6.
Ford Diesel PSD Diagnostic Trouble Codes (DTCs)
P0107--Barometric pressure sensor circuit low input. Frequent Cause: PCM's internal barometric sensor.
P0108--Barometric pressure sensor circuit high input. Frequent Cause: PCM's internal barometric sensor.
P0112--Intake air temp. sensor circuit low input. Frequent Cause: Grounded circuit, biased sensor, PCM.
P0113--Intake air temp. sensor circuit high input. Frequent Cause: Open circuit, biased sensor, PCM, short to 5v.
P0122--Accelerator pedal sensor circuit low input. Frequent Cause: Grounded circuit, biased sensor, PCM.
P0123--Accelerator pedal sensor circuit high input. Frequent Cause: Open circuit, biased sensor, PCM, short to 5v.
P0197--Engine oil temp. sensor circuit low input. Frequent Cause: Grounded circuit, biased sensor, PCM.
P0198--Engine oil temp. sensor circuit high input. Frequent Cause: Open circuit, biased sensor, PCM, short to 5v.
P0220--Throttle switch B circuit malfunction. Frequent Cause: Short/open circuit, switch failure, operator, PCM.
P0221--Throttle switch B circuit performance. Frequent Cause: Failed pedal assembly.
P0230--Fuel pump relay driver failure. Frequent Cause: Open FP relay, blown fuse, open/grounded circuit.
P0231--Fuel pump circuit failure. Frequent Cause: Fuse, relay, inertia switch, fuel pump, open/short circuit.
P0232--Fuel pump circuit failure. Frequent Cause: Relay failure, short circuit, pump failure.
P0236--Turbo boost sensor A circuit performance. Frequent Cause: Restricted inlet/exhaust/supply hose, missing hose.
P0237--Turbo boost sensor A circuit low input. Frequent Cause: Circuit open, short to ground, MAP sensor.
P0238--Turbo boost sensor A circuit low high. Frequent Cause: Circuit short to power, MAP sensor.
P0261--Injector circuit low. Frequent Cause: Cylinder 1 Harness short to ground.
P0262--Injector circuit high. Frequent Cause: Cylinder 1 Miswired connector or harness.
P0263--Cylinder 1 contribution/balance fault. Frequent Cause: Power cylinder, valve train or injector problem, circuit.
P0264--Injector circuit low Cylinder 2. Frequent Cause: Harness short to ground.
P0265--Injector circuit high Cylinder 2. Frequent Cause: Miswired connector or harness.
P0266--Cylinder 2 contribution/balance fault. Frequent Cause: Power cylinder, valve train or injector problem, circuit.
P0267--Injector circuit low Cylinder 3. Frequent Cause: Harness short to ground.
P0268--Injector circuit high Cylinder 3. Frequent Cause: Miswired connector or harness.
P0269--Cylinder 3 contribution/balance fault. Frequent Cause: Power cylinder, valve train or injector problem, circuit.
P0270--Injector circuit low Cylinder 4. Frequent Cause: Harness short to ground.
P0271--Injector circuit high Cylinder 4. Frequent Cause: Miswired connector or harness.
P0272--Cylinder 4 contribution/balance fault. Frequent Cause: Power cylinder, valve train or injector problem, circuit.
P0273--Injector circuit low Cylinder 5. Frequent Cause: Harness short to ground.
P0274--Injector circuit high Cylinder 5. Frequent Cause: Miswired connector or harness.
P0275--Cylinder 5 contribution/balance fault. Frequent Cause: Power cylinder, valve train or injector problem, circuit.
P0276--Injector circuit low Cylinder 6. Frequent Cause: Harness short to ground.
P0277--Injector circuit high Cylinder 6. Frequent Cause: Miswired connector or harness.
P0278--Cylinder 6 contribution/balance fault. Frequent Cause: Power cylinder, valve train or injector problem, circuit.
P0279--Injector circuit low Cylinder 7. Frequent Cause: Harness short to ground.
P0280--Injector circuit high Cylinder 7. Frequent Cause: Miswired connector or harness.
P0281--Cylinder 7 contribution/balance fault. Frequent Cause: Power cylinder, valve train or injector problem, circuit.
P0282--Injector circuit low Cylinder 8. Frequent Cause: Harness short to ground.
P0283--Injector circuit high Cylinder 8. Frequent Cause: Miswired connector or harness.
P0284--Cylinder 8 contribution/balance fault. Frequent Cause: Power cylinder, valve train or injector problem, circuit.
P0301--Fault cylinder 1 Misfire detected. Frequent Cause: Mechanical engine failure.
P0302--Fault cylinder 2 Misfire detected. Frequent Cause: Mechanical engine failure.
P0303--Fault cylinder 3 Misfire detected. Frequent Cause: Mechanical engine failure.
P0304--Fault cylinder 4 Misfire detected. Frequent Cause: Mechanical engine failure.
P0305--Fault cylinder 5 Misfire detected. Frequent Cause: Mechanical engine failure.
P0306--Fault cylinder 6 Misfire detected. Frequent Cause: Mechanical engine failure.
P0307--Fault cylinder 7 Misfire detected. Frequent Cause: Mechanical engine failure.
P0308--Fault cylinder 8 Misfire detected. Frequent Cause: Mechanical engine failure.
P0340--Camshaft position sensor ckt. Malfunction. Frequent Cause: Open/grounded circuit, sensor fault, short to power.
P0341--Camshaft position sensor ckt. Performance. Frequent Cause: Harness routing, charging circuit, sensor.
P0344--Camshaft position sensor ckt. Intermittent. Frequent Cause: Harness routing, charging ckt. sensor, int. ckt. improper gap.
P0380--Glow plug circuit malfunction. Frequent Cause: Open/grounded ckt. solenoid open/shorted, failed PCM.
P0381--Glow plug indicator circuit malfunction. Frequent Cause: Open/grounded circuit, lamp open, failed PCM.
P0460--Fuel level sensor circuit malfunction. Frequent Cause: Open/short circuit, cluster, tank unit, open case GND.
P0470--Exhaust back pressure sensor circuit malfunction. Frequent Cause: Biased sensor, open signal return.
P0471--Exhaust back pressure sensor circuit performance. Frequent Cause: Plugged, stuck or leaking hose.
P0472--Exhaust back pressure sensor circuit low input. Frequent Cause: Open/grounded circuit, biased sensor, PCM.
P0473--Exhaust back pressure sensor circuit high input. Frequent Cause: Circuit shorted to 5v, biased sensor, PCM.
P0475--Exhaust pressure control valve malfunction. Frequent Cause: Open/grounded ckt. solenoid open/shorted, failed PCM.
P0476--Exhaust pressure control valve performance. Frequent Cause: Failed/stuck EPR control, EBP fault, EPR circuit.
P0478--Exhaust pressure control valve high input. Frequent Cause: Plugged sensor line, stuck butterfly, restricted exhaust.
P0500--Vehicle speed sensor malfunction. Frequent Cause: Sensor, circuit, PCM, PSOM, TR failure, low trans. Fluid.
P0503--Vehicle speed sensor noisy. Frequent Cause: Harness routing, sensor.
P0541--Manifold intake air heater... Frequent Cause: Open/short circuit.
P0542--Manifold intake air heater... Frequent Cause: Grounded circuit.
P0560--System voltage malfunction. Frequent Cause: Charging system problem/load, glow plugs still enabled.
P0562--System voltage low. Frequent Cause: Low sys. Voltage, charging sys. internal PCM failure.
P0563--System voltage high. Frequent Cause: High sys. voltage, charging sys. internal PCM failure.
P0565--Cruise "On" signal malfunction. Frequent Cause: Open or short circuit, switch failure, PCM failure or failed to activate switch during KOER switch test.
P0566--Cruise "Off" signal malfunction. Frequent Cause: Open or short circuit, switch failure, PCM failure or failed to activate switch during KOER switch test.
P0567--Cruise "Resume" signal malfunction. Frequent Cause: Open or short circuit, switch failure, PCM failure or failed to activate switch during KOER switch test.
P0568--Cruise "Set" signal malfunction. Frequent Cause: Open or short circuit, switch failure, PCM failure or failed to activate switch during KOER switch test.
P0569--Cruise "Coast" signal malfunction. Frequent Cause: Open or short circuit, switch failure, PCM failure or failed to activate switch during KOER switch test.
P0571--Brake switch A circuit malfunction. Frequent Cause: Cruise control codes will be set on every switch test on vehicles not equipped with cruise control.
P0603--Internal control module KAM error. Frequent Cause: Open PCM pin, disconnect B+, faulty PCM.
P0605--Internal control module ROM error. Frequent Cause: Internal PCM failure.
P0606--PCM processor fault. Frequent Cause: Internal PCM failure.
P0640--Manifold intake air heater... Frequent Cause: Circuit open or shorted to ground.
P0670--Glow plug control circuit malfunction. Frequent Cause: Open/grounded circuit, failed GPCM, failed PCM.
P0671--Glow plug #1 circuit failure. Frequent Cause: Circuit/connector failure, failed glow plug, failed GPCM, PCM.
P0672--Glow plug #2 circuit failure. Frequent Cause: Circuit/connector failure, failed glow plug, failed GPCM, PCM.
P0673--Glow plug #3 circuit failure. Frequent Cause: Circuit/connector failure, failed glow plug, failed GPCM, PCM.
P0674--Glow plug #4 circuit failure. Frequent Cause: Circuit/connector failure, failed glow plug, failed GPCM, PCM.
P0675--Glow plug #5 circuit failure. Frequent Cause: Circuit/connector failure, failed glow plug, failed GPCM, PCM.
P0676--Glow plug #6 circuit failure. Frequent Cause: Circuit/connector failure, failed glow plug, failed GPCM, PCM.
P0677--Glow plug #7 circuit failure. Frequent Cause: Circuit/connector failure, failed glow plug, failed GPCM, PCM.
P0678--Glow plug #8 circuit failure. Frequent Cause: Circuit/connector failure, failed glow plug, failed GPCM, PCM.
P0683--Glow plug diagnostic signal communication fault. Frequent Cause: Circuit/connector failure, failed GPCM, PCM.
P0703--Brake switch B circuit malfunction. Frequent Cause: Open/short circuit, switch, PCM, failed to activate switch during KOER switch test.
P0704--Clutch switch input circuit malfunction; F650-F750 with Allison AT545: neutral switch. Frequent Cause: Open/short circuit, switch, PCM, failed to activate switch during KOER switch test.
P0705--TR sensor circuit malfunction. Frequent Cause: Resistance in circuit, faulty sensor, PCM.
P0707--TR sensor circuit low input. Frequent Cause: Open in circuit, biased sensor, PCM.
P0708--TR sensor circuit high input. Frequent Cause: Open in circuit, biased sensor, PCM, short to power.
P0712--Trans. Fluid temp. sensor ckt. Low input. Frequent Cause: Short to ground, biased sensor, PCM.
P0713--Trans. Fluid temp. sensor ckt. High input. Frequent Cause: Open in circuit, biased sensor, PCM, short to power.
P0715--TSS sensor circuit malfunction. Frequent Cause: Short/open circuit, sensor, PCM.
P0717--TSS intermittent failure. Frequent Cause: Short/open circuit, sensor, PCM.
P0718--Noisy TSS. Frequent Cause: Erratic signal, sensor, intermittent circuit.
P0720--OSS sensor circuit malfunction. Frequent Cause: Short/open circuit, sensor, PCM.
P0721--Noisy OSS. Frequent Cause: Erratic signal, sensor, intermittent circuit.