Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2009FUSION SEL, 3.0 1, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID)DTC DIAGNOSISDTC P0405: - EXHAUST GAS RECIRCULATION (EGR) SENSOR A CIRCUIT LOW
2009 Ford Fusion SEL, 3.0 1, FWD
DTC P0405: - Exhaust Gas RECIRCULATION (EGR) Sensor A Circuit Low
2009 Ford Fusion SEL, 3.0 1, FWDSECTION DTC P0405: - Exhaust Gas RECIRCULATION (EGR) Sensor A Circuit Low
DTC P0405: - EXHAUST GAS RECIRCULATION (EGR) SENSOR A CIRCUIT LOW
| Description: | The EGR monitor checks the differential pressure feedback EGR sensor signal to the powertrain control module (PCM) for low voltage. The test fails when the average voltage to the PCM drops to a voltage less than the minimum calibrated value. | ||
| Possible Causes: |
|
||
| Diagnostic Aids: | A DPFEGR PID reading less than 0.05 volt with the ignition ON, engine OFF or running indicates a hard fault. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Crown Victoria, E-Series, Explorer 4.0L, Explorer Sport Trac 4.0L, F-150 4.6L 2V, F-Super Duty 6.8L, Grand Marquis, Mountaineer 4.0L, Mustang 4.0L, Mustang 5.4L, Town Car |
GO to Pinpoint Test HH . | ||
| All others | GO to Pinpoint Test HE . | ||
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.