | Wastegate Fail Steady State Test |
| P1250 | Electronic Passive Anti-Theft System (PATS) Fault |
| P1261 | High to Low Side Short - Cylinder 1 |
| P1262 | High to Low Side Short - Cylinder 2 |
| P1263 | High to Low Side Short - Cylinder 3 |
| P1264 | High to Low Side Short - Cylinder 4 |
| P1265 | High to Low Side Short - Cylinder 5 |
| P1266 | High to Low Side Short - Cylinder 6 |
| P1267 | High to Low Side Short - Cylinder 7 |
| P1268 | High to Low Side Short - Cylinder 8 |
| P1271 | High to Low Side Open - Cylinder 1 |
| P1272 | High to Low Side Open - Cylinder 2 |
| P1273 | High to Low Side Open - Cylinder 3 |
| P1274 | High to Low Side Open - Cylinder 4 |
| P1275 | High to Low Side Open - Cylinder 5 |
| P1276 | High to Low Side Open - Cylinder 6 |
| P1277 | High to Low Side Open - Cylinder 7 |
| P1278 | High to Low Side Open - Cylinder 8 |
| P1280 | ICP Sensor Circuit Out of Range Low |
| P1281 | ICP Sensor Circuit Out of Range High |
| P1282 | Excessive Injection Control Pressure |
| P1283 | IPR (Injection Pressure Regulator) Circuit Failure |
| P1284 | ICP Failure - Aborts KOER or CCT Test |
| P1291 | High Side No. 1 (Right Bank) Short to GND or B+ |
| P1292 | High Side No. 2 (Left Bank) Short to GND or B+ |
| P1293 | High Side Open - Bank No. 1 (Right) |
| P1294 | High Side Open - Bank No. 2 (Left) |
| P1295 | Multiple Faults on Bank No. 1 (Right) |
| P1296 | Multiple Faults on Bank No. 2 (Left) |
| P1297 | High Sides Shorted Together |
| P1298 | IDM Failure |
| P1316 | Injector Circuit / IDM Codes Detected |
| P1391 | Glow Plug Circuit Low Input - Bank No. 1 (Right) |
| P1393 | Glow Plug Circuit Low Input - Bank No. 2 (Left) |
| P1395 | Glow Plug Monitor Fault - Bank No. 1 |
| P1396 | Glow Plug Monitor Fault - Bank No. 2 |
| P1397 | System Voltage Out of Self-Test Range |
| P1464 | A/C On During KOER or CCT Test |
| P1501 | Vehicle Speed Sensor Out of Self-Test Range |
| P1502 | Invalid Self-Test - APCM Functioning |
| P1531 | Invalid Test - Accelerator Pedal Movement |
| P1536 | Parking Brake Applied Failure |
| P1662 | IDM Enable (EN) Circuit Failure |
| P1663 | Fuel Demand Command Signal (FDCS) Circuit Failure |
| P1667 | Cylinder Identification (CID) Circuit Failure |
| P1668 | PCM to IDM Diagnostic Communication Error |
| P1670 | Electronic Feedback (EF) Signal Not Detected |
| P1690 | Wastegate Control Valve Malfunction |
| P1702 | TRS Sensor Intermittent Circuit Malfunction |
| P1704 | Digital TRS Failed to Transition State |
| P1705 | TR Sensor Out of Self-Test Range |
| P1711 | TFT Sensor Out of Self-Test Range |
| P1713 | TFT Stuck in Range Low - Below 50°F |
| P1714 | Shift Solenoid A Inductive Signature Malfunction |
| P1715 | Shift Solenoid B Inductive Signature Malfunction |
| P1718 | TFT Stuck in Range High - Above 250°F |
| P1728 | Transmission Slip Error Detected |
| P1729 | 4x4 Low Switch Error |
| P1744 | Torque Converter Clutch (TCC) System Performance |
| P1746 | EPC Solenoid Open Circuit |
| P1747 | EPC Solenoid Short Circuit |
| P1754 | Coasting Clutch Solenoid (CCS) Circuit Malfunction |
| P1760 | EPC Solenoid Short Intermittent |
| P1780 | Transmission Control Switch (TCS) Out of Self-Test Range |
| P1781 | 4x4 Low Circuit Out of Self-Test Range |
| P1783 | Transmission Overtemperature Condition |
| No Code | No Communication with Scanner / PCM Diagnostics |
| No Code | Auxiliary Powertrain Control System (APCM / Auxiliary Idle Control) Fault |
| No Code | Tachometer Signal Failure / Sensor Disconnect |