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2004 Powertrain Control System Electronics Diagnostic Guide
Courtesy of: Ford Motor Company Publication
Courtesy of: Ford Motor Company Publication
| Fault Code | Circuit Index | Condition Description | Probable Causes |
|---|---|---|---|
| P0046 | VGT Solenoid | Turbo/supercharger boost control solenoid circuit range/performance | Open circuit, control circuit short to voltage, control circuit short to ground, faulty solenoid, faulty PCM |
| P0069 | BARO | MAP/BARO correlation | MAP/BARO, EP must be within 1 psi |
| P0096 | IAT2 | Intake air temperature sensor 2 circuit range/performance | Faulty sensor, faulty circuitry, faulty PCM |
| P0097 | IAT2 | Intake air temperature sensor 2 circuit low input | Short to ground, faulty sensor, faulty PCM |
| P0098 | IAT2 | Intake air temperature sensor 2 circuit high input | Short to voltage, open in return circuit, faulty PCM, faulty sensor |
| P0101 | MAF | Mass or volume air flow circuit range/performance | Restricted air flow, faulty sensor, contamination, intake air leak, faulty PCM |
| P0103 | MAF | Mass or volume air flow circuit high input | Restriction, water intrusion, signal short to voltage, return circuit open, faulty sensor, faulty PCM |
| P0107 | BARO | Manifold absolute pressure/BARO sensor low input | Open VREF, signal circuit short to ground, faulty sensor, faulty PCM |
| P0108 | BARO | Manifold absolute pressure/BARO sensor high input | Short to voltage, open in signal return, faulty sensor, faulty PCM |
| P0112 | IAT | Intake air temperature circuit low input | Short to ground, faulty sensor, faulty PCM |
| P0113 | IAT | Intake air temperature circuit high input | Short to voltage, open in signal return, faulty sensor, faulty PCM |
| P0117 | ECT | Engine coolant temperature circuit low input | Signal short to ground, faulty sensor, faulty PCM |
| P0118 | ECT | Engine coolant temperature high input | Signal short to voltage, open in return circuit, faulty sensor, faulty PCM |
| P0196 | EOT | Engine oil temperature sensor circuit range/performance | Faulty circuitry, fault sensor, faulty thermostat, faulty PCM |
| P0197 | EOT | Engine oil temperature sensor circuit low input | Signal short to ground, faulty circuitry, faulty sensor, faulty PCM |
| P0198 | EOT | Engine oil temperature sensor circuit high input | Signal short to voltage, open in signal return, faulty circuitry, faulty sensor, faulty PCM |
| P0219 | Engine overspeed condition | Excessive engine speed | |
| P0230 | Fuel Pump | Fuel pump primary circuit | Open FP relay, inertia switch, faulty fuel pump |
| P0231 | Fuel Pump | Fuel pump secondary circuit low | Fuse, relay, inertia switch, fuel pump, open/short circuit |
| P0232 | Fuel Pump | Fuel pump secondary circuit high | Relay failure, short circuit, pump failure |
| P0236 | MAP | Turbo/supercharger boost sensor A circuit range/performance | Restricted exhaust, hose missing |
| P0237 | MAP | Turbo/supercharger boost sensor A circuit low | Circuit open, short to ground, faulty sensor |
| P0238 | MAP | Turbo/supercharger boost sensor A circuit high | Circuit short to voltage, faulty sensor |
| P0261 | INJ | Cylinder #1 injector circuit low | Open circuit, fuel injector, FICM connector loose, FICM |
| P0262 | INJ | Cylinder #1 injector circuit high | Circuit short to ground or voltage, fuel injector, FICM |
| P0263 | INJ | Cylinder #1 contribution/balance | Power cylinder, valve train or injector |
| P0264 | INJ | Cylinder #2 injector circuit low | Open circuit, fuel injector, FICM connector loose, FICM |
| P0265 | INJ | Cylinder #2 injector circuit high | Circuit short to ground or voltage, fuel injector, FICM |
| P0266 | INJ | Cylinder #2 contribution/balance | Power cylinder, valve train or injector |
| P0267 | INJ | Cylinder #3 injector circuit low | Open circuit, fuel injector, FICM connector loose, FICM |
| P0268 | INJ | Cylinder #3 injector circuit high | Circuit short to ground or voltage, fuel injector, FICM |
| P0269 | INJ | Cylinder #3 contribution/balance | Power cylinder, valve train or injector |
| P0270 | INJ | Cylinder #4 injector circuit low | Open circuit, fuel injector, FICM connector loose, FICM |
| P0271 | INJ | Cylinder #4 injector circuit high | Circuit short to ground or voltage, fuel injector, FICM |
| P0272 | INJ | Cylinder #4 contribution/balance | Power cylinder, valve train or injector |
| P0273 | INJ | Cylinder #5 injector circuit low | Open circuit, fuel injector, FICM connector loose, FICM |
| P0274 | INJ | Cylinder #5 injector circuit high | Circuit short to ground or voltage, fuel injector, FICM |
| P0275 | INJ | Cylinder #5 contribution/balance | Power cylinder, valve train or injector |
| P0276 | INJ | Cylinder #6 injector circuit low | Open circuit, fuel injector, FICM connector loose, FICM |
| P0277 | INJ | Cylinder #6 injector circuit high | Circuit short to ground or voltage, fuel injector, FICM |
| P0278 | INJ | Cylinder #6 contribution/balance | Power cylinder, valve train or injector |
| P0279 | INJ | Cylinder #7 injector circuit low | Open circuit, fuel injector, FICM connector loose, FICM |
| P0280 | INJ | Cylinder #7 injector circuit high | Circuit short to ground or voltage, fuel injector, FICM |
| P0281 | INJ | Cylinder #7 contribution/balance | Power cylinder, valve train or injector |
| P0282 | INJ | Cylinder #8 injector circuit low | Open circuit, fuel injector, FICM connector loose, FICM |
| P0283 | INJ | Cylinder #8 injector circuit high | Circuit short to ground or voltage, fuel injector, FICM |
| P0284 | INJ | Cylinder #8 contribution/balance | Power cylinder, valve train or injector |
| P0297 | INJ | Vehicle overspeed condition | Excessive engine speed |
| P0298 | EOT | Engine oil overtemperature condition | Faulty sensor, faulty circuitry, cooling system fault, faulty thermostat, faulty PCM |
| P0299 | EP | Turbo/Supercharger Underboost | EP actual is less than commanded |
| P0300 | INJ | Random misfire detected | CKP/CMP not in sync, more that one cylinder is detected |
| P0301 | INJ | Cylinder #1 misfire detected | Mechanical engine failure |
| P0302 | INJ | Cylinder #2 misfire detected | Mechanical engine failure |
| P0303 | INJ | Cylinder #3 misfire detected | Mechanical engine failure |
| P0304 | INJ | Cylinder #4 misfire detected | Mechanical engine failure |
| P0305 | INJ | Cylinder #5 misfire detected | Mechanical engine failure |
| P0306 | INJ | Cylinder #6 misfire detected | Mechanical engine failure |
| P0307 | INJ | Cylinder #7 misfire detected | Mechanical engine failure |
| P0308 | INJ | Cylinder #8 misfire detected | Mechanical engine failure |
| P0335 | CKP | Crankshaft position sensor A circuit | Crankshaft sensor circuit |
| P0336 | CKP | Crankshaft position sensor A circuit range/performance | Crankshaft sensor circuit |
| P0340 | CMP | Camshaft position sensor A circuit (bank 1 or single sensor) | Camshaft sensor circuit |
| P0341 | CMP | Camshaft position sensor A circuit range/performance (bank 1 or signal sensor) | Camshaft sensor circuit |
| P0381 | GPL | Glow plug/heater indicator circuit | Open circuit, short to ground |
| P0401 | EGR | Exhaust gas recirculation flow insufficient detected | EGR valve, sensor failure |
| P0402 | EGR | Exhaust gas recirculation flow excessive detected | EGR valve, sensor failure |
| P0403 | EGR | Exhaust gas recirculation control circuit | Open circuit, short to ground, short to voltage, faulty valve, faulty PCM |
| P0404 | EGR | Exhaust gas recirculation control circuit range/performance | Difference between command and actual exceeds a specified limit |
| P0405 | EGR | Exhaust gas recirculation sensor A circuit low | Voltage below a specified range |
| P0406 | EGR | Exhaust gas recirculation sensor A circuit high | Voltage above a specified range |
| P0407 | EGR | Exhaust gas recirculation sensor B circuit low | Sensor, open circuit, short to ground |
| P0408 | EGR | Exhaust gas recirculation sensor B circuit high | Sensor, short to voltage |
| P0460 | FLI | Fuel level sensor circuit | Open circuit, short circuit, cluster, tank unit, open return |
| P0470 | EP | Exhaust pressure sensor | Faulty sensor, open signal return, faulty PCM |
| P0471 | EP | Exhaust pressure sensor range/performance | Faulty sensor, restricted supply tube, faulty PCM |
| P0472 | EP | Exhaust pressure sensor low input | Open VREF, short circuit, open circuit |
| P0473 | EP | Exhaust pressure sensor high input | Short to voltage |
| P0478 | EP | Exhaust pressure control valve high input | EP above specified value |
| P0480 | VFAN | Fan 1 control circuit | Short to voltage, short to ground, open circuit |
| P0487 | EGR | EGR throttle position control circuit | Circuit open, shorted, actuator |
| P0488 | EGR | EGR throttle position control range/performance | Throttle plate, actuator, sensor |
| P0500 | VSS | Vehicle speed sensor A | Faulty sensor, circuit failure, PCM failure, trans failure, TR failure |
| P0528 | FSS | Fan speed sensor circuit no signal | Mechanical failure, short to voltage, open circuit, short to ground |
| P0560 | PCED | System voltage | Charging system failure |
| P0562 | PCED | System voltage low | Charging system failure |
| P0563 | PCED | System voltage high | Charging system failure |
| P0565 | SCCS | Cruise control ON signal | Open circuit, short circuit, switch failure, PCM failure to activate switch during testing |
| P0566 | SCCS | Cruise control OFF signal | Open circuit, short circuit, switch failure, PCM failure to activate switch during testing |
| P0567 | SCCS | Cruise control RESUME signal | Open circuit, short circuit, switch failure, PCM failure to activate switch during testing |
| P0568 | SCCS | Cruise control SET signal | Open circuit, short circuit, switch failure, PCM failure to activate switch during testing |
| P0569 | SCCS | Cruise control COAST signal | Open circuit, short circuit, switch failure, PCM failure to activate switch during testing |
| P0603 | PCED | Powertrain control module keep alive memory (KAM) error | Faulty connection, faulty PCM |
| P0605 | PCED | Powertrain control module read only memory (ROM) error | Internal PCM failure |
| P0606 | PCED | ECM/PCM processor | Internal PCM fault |
| P0611 | FICM | Fuel injector control module performance | Internal FICM failure |
| P0620 | ALT | Generator 1 control circuit | Charging system |
| P0623 | ALT | Generator lamp control circuit | Charging system |
| P0645 | PCED | A/C clutch relay control circuit | A/C circuit, A/C relay |
| P0649 | PCED | Cruise control lamp control circuit | Circuit continuity |
| P0670 | GPCM | Glow plug module control circuit | Short to voltage, short to ground, open circuit |
| P0671 | GPCM | Cylinder 1 glow plug circuit | Circuit open, short to ground, short to voltage, faulty glow plug |
| P0672 | GPCM | Cylinder 2 glow plug circuit | Circuit open, short to ground, short to voltage, faulty glow plug |
| P0673 | GPCM | Cylinder 3 glow plug circuit | Circuit open, short to ground, short to voltage, faulty glow plug |
| P0674 | GPCM | Cylinder 4 glow plug circuit | Circuit open, short to ground, short to voltage, faulty glow plug |
| P0675 | GPCM | Cylinder 5 glow plug circuit | Circuit open, short to ground, short to voltage, faulty glow plug |
| P0676 | GPCM | Cylinder 6 glow plug circuit | Circuit open, short to ground, short to voltage, faulty glow plug |
| P0677 | GPCM | Cylinder 7 glow plug circuit | Circuit open, short to ground, short to voltage, faulty glow plug |
| P0678 | GPCM | Cylinder 8 glow plug circuit | Circuit open, short to ground, short to voltage, faulty glow plug |
| P0683 | GPCM | Glow plug control module to PCM communication circuit | Open circuit, short to voltage, short to ground, faulty PCM |
| P0700 | TR | Transmission control system (MIL request) | Internal transmission fault |
| P0703 | BOO | Brake switch B input circuit | Short to ground, open circuit, short to voltage, faulty PCM |
| P0704 | CPP | Clutch switch input circuit | Short to ground, open circuit, short to voltage, faulty PCM |
| P1000 | PCED | OBD systems readiness test not complete | OBD monitors/drive cycles incomplete |
| P1001 | PCED | KOER not able to complete, KOER aborted | Entry conditions for KOER self-test not met |
| P1102 | MAF | Mass air flow sensor in range but lower than expected | VPWR open, return circuit open, signal short to ground sensor |
| P1139 | WIF | Water in fuel indicator | WIF lamp, faulty PCM |
| P1148 | ALT | Generator 2 control circuit | Charging system |
| P1149 | ALT | Generator 2 control circuit high | Charging system |
| P1184 | EOT | Engine oil temperature sensor out of self test range | Engine too cold/hot, leaking thermostat, faulty sensor |
| P1260 | Theft detected, vehicle immobilized | Anti-theft system failure | |
| P1284 | ICP | Aborted KOER injector control pressure regulator | IPR valve, circuit failure |
| P1334 | EGR | EGR throttle position sensor minimum stop performance | Throttle plate, actuator sensor |
| P1335 | EGR | EGR position sensor minimum stop performance | Difference between command and actual exceeds limit |
| P1378 | INJ Module | FICM supply voltage circuit low | Faulty connection, fuse, faulty relay, short to ground, charging system |
| P1379 | INJ Module | FICM supply voltage circuit high | Charging system |
| P1408 | EGR | Exhaust gas recirculation flow out of self test range | EGR above/below required calibration |
| P1464 | ACCS | A/C demand out of self test range | Operator error, A/C circuit shorted to voltage |
| P1501 | VSS | Vehicle speed sensor out of self test range | Operator error |
| P1502 | PCED | Invalid test auxiliary power control module functioning | APCM active while KOER test is running |
| P1531 | PCED | Invalid test accelerator pedal movement | Accelerator moved during KOER testing |
| P1536 | PBA | Parking brake switch circuit | Circuit, switch, PCM failed to activate switch during KOER |
| P1635 | PCM | Tire/axle out of acceptable range | PCM programming |
| P1636 | PCM | Vehicle ID block corrupted, not programmed | PCM programming |
| P1703 | BOO | Brake switch out of self test range | During KOER self-test the BPP signal did not cycle high and low. |
| P1705 | TR | Transmission range circuit not indicating park/neutral during self test | Trans range failure |
| P1725 | Insufficient engine speed increase during self-test | System voltage out of self-test range. Repeat the self-test. | |
| P1726 | Insufficient engine speed decrease during self-test | System voltage out of self-test range. Repeat the self-test. | |
| P2122 | APP | Throttle/pedal position sensor/switch D circuit low input | Faulty sensor, poor connection, open in signal circuit, signal circuit short to ground, faulty PCM |
| P2123 | APP | Throttle/pedal position sensor/switch D circuit high input | Short to voltage, signal return open, faulty sensor, faulty PCM |
| P2127 | APP | Throttle/pedal position sensor/switch E circuit low input | Faulty sensor, poor connection, open in signal circuit, signal circuit short to ground, faulty PCM |
| P2128 | APP | Throttle/pedal position sensor/switch E circuit high input | Short to voltage, signal return open, faulty sensor, faulty PCM |
| P2132 | APP | Throttle/pedal position sensor/switch F circuit low input | Faulty sensor, poor connection, open in signal circuit, signal circuit short to ground, faulty PCM |
| P2133 | APP | Throttle/pedal position sensor/switch F circuit high input | Short to voltage, signal return open, faulty sensor, faulty PCM |
| P2138 | APP | Throttle/pedal position sensor/switch D/E voltage correlation | Difference in sensor readings |
| P2139 | APP | Throttle/pedal position sensor/switch D/F voltage correlation | Difference in sensor readings |
| P2140 | APP | Throttle/pedal position sensor/switch E/F voltage correlation | Difference in sensor readings |
| P2199 | IAT | Intake air temperature 1/2 correlation | Difference between IAT and IAT2 exceeds a specified value |
| P2262 | MAP | Turbo/supercharger boost pressure not detected mechanical | Minimum boost under load. MAP hose disconnected. |
| P2263 | MAP | Turbo/supercharger system performance | MAP does not achieve the minimum pressure |
| P2269 | WIF | Water in fuel condition | Water in fuel, faulty connection, short in circuit, faulty sensor, faulty PCM |
| P2284 | ICP | Injector control pressure sensor circuit range/performance | A difference in commanded versus actual injection oil pressure was detected. |
| P2285 | ICP | Injector control pressure sensor circuit low | ICP signal is lower than specified value |
| P2286 | ICP | Injector control pressure sensor circuit high | ICP signal is higher than specified value |
| P2288 | ICP | Injector control pressure too high | ICP pressure is greater than specified value |
| P2289 | ICP | Injector control pressure too high engine OFF | ICP pressure is greater than specified value |
| P2290 | ICP | Injector control pressure too low | Actual pressure is less than commanded for a specified time |
| P2291 | ICP | Injector control pressure too low engine cranking | ICP cranking pressure too low |
| P2552 | FICMM | FICMM circuit throttle/fuel inhibit circuit | RPM out of range for closed pedal position |
| P2614 | CMP | Camshaft position output circuit | Incorrect CMP signal |
| P2617 | CKP | Crankshaft position output circuit | Incorrect CKP signal |
| P2623 | IPR | Injector control pressure regulator circuit | Open circuit, short to ground, IPR stuck |
| U0101 | PCED | Lost communication with TCM | Communication failure |
| U0105 | PCED | Lost communication with FICM | Communication failure |
| U0155 | PCED | Lost communication with instrument cluster | Communication failure |
| U0306 | PCED | Software incompatibility with fuel injector control module | Communication failure |
| P1610 | PCED | Install a new PCM module | PCM flashing failure |
| P1611 | PCED | Diagnose further | PCM flashing failure |
| P1615 | PCED | Flash erase error | PCM flashing failure |
| P1616 | PCED | Flash erase error, low voltage | PCM flashing failure |
| P1617 | PCED | Block programming error | PCM flashing failure |
| P1618 | PCED | Block programming error, low voltage | PCM flashing failure |
