P0406 2012 Ford Fusion Code - Exhaust Gas Recirculation Sensor 'A' Circuit High
Quick Answer
The EGR monitor checks the EGR sensor signal to the Powertrain Control Module (PCM) for high voltage. Common causes include Faulty EGR volume control solenoid valve, Carbon built up on EGR valve, EGR volume control solenoid valve harness is open or shorted. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0406 2012 Ford Fusion indicates Exhaust Gas Recirculation Sensor 'A' Circuit High.
- Common causes
- Common causes include Faulty EGR volume control solenoid valve, Carbon built up on EGR valve, EGR volume control solenoid valve harness is open or shorted.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P0406 2012 Ford Fusion Description
What are the Possible Causes of the DTC P0406 2012 Ford Fusion?
- 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
How to Fix the DTC P0406 2012 Ford Fusion?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0406 2012 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0406 2012 Ford Fusion code?
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Frequently Asked Questions about P0406 2012 Ford Fusion Code
1. What are the common symptoms of OBDII code P0406 in a 2012 Ford Fusion?
The common symptoms of code P0406 include poor engine performance, rough idling, decreased fuel efficiency, and the illumination of the Check Engine light.
2. What does the OBDII code P0406 'Exhaust Gas Recirculation Sensor 'A' Circuit High' mean?
This code indicates that the Engine Control Module (ECM) has detected a high voltage condition in the exhaust gas recirculation (EGR) sensor 'A' circuit.
3. What are the possible causes of OBDII code P0406 in a 2012 Ford Fusion?
Possible causes of code P0406 include a faulty EGR sensor, damaged wiring or connectors in the EGR circuit, carbon buildup in the EGR system, or a malfunctioning ECM.
4. How can I diagnose the OBDII code P0406 in my 2012 Ford Fusion?
Diagnosing code P0406 involves inspecting the EGR sensor and its wiring for any visible damage, testing the sensor's electrical resistance, checking for carbon deposits in the EGR system, and using a scan tool to monitor EGR sensor data.
5. Can I continue driving my 2012 Ford Fusion with OBDII code P0406 active?
While it may be possible to drive the vehicle with code P0406, it is recommended to address the issue promptly to prevent potential damage to the engine and to ensure optimal fuel efficiency and performance.
6. How do I repair OBDII code P0406 in my 2012 Ford Fusion?
Repairing code P0406 may involve replacing the EGR sensor, repairing damaged wiring or connectors, cleaning out carbon deposits from the EGR system, or resetting the ECM after addressing the underlying issue.
7. Will resetting the Check Engine light resolve OBDII code P0406 in my 2012 Ford Fusion?
Simply resetting the Check Engine light without addressing the root cause of code P0406 will not fix the issue. It is essential to diagnose and repair the underlying problem to prevent the code from reoccurring.
8. Are there any DIY repair tips for fixing OBDII code P0406 in a 2012 Ford Fusion?
While some aspects of diagnosing and repairing code P0406 can be done by DIY enthusiasts, it is recommended to consult a qualified mechanic for a thorough inspection and proper repair to ensure the issue is resolved correctly.
9. How much does it cost to fix OBDII code P0406 in a 2012 Ford Fusion?
The cost of fixing code P0406 can vary depending on the underlying cause of the issue, the need for replacement parts, and labor costs. It is advisable to obtain quotes from different repair shops for an accurate estimate.
10. Can code P0406 in a 2012 Ford Fusion cause further damage if left untreated?
Leaving code P0406 unaddressed can potentially lead to reduced engine efficiency, increased emissions, and further damage to engine components over time. It is best to address the issue promptly to prevent more significant problems.
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