P0405 FORD - Exhaust Gas Recirculation Sensor 'A' Circuit Low
P0405 FORD Possible Causes
- Faulty EGR volume control solenoid valve
- Carbon built up on EGR valve
- EGR volume control solenoid valve harness is open or shorted
- EGR volume control solenoid valve circuit poor electrical connection
- Faulty EGR temperature sensor and circuit
First diagnose P0405 FORD code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P0405 FORD code
Labor: 1.0The cost of diagnosing the P0405 FORD code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the P0405 FORD code detected?An improper voltage signal is sent to ECM through the valve
P0405 FORD Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation
P0405 Ford DescriptionEarly Exhaust Gas Recirculation (EGR) systems component s include and EGR Valve, and Engine Control Μodule (ECΜ) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Μodulator. Depending on the engine and driving conditions, the ECΜ will control the EGR Solenoid which will operate the EGR Vacuum Μodulator to regulate the opening and closing of the EGR Valve.
The EGR system on recently built vehicles uses a step motor to control the flow rate of EGR from exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECΜ. Two windings are turned ON and OFF in sequence. Each time an ON pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECΜ does not issue the pulse signal. Α certain voltage signal is issued so that the valve remains at that particular opening.
P0405 FORD More InformationNeed more information on how to fix the P0405 FORD code?
Get Access to Factory Service Manuals
P0405 Ford Information for specific Ford models
- P0405 1997 FORD F150
- P0405 1998 FORD F150
- P0405 1999 FORD F150
- P0405 2000 FORD F150
- P0405 2001 FORD F150
- P0405 2002 FORD F150
- P0405 2003 FORD F150
- P0405 2006 FORD FUSION
- P0405 2007 FORD FUSION
- P0405 2008 FORD FUSION
- P0405 2009 FORD FUSION
- P0405 2010 FORD FUSION
- P0405 2011 FORD FUSION
- P0405 2012 FORD FUSION
Need more help?Get the P0405 Ford code diagnosed by a professional: Find a repair shop in your area
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